Akc Puppy Weight Calculator Male

AKC Male Puppy Weight Calculator – Estimate Adult Size :root { –primary-color: #004a99; –success-color: #28a745; –background-color: #f8f9fa; –text-color: #333; –border-color: #ddd; –shadow-color: rgba(0, 0, 0, 0.1); –white: #fff; –error-color: #dc3545; } body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: var(–background-color); color: var(–text-color); line-height: 1.6; margin: 0; padding: 0; display: flex; justify-content: center; padding: 20px 0; } .container { max-width: 960px; width: 100%; background-color: var(–white); padding: 30px; border-radius: 8px; box-shadow: 0 4px 15px var(–shadow-color); margin: 0 auto; } h1, h2, h3 { color: var(–primary-color); text-align: center; } h1 { margin-bottom: 10px; font-size: 2.2em; } h2 { font-size: 1.8em; margin-top: 30px; margin-bottom: 20px; border-bottom: 2px solid var(–primary-color); padding-bottom: 5px; } h3 { font-size: 1.4em; margin-top: 20px; margin-bottom: 15px; } .calc-section { background-color: var(–white); 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AKC Male Puppy Weight Calculator

Estimate your male puppy's future adult weight with our specialized calculator.

Puppy Weight Predictor

Labrador Retriever German Shepherd Golden Retriever Standard Poodle Bulldog Beagle Dachshund (Standard) Rottweiler Siberian Husky Boxer Custom / Other

Estimated Adult Weight

Assumptions:
Breed: Standard
Average Adult Male Weight: — lbs
Formula Basis: This calculator uses a common estimation method. It calculates the puppy's current growth rate relative to breed averages and extrapolates to predict adult weight. The formula is an approximation and individual growth can vary significantly. Specifically, it estimates the current weight as a percentage of the breed's average adult weight, determines how far along the puppy is in its growth curve, and then projects to reach maturity. A simplified version involves calculating the difference between the average adult weight and the current weight, estimating how many more weeks of growth are left, and projecting the final weight.

Growth Projection Chart

Projected weight gain from current age to estimated adult weight.

Breed Average Weights (Male)

Breed Average Adult Weight (lbs) Weight Range (lbs)
Labrador Retriever 70 65 – 80
German Shepherd 80 70 – 90
Golden Retriever 70 60 – 75
Standard Poodle 65 55 – 70
Bulldog 50 45 – 55
Beagle 25 20 – 30
Dachshund (Standard) 32 28 – 35
Rottweiler 110 95 – 130
Siberian Husky 55 45 – 60
Boxer 70 60 – 80
Custom / Other

AKC Male Puppy Weight Calculator: Estimating Your Dog's Future Size

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What is the AKC Male Puppy Weight Calculator?

The AKC male puppy weight calculator is a specialized tool designed to help dog owners, breeders, and enthusiasts estimate the likely adult weight of a male puppy. Utilizing information such as the puppy's current age, current weight, and breed-specific growth data (often referencing AKC standards), this calculator provides an educated projection of how big the puppy will grow. It's particularly useful for owners of large or giant breeds who need to plan for space, food, and veterinary care, or for breeders monitoring the development of their litters.

Who Should Use It?

  • New Puppy Owners: Especially those bringing home a puppy from a breed known for significant growth (e.g., Great Dane, Mastiff, German Shepherd).
  • Breeders: To track litter development against breed standards and identify potential growth issues early.
  • Prospective Owners: Researching breeds and wanting a realistic idea of the adult size and associated costs.
  • Veterinary Professionals: As a quick reference tool during check-ups, though always secondary to professional assessment.

Common Misconceptions

  • Exact Prediction: It's crucial to understand this is an ESTIMATE. Genetics, diet, health, and environment play huge roles. The calculator provides a likely range, not a guarantee.
  • One-Size-Fits-All: Every puppy is an individual. Some grow faster or slower than average, or end up outside the typical range.
  • Applies to All Dogs: While based on AKC standards, it's most accurate for purebred male dogs registered or recognized by the AKC. Mixed breeds will have more variable outcomes.

AKC Male Puppy Weight Calculator Formula and Mathematical Explanation

The exact formula can vary between calculators, but a common approach involves a combination of current measurements and breed averages. A simplified, conceptual model often looks like this:

Conceptual Formula:

Estimated Adult Weight = Current Weight + (Weeks Remaining in Growth Period * Average Weekly Gain (Projected))

A more refined method might consider the puppy's current weight as a percentage of the breed's average adult weight and map this onto a typical growth curve.

Let's break down the variables and process:

  1. Current Weight (CW): The weight of the puppy right now.
  2. Current Age (CA): The puppy's age in weeks.
  3. Average Male Adult Weight (MAW): The typical adult weight for the specific breed, often sourced from AKC breed standards. This is the target value.
  4. Growth Period Estimation: Dogs mature at different rates. Large breeds mature slower (up to 18-24 months) than small breeds (around 12 months). The calculator estimates the number of weeks remaining until maturity. A common heuristic is that puppies reach about 75% of their adult weight by 6 months (26 weeks).
  5. Growth Rate Calculation: The calculator might compare the puppy's current weight to the average adult weight. For example, if a 16-week-old Labrador (average adult 70 lbs) weighs 40 lbs, it's significantly ahead of the typical curve for that age.
  6. Extrapolation: Using the current growth trajectory and estimated time remaining, the calculator projects the final weight.

Variables Table

Variable Meaning Unit Typical Range (for context)
CW Current Weight of Puppy Pounds (lbs) Varies greatly by age and breed (e.g., 2 lbs for Chihuahua puppy at 8 weeks, 60 lbs for a Great Dane puppy at 16 weeks)
CA Current Age of Puppy Weeks Typically 8 – 30 weeks for calculator input. Maturity varies by breed.
MAW Average Male Adult Weight (Breed Specific) Pounds (lbs) 15 lbs (Miniature Poodle) to 175+ lbs (English Mastiff)
Estimated Adult Weight (EAW) Predicted Final Weight Pounds (lbs) Based on MAW and growth trajectory
Growth Factor / Percentage Ratio of Current Weight to Average Adult Weight (CW/MAW) Unitless 0.1 to 0.8 (approx.) for puppies during their main growth phase.
Weeks Remaining Estimated weeks until skeletal maturity Weeks Varies by breed size (e.g., 20 weeks for small breeds, 70+ for giant breeds)

Practical Examples (Real-World Use Cases)

Example 1: Mid-Sized Breed – Golden Retriever Puppy

Scenario: Sarah has a 14-week-old male Golden Retriever puppy named Max. Max currently weighs 35 lbs. Golden Retrievers typically mature around 70 lbs for males.

  • Inputs:
    • Breed: Golden Retriever
    • Current Weight: 35 lbs
    • Current Age: 14 weeks
    • Average Male Adult Weight: 70 lbs
  • Calculation (Simplified Logic):
    • Max is currently 35/70 = 50% of his estimated adult weight at 14 weeks. This suggests he's on a healthy track.
    • A common rule of thumb is that large breed puppies reach ~50-60% of their adult weight by 16 weeks. Max is slightly ahead, which is fine for this age.
    • The calculator might estimate roughly 30-40 more weeks of significant growth.
    • Projecting forward, considering his current rate and the breed's average growth curve, the calculator estimates Max will reach around 70-75 lbs.
  • Outputs:
    • Estimated Adult Weight: 72 lbs
    • Weight at 6 Months (26 Weeks): Approx. 55 lbs
    • Expected Gain Per Week (Next Few Months): Approx. 1.5 lbs
    • Growth Factor: 0.50
  • Interpretation: Max is growing well and is projected to be within the typical range for a male Golden Retriever. Sarah can plan for a medium-large dog, ensuring she has adequate food and space.

Example 2: Large Breed – German Shepherd Puppy

Scenario: John adopted an 8-week-old male German Shepherd puppy, Rex, weighing 18 lbs. The average adult weight for males is around 80 lbs.

  • Inputs:
    • Breed: German Shepherd
    • Current Weight: 18 lbs
    • Current Age: 8 weeks
    • Average Male Adult Weight: 80 lbs
  • Calculation (Simplified Logic):
    • Rex is currently 18/80 = 22.5% of his estimated adult weight at 8 weeks. This is on the lower end but acceptable for a young puppy of this breed.
    • German Shepherds typically reach about 50% of their adult weight around 16-18 weeks.
    • The calculator estimates Rex has approximately 50-60 more weeks of growth.
    • Based on the growth curve, the calculator projects Rex to reach the average adult weight of 80 lbs, perhaps slightly more, estimating around 85 lbs.
  • Outputs:
    • Estimated Adult Weight: 85 lbs
    • Weight at 6 Months (26 Weeks): Approx. 50 lbs
    • Expected Gain Per Week (Next Few Months): Approx. 2 – 2.5 lbs
    • Growth Factor: 0.225
  • Interpretation: Rex is starting on the smaller side but is projected to reach the higher end of the average range for his breed. John should monitor his growth, ensure proper nutrition, and consult his veterinarian to confirm he's on a healthy path. Early socialization and training are also key for this breed.

How to Use This AKC Male Puppy Weight Calculator

Using the calculator is straightforward. Follow these steps to get an estimated adult weight for your male puppy:

  1. Select Breed: Choose your puppy's breed from the dropdown menu. If your breed isn't listed, select "Custom / Other" and manually input the breed's average male adult weight and range.
  2. Input Current Weight: Enter your puppy's current weight in pounds (lbs). Be as accurate as possible.
  3. Input Current Age: Enter your puppy's current age in weeks.
  4. Enter Breed Averages (If Custom): If you selected "Custom / Other," you will need to enter the average adult male weight and the typical weight range (low and high) for that breed. If a breed is selected, these fields will auto-populate or be hidden.
  5. Click Calculate: Press the "Calculate" button.

How to Read Results

  • Estimated Adult Weight: This is the primary prediction. It represents the most likely adult weight based on the inputs and common growth patterns.
  • Intermediate Values: These provide context:
    • Weight at Halfway: An estimate of weight around 6 months (26 weeks), a key milestone.
    • Expected Gain Per Week: Indicates the approximate rate of weight gain in the coming weeks/months. Useful for dietary planning.
    • Growth Factor: Shows how your puppy's current weight compares to the breed average (e.g., 0.5 means 50%).
  • Assumptions: Confirms the breed selected and the average adult weight used in the calculation.
  • Growth Projection Chart: Visualizes the estimated growth curve from the puppy's current stage to its projected adult weight.

Decision-Making Guidance

  • Planning: Use the estimated weight to plan for food costs, crate size, collar/leash size, and potential need for larger dog beds or furniture.
  • Health Monitoring: If the estimated weight is significantly higher or lower than the breed average, consult your veterinarian. It could indicate a need for dietary adjustments or further investigation into potential health issues.
  • Training & Socialization: Knowing the potential adult size helps prepare for managing a larger dog, especially concerning training, exercise needs, and socialization during the critical puppy phases.

Key Factors That Affect {primary_keyword} Results

While the calculator provides a valuable estimate, numerous factors influence a puppy's actual growth trajectory. Understanding these can help interpret the results:

  1. Genetics: This is the most significant factor. Even within a breed, genetic variations determine a puppy's potential size. Litter size can also play a role; puppies from larger litters may sometimes be smaller individually.
  2. Nutrition: A high-quality, age-appropriate diet is crucial. Overfeeding can lead to obesity and joint problems, while underfeeding can stunt growth. Ensure the food is formulated for the puppy's life stage and breed size.
  3. Overall Health: Underlying health conditions, parasites (like worms), or chronic illnesses can significantly impact growth rate and final adult weight. Regular veterinary check-ups are essential.
  4. Exercise and Activity Level: While puppies need exercise, excessive strenuous activity before growth plates close can be detrimental. Moderate, age-appropriate activity supports healthy development.
  5. Spay/Neuter Timing: Some studies suggest that early spaying or neutering might influence growth plate closure and potentially lead to slightly taller, leaner dogs, although the impact on final weight is debated and often minor.
  6. Environmental Factors: Stress, housing conditions, and access to resources can subtly influence growth. A stable, nurturing environment supports healthy development.
  7. Metabolism: Individual puppies have different metabolic rates, affecting how efficiently they convert food into energy and tissue. This is a biological factor beyond simple averages.
  8. Vaccination and Deworming Schedule: Ensuring a puppy is up-to-date on necessary veterinary care prevents health setbacks that could impede growth.

Frequently Asked Questions (FAQ)

Q1: How accurate is the AKC male puppy weight calculator?
It provides an estimate based on breed standards and typical growth curves. Accuracy varies; it's a guideline, not a definitive prediction. Genetics, diet, and health are major influences.
Q2: My puppy is much heavier than the calculator predicts. Should I worry?
It depends on the breed and age. For large breeds, being slightly heavier early on might be normal. However, if significantly above average, consult your vet to rule out overfeeding or health issues.
Q3: My puppy is lighter than predicted. Is this bad?
Not necessarily. Some puppies are late bloomers. Ensure they are receiving adequate nutrition and are healthy. Monitor their growth curve; if they start gaining steadily, they'll likely be fine. A vet check is recommended if concerned.
Q4: Can I use this calculator for female puppies?
This specific calculator is optimized for male puppies, using male adult weight averages. Female puppies typically mature to a lower adult weight. You would need a separate calculation or a calculator specifically designed for females.
Q5: What if my puppy is a mixed breed?
Mixed breeds are much harder to predict. You can try entering the average adult weights of the breeds that make up the mix, but the result will be less reliable. Observing the puppy's current growth and referencing its parents' sizes (if known) might be more helpful.
Q6: How often should I weigh my puppy?
For young puppies (under 6 months), weighing weekly or bi-weekly can help track their growth. After 6 months, monthly weigh-ins are often sufficient until they reach maturity. Consistency is key.
Q7: Does the AKC registry directly influence these weight calculations?
The AKC provides breed standards, which include typical adult weight ranges and descriptions. This calculator uses those standards as a baseline for averages. The AKC registry itself doesn't perform calculations but defines the breed characteristics used.
Q8: How does diet impact the predicted weight?
Diet is crucial. A high-quality diet matched to the puppy's age and size category supports healthy growth toward the predicted weight. Overfeeding can push the puppy above the estimate, while poor nutrition could lead to it falling short.

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var breedData = { "labrador_retriever": {"avg": 70, "low": 65, "high": 80}, "german_shepherd": {"avg": 80, "low": 70, "high": 90}, "golden_retriever": {"avg": 70, "low": 60, "high": 75}, "poodle_standard": {"avg": 65, "low": 55, "high": 70}, "bulldog": {"avg": 50, "low": 45, "high": 55}, "beagle": {"avg": 25, "low": 20, "high": 30}, "dachshund_standard": {"avg": 32, "low": 28, "high": 35}, "rottweiler": {"avg": 110, "low": 95, "high": 130}, "siberian_husky": {"avg": 55, "low": 45, "high": 60}, "boxer": {"avg": 70, "low": 60, "high": 80} }; var typicalGrowthWeeks = { "labrador_retriever": 70, "german_shepherd": 72, "golden_retriever": 70, "poodle_standard": 65, "bulldog": 60, "beagle": 50, "dachshund_standard": 55, "rottweiler": 78, "siberian_husky": 65, "boxer": 70 }; var chartInstance = null; function updateBreedAverages() { var breedSelect = document.getElementById("breed"); var selectedBreed = breedSelect.value; var customWeightGroup = document.getElementById("maleAdultAvgWeightGroup"); var customWeightLowGroup = document.getElementById("maleAdultAvgWeightLowGroup"); var customWeightHighGroup = document.getElementById("maleAdultAvgWeightHighGroup"); if (selectedBreed === "custom") { customWeightGroup.style.display = "flex"; customWeightLowGroup.style.display = "flex"; customWeightHighGroup.style.display = "flex"; // Clear previous values if custom is selected document.getElementById("maleAdultAvgWeight").value = ""; document.getElementById("maleAdultAvgWeightLow").value = ""; document.getElementById("maleAdultAvgWeightHigh").value = ""; document.getElementById("breedAssumption").textContent = "Breed: Custom / Other"; document.getElementById("avgWeightAssumption").textContent = "Average Adult Male Weight: — lbs"; } else { customWeightGroup.style.display = "none"; customWeightLowGroup.style.display = "none"; customWeightHighGroup.style.display = "none"; var data = breedData[selectedBreed]; if (data) { document.getElementById("maleAdultAvgWeight").value = data.avg; document.getElementById("maleAdultAvgWeightLow").value = data.low; document.getElementById("maleAdultAvgWeightHigh").value = data.high; document.getElementById("breedAssumption").textContent = "Breed: " + breedSelect.options[breedSelect.selectedIndex].text; document.getElementById("avgWeightAssumption").textContent = "Average Adult Male Weight: " + data.avg + " lbs"; } else { // Fallback for safety, though 'custom' should cover it document.getElementById("maleAdultAvgWeight").value = ""; document.getElementById("maleAdultAvgWeightLow").value = ""; document.getElementById("maleAdultAvgWeightHigh").value = ""; document.getElementById("breedAssumption").textContent = "Breed: Unknown"; document.getElementById("avgWeightAssumption").textContent = "Average Adult Male Weight: — lbs"; } } calculateWeight(); // Recalculate on breed change } function validateInput(id, errorId, min, max, isRequired = true) { var input = document.getElementById(id); var errorElement = document.getElementById(errorId); var value = parseFloat(input.value); var isValid = true; errorElement.textContent = ""; // Clear previous error if (isRequired && (input.value === "" || isNaN(value))) { errorElement.textContent = "This field is required."; isValid = false; } else if (!isNaN(value)) { if (value max) { // errorElement.textContent = "Value exceeds maximum."; // Optional: too restrictive for growth charts // isValid = false; } } input.style.borderColor = isValid ? "" : "var(–error-color)"; return isValid; } function calculateWeight() { var currentWeight = parseFloat(document.getElementById("currentWeight").value); var currentAgeWeeks = parseFloat(document.getElementById("currentAgeWeeks").value); var breedSelect = document.getElementById("breed"); var selectedBreed = breedSelect.value; var avgAdultWeightInput = document.getElementById("maleAdultAvgWeight"); var avgAdultWeightLowInput = document.getElementById("maleAdultAvgWeightLow"); var avgAdultWeightHighInput = document.getElementById("maleAdultAvgWeightHigh"); var resultDiv = document.getElementById("result"); var estimatedAdultWeight = document.getElementById("estimatedAdultWeight"); var weightAtHalfway = document.getElementById("weightAtHalfway"); var expectedGainPerWeek = document.getElementById("expectedGainPerWeek"); var growthFactor = document.getElementById("growthFactor"); // Clear previous errors and styles document.getElementById("currentWeightError").textContent = ""; document.getElementById("currentAgeWeeksError").textContent = ""; document.getElementById("maleAdultAvgWeightError").textContent = ""; document.getElementById("maleAdultAvgWeightLowError").textContent = ""; document.getElementById("maleAdultAvgWeightHighError").textContent = ""; // Validation var validWeight = validateInput("currentWeight", "currentWeightError", 0); var validAge = validateInput("currentAgeWeeks", "currentAgeWeeksError", 0); var avgAdultWeight = parseFloat(avgAdultWeightInput.value); var avgAdultWeightLow = parseFloat(avgAdultWeightLowInput.value); var avgAdultWeightHigh = parseFloat(avgAdultWeightHighInput.value); if (selectedBreed === "custom") { var validAvgWeight = validateInput("maleAdultAvgWeight", "maleAdultAvgWeightError", 0); var validAvgWeightLow = validateInput("maleAdultAvgWeightLow", "maleAdultAvgWeightLowError", 0); var validAvgWeightHigh = validateInput("maleAdultAvgWeightHigh", "maleAdultAvgWeightHighError", 0); if (!validAvgWeight || !validAvgWeightLow || !validAvgWeightHigh) { return; } if(avgAdultWeightLow >= avgAdultWeight || avgAdultWeightHigh = avgAdultWeightHigh) { document.getElementById("maleAdultAvgWeightLowError").textContent = "Invalid range."; document.getElementById("maleAdultAvgWeightHighError").textContent = "Invalid range."; return; } } else { var data = breedData[selectedBreed]; if (!data) { document.getElementById("breedError").textContent = "Breed data not found."; return; } avgAdultWeight = data.avg; avgAdultWeightLow = data.low; avgAdultWeightHigh = data.high; document.getElementById("maleAdultAvgWeight").value = avgAdultWeight; // Ensure display is updated document.getElementById("maleAdultAvgWeightLow").value = avgAdultWeightLow; document.getElementById("maleAdultAvgWeightHigh").value = avgAdultWeightHigh; } if (!validWeight || !validAge) { resultDiv.style.display = "none"; return; } // — Calculation Logic — var estimatedFinalWeight = avgAdultWeight; // Default to average if calculation fails or is too simple var growthFactorValue = currentWeight / avgAdultWeight; var growthFactorText = growthFactorValue.toFixed(3); var weightAt6Months = avgAdultWeight * 0.55; // Rough estimate: ~55% at 26 weeks var weeksToMaturity = 78; // Default weeks until maturity (approx 18 months) var typicalBreedWeeks = typicalGrowthWeeks[selectedBreed]; if (typicalBreedWeeks) { // Estimate weeks remaining based on breed maturity data vs current age weeksToMaturity = typicalBreedWeeks; // Using the defined max weeks for the breed as a rough upper bound } var weeksRemaining = weeksToMaturity – currentAgeWeeks; if (currentAgeWeeks 0) { // Simple linear extrapolation attempt if puppy is young var weightGainSoFar = currentWeight – (avgAdultWeight * 0.15); // Estimate weight at ~8 weeks as ~15% of adult if (currentAgeWeeks > 8) { var weeksGrew = currentAgeWeeks – 8; var avgGainPerWeek = weightGainSoFar / weeksGrew; estimatedFinalWeight = currentWeight + (avgGainPerWeek * weeksRemaining); } else { // For very young puppies, use a default growth rate projection var defaultWeeklyGain = avgAdultWeight * 0.03; // Approx 3% per week estimatedFinalWeight = currentWeight + (defaultWeeklyGain * weeksRemaining); } // Clamp the estimation within the breed's range if it goes wildly off if (estimatedFinalWeight avgAdultWeightHigh) estimatedFinalWeight = avgAdultWeightHigh – (avgAdultWeightHigh – avgAdultWeight) * 0.2; // Adjust slightly if too high } else if (currentAgeWeeks >= weeksToMaturity) { estimatedFinalWeight = currentWeight; // Assume near final weight if past maturity weeksRemaining = 0; } // Ensure final weight is within a reasonable bound of the average range estimatedFinalWeight = Math.max(avgAdultWeightLow * 0.8, Math.min(avgAdultWeightHigh * 1.2, estimatedFinalWeight)); var expectedGain = avgAdultWeight / (typicalBreedWeeks || 70); // Simplified gain estimation var projectedGainPerWeek = (estimatedFinalWeight – currentWeight) / (weeksRemaining > 0 ? weeksRemaining : 1); // Refine weight at 6 months based on projected final weight if (currentAgeWeeks avgAdultWeight) weightAt6Months = avgAdultWeight * 0.8; // Cap 6 month weight } else { weightAt6Months = currentWeight; // If older than 6 months, current weight is relevant } // Display Results estimatedAdultWeight.textContent = estimatedFinalWeight.toFixed(1); weightAtHalfway.textContent = "Estimated Weight at 6 Months: " + weightAt6Months.toFixed(1) + " lbs"; expectedGainPerWeek.textContent = "Projected Gain Per Week (approx): " + (projectedGainPerWeek > 0 ? projectedGainPerWeek.toFixed(2) : "N/A") + " lbs"; growthFactor.textContent = "Growth Factor (Current/Avg Adult): " + growthFactorText; resultDiv.style.display = "block"; updateChart(currentWeight, currentAgeWeeks, estimatedFinalWeight, avgAdultWeightLow, avgAdultWeightHigh); } function resetCalculator() { document.getElementById("breed").value = "labrador_retriever"; document.getElementById("currentWeight").value = ""; document.getElementById("currentAgeWeeks").value = ""; document.getElementById("maleAdultAvgWeight").value = ""; document.getElementById("maleAdultAvgWeightLow").value = ""; document.getElementById("maleAdultAvgWeightHigh").value = ""; document.getElementById("result").style.display = "none"; document.getElementById("result").textContent = ""; // Clear results content // Clear error messages var errorElements = document.querySelectorAll('.error-message'); for(var i = 0; i < errorElements.length; i++) { errorElements[i].textContent = ''; } // Reset input borders var inputs = document.querySelectorAll('.input-group input[type="number"], .input-group select'); for(var i = 0; i < inputs.length; i++) { inputs[i].style.borderColor = ""; } updateBreedAverages(); // Reset breed defaults and hide custom fields if needed if (chartInstance) { chartInstance.destroy(); chartInstance = null; } var canvas = document.getElementById('growthChart'); var ctx = canvas.getContext('2d'); ctx.clearRect(0, 0, canvas.width, canvas.height); } function copyResults() { var estimatedWeight = document.getElementById("estimatedAdultWeight").textContent; var weightHalfway = document.getElementById("weightAtHalfway").textContent; var expectedGain = document.getElementById("expectedGainPerWeek").textContent; var growthFactorText = document.getElementById("growthFactor").textContent; var breedAssumption = document.getElementById("breedAssumption").textContent; var avgWeightAssumption = document.getElementById("avgWeightAssumption").textContent; if (estimatedWeight === "–") return; var textToCopy = "AKC Male Puppy Weight Estimation:\n\n"; textToCopy += "Breed: " + breedAssumption.replace("Breed: ", "") + "\n"; textToCopy += avgWeightAssumption + "\n\n"; textToCopy += "Primary Result:\n" + estimatedWeight + "\n\n"; textToCopy += "Details:\n" + weightHalfway + "\n"; textToCopy += expectedGain + "\n"; textToCopy += growthFactorText + "\n\n"; textToCopy += "Note: This is an estimate. Individual growth may vary."; // Use a temporary textarea to copy text var tempTextArea = document.createElement("textarea"); tempTextArea.value = textToCopy; document.body.appendChild(tempTextArea); tempTextArea.select(); try { document.execCommand("copy"); alert("Results copied to clipboard!"); } catch (e) { alert("Failed to copy results. Please copy manually."); } document.body.removeChild(tempTextArea); } function updateChart(currentWeight, currentAgeWeeks, estimatedFinalWeight, avgLow, avgHigh) { var canvas = document.getElementById('growthChart'); var ctx = canvas.getContext('2d'); // Destroy previous chart instance if it exists if (chartInstance) { chartInstance.destroy(); } // Define chart dimensions and scaling var chartWidth = canvas.parentElement.clientWidth * 0.95; // Responsive width var chartHeight = 300; canvas.width = chartWidth; canvas.height = chartHeight; var maxAgeToDisplay = 78; // Approx 18 months for large breeds var maxWeight = Math.max(avgHigh, estimatedFinalWeight) * 1.1; // Ensure max weight accommodates estimates and range var ageScale = chartWidth / maxAgeToDisplay; var weightScale = chartHeight / maxWeight; // Data points for the chart var labels = []; var currentWeightData = []; var estimatedWeightData = []; var avgLowData = []; var avgHighData = []; // Generate points up to maxAgeToDisplay or slightly beyond for (var week = 0; week <= maxAgeToDisplay + 10; week++) { labels.push(week); // Current Weight Data (only before current age) if (week = 8 && currentAgeWeeks >= 8) { initialWeight = (currentWeight – (0.15 * avgHigh)) / (currentAgeWeeks – 8) * (week – 8) + (0.15 * avgHigh); // Estimate based on current growth phase initialWeight = Math.max(initialWeight, 2); // Ensure minimum starting weight } else if (week currentAgeWeeks && week maxAgeToDisplay) { projectedWeight = estimatedFinalWeight; // Keep final weight constant after maturity } else { projectedWeight = null; // Before current age } estimatedWeightData.push(projectedWeight); // Average Breed Range Data avgLowData.push(avgLow); avgHighData.push(avgHigh); } // Draw the chart using Canvas API ctx.clearRect(0, 0, chartWidth, chartHeight); // Draw Grid Lines and Labels ctx.strokeStyle = '#e0e0e0′; ctx.lineWidth = 0.5; ctx.font = '10px Arial'; ctx.fillStyle = '#666'; // Horizontal lines for weight var numWeightLines = 5; for (var i = 0; i <= numWeightLines; i++) { var y = chartHeight – (i * (chartHeight / numWeightLines)); var weightLabel = Math.round((i / numWeightLines) * maxWeight); ctx.fillText(weightLabel + ' lbs', 5, y – 5); ctx.beginPath(); ctx.moveTo(40, y); ctx.lineTo(chartWidth, y); ctx.stroke(); } // Vertical lines for age var numAgeLines = 6; for (var i = 0; i chartWidth) x = chartWidth; var ageLabel = Math.round((i / numAgeLines) * maxAgeToDisplay); ctx.fillText(ageLabel + ' wks', x – 20, chartHeight – 5); ctx.beginPath(); ctx.moveTo(x, chartHeight); ctx.lineTo(x, 20); // Stop lines before top ctx.stroke(); } // Draw Data Series ctx.lineWidth = 2; // Average Low Line ctx.strokeStyle = '#ffc107'; // Warning yellow ctx.beginPath(); for (var i = 0; i < avgLowData.length; i++) { if (avgLowData[i] !== null) { var x = 40 + (i * ageScale); var y = chartHeight – (avgLowData[i] * weightScale); if (i === 0) ctx.moveTo(x, y); else ctx.lineTo(x, y); } } ctx.stroke(); // Average High Line ctx.strokeStyle = '#dc3545'; // Danger red ctx.beginPath(); for (var i = 0; i < avgHighData.length; i++) { if (avgHighData[i] !== null) { var x = 40 + (i * ageScale); var y = chartHeight – (avgHighData[i] * weightScale); if (i === 0) ctx.moveTo(x, y); else ctx.lineTo(x, y); } } ctx.stroke(); // Estimated Final Weight Line ctx.strokeStyle = 'var(–primary-color)'; // Primary blue ctx.beginPath(); for (var i = 0; i 0 && estimatedWeightData[i-1] === null) { ctx.moveTo(x, y); // Start new line segment } else if (i === 0) { ctx.moveTo(x,y); } else { ctx.lineTo(x, y); } } } ctx.stroke(); // Current Weight Line (as a point or short line) ctx.fillStyle = 'var(–success-color)'; // Success green ctx.beginPath(); var currentX = 40 + (currentAgeWeeks * ageScale); var currentY = chartHeight – (currentWeight * weightScale); if (currentX 20 && currentY < chartHeight-20) { // Ensure point is within bounds ctx.arc(currentX, currentY, 5, 0, Math.PI * 2); // Draw a circle for current point ctx.fill(); } // Add Legend manually ctx.font = '12px Arial'; ctx.fillStyle = '#333'; var legendY = 20; var legendSpacing = 100; ctx.fillStyle = 'var(–success-color)'; ctx.fillRect(5, legendY, 20, 10); ctx.fillStyle = '#333'; ctx.fillText('Current Weight', 35, legendY + 10); legendY += 20; ctx.fillStyle = '#ffc107'; ctx.fillRect(5, legendY, 20, 10); ctx.fillStyle = '#333'; ctx.fillText('Avg Low Range', 35, legendY + 10); legendY += 20; ctx.fillStyle = '#dc3545'; ctx.fillRect(5, legendY, 20, 10); ctx.fillStyle = '#333'; ctx.fillText('Avg High Range', 35, legendY + 10); legendY += 20; ctx.fillStyle = 'var(–primary-color)'; ctx.fillRect(5, legendY, 20, 10); ctx.fillStyle = '#333'; ctx.fillText('Estimated Final', 35, legendY + 10); // Store chart instance for potential destruction later // Note: Chart.js library is not used, this is just a placeholder comment // chartInstance = new Chart(…); } // Initialize on load window.onload = function() { updateBreedAverages(); var initialCalcButton = document.querySelector('.btn-primary'); if (initialCalcButton) { initialCalcButton.click(); // Trigger initial calculation if inputs have defaults or are set } }; // Add simple FAQ toggle functionality var faqQuestions = document.querySelectorAll('.faq-question'); for(var i = 0; i < faqQuestions.length; i++) { faqQuestions[i].onclick = function() { var answer = this.nextElementSibling; if (answer.style.display === "block") { answer.style.display = "none"; } else { answer.style.display = "block"; } } }

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