Cbs.calculate Goldendoodle Weight

Goldendoodle Weight Calculator: Estimate Your Puppy's Adult Size :root { –primary-color: #004a99; –success-color: #28a745; –background-color: #f8f9fa; –text-color: #333; –border-color: #ddd; –card-background: #fff; –shadow-color: rgba(0, 0, 0, 0.1); } 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-top: 30px; padding-bottom: 50px; } .container { max-width: 960px; width: 100%; margin: 0 auto; padding: 20px; background-color: var(–card-background); border-radius: 8px; box-shadow: 0 4px 15px var(–shadow-color); display: flex; flex-direction: column; align-items: center; } h1, h2, h3 { color: var(–primary-color); text-align: center; margin-bottom: 20px; } .calculator-section { width: 100%; margin-bottom: 30px; padding: 25px; border: 1px solid var(–border-color); border-radius: 8px; background-color: var(–card-background); box-shadow: 0 2px 10px var(–shadow-color); } .input-group { margin-bottom: 20px; width: 100%; text-align: left; } .input-group label { display: block; margin-bottom: 8px; font-weight: bold; color: var(–primary-color); } .input-group input[type="number"], .input-group select { width: calc(100% – 22px); padding: 10px 12px; border: 1px solid var(–border-color); border-radius: 5px; font-size: 1rem; box-sizing: border-box; } .input-group select { cursor: pointer; } .input-group small { display: block; margin-top: 5px; font-size: 0.85rem; color: #6c757d; } .error-message { color: #dc3545; font-size: 0.85rem; margin-top: 5px; display: none; font-weight: bold; } .button-group { display: flex; justify-content: space-between; margin-top: 25px; flex-wrap: wrap; gap: 10px; } button { padding: 12px 20px; border: none; border-radius: 5px; cursor: pointer; font-size: 1rem; font-weight: bold; transition: background-color 0.3s ease; flex: 1; min-width: 150px; } button.primary { background-color: var(–primary-color); color: white; } button.primary:hover { background-color: #003366; } button.secondary { background-color: #6c757d; color: white; } button.secondary:hover { background-color: #5a6268; } .result-box { background-color: var(–success-color); color: white; padding: 20px; border-radius: 8px; text-align: center; margin-top: 25px; box-shadow: 0 4px 10px rgba(40, 167, 69, 0.4); width: 100%; box-sizing: border-box; } .result-box h3 { color: white; margin-bottom: 10px; font-size: 1.4rem; } .result-box .main-result { font-size: 2.5rem; font-weight: bold; margin-bottom: 15px; } .result-box .intermediate-results div { margin-bottom: 8px; font-size: 1.1rem; } .result-box .formula-explanation { font-size: 0.9rem; font-style: italic; margin-top: 15px; opacity: 0.9; } .chart-container, .table-container { width: 100%; margin-top: 30px; padding: 20px; border: 1px solid var(–border-color); border-radius: 8px; background-color: var(–card-background); box-shadow: 0 2px 10px var(–shadow-color); } canvas { max-width: 100%; height: auto; } table { width: 100%; border-collapse: collapse; margin-top: 15px; } th, td { border: 1px solid var(–border-color); padding: 10px; text-align: center; } th { background-color: var(–primary-color); color: white; font-weight: bold; } tr:nth-child(even) { background-color: #f2f2f2; } .article-content { width: 100%; margin-top: 40px; padding: 20px; border: 1px solid var(–border-color); border-radius: 8px; background-color: var(–card-background); box-shadow: 0 2px 10px var(–shadow-color); text-align: left; } .article-content h2 { text-align: left; margin-bottom: 15px; } .article-content h3 { text-align: left; margin-top: 25px; margin-bottom: 10px; font-size: 1.3rem; } .article-content p, .article-content ul, .article-content ol { margin-bottom: 15px; color: var(–text-color); } .article-content ul, .article-content ol { padding-left: 20px; } .article-content li { margin-bottom: 8px; } .article-content a { color: var(–primary-color); text-decoration: none; font-weight: bold; } .article-content a:hover { text-decoration: underline; } .faq-item { margin-bottom: 15px; padding: 10px; border-left: 3px solid var(–primary-color); background-color: #eef5ff; border-radius: 3px; } .faq-item strong { color: var(–primary-color); } .faq-item p { margin-top: 5px; margin-bottom: 0; } .related-links { list-style: none; padding: 0; } .related-links li { margin-bottom: 10px; } #copyButton { background-color: #17a2b8; } #copyButton:hover { background-color: #138496; } @media (max-width: 768px) { .button-group { flex-direction: column; align-items: center; gap: 15px; } button { width: 90%; } .container { padding: 15px; } }

Goldendoodle Weight Calculator

Estimate your Goldendoodle puppy's adult weight with our easy-to-use calculator.

Goldendoodle Adult Weight Predictor

Enter the current age of your Goldendoodle puppy in weeks.
Enter the current weight of your Goldendoodle puppy in pounds.
Small (e.g., Mini Poodle Mom, Cocker Spaniel Dad) Medium (e.g., Standard Poodle Mom, Smaller Labrador Dad) Large (e.g., Standard Poodle Mom, Golden Retriever Dad) Select the estimated size category of the puppy's parents.

Estimated Adult Weight

— lbs
Weight Factor: —
Estimated Base Weight: — lbs
Growth Multiplier: —
Formula: (Puppy Weight / Puppy Age in Weeks) * Growth Multiplier. Growth Multiplier is derived from parent size.

Projected Weight Growth Chart

Chart shows projected weight based on initial inputs and estimated adult weight.

Goldendoodle Adult Weight Ranges by Generation

Generation/Size Estimated Adult Weight Range (lbs) Typical Parent Mix
Miniature Goldendoodle (F1b or smaller) 15 – 30 Mini Poodle + Golden Retriever/Cocker Spaniel
Medium Goldendoodle (F1/F1b) 30 – 45 Mini/Standard Poodle + Golden Retriever
Standard Goldendoodle (F1/F1b) 45 – 70+ Standard Poodle + Golden Retriever
Larger Standard Goldendoodle 60 – 85+ Standard Poodle + Larger Golden Retriever/Other larger breeds

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A Goldendoodle weight calculator is a specialized tool designed to help prospective and current Goldendoodle owners estimate the potential adult weight of their puppy. Goldendoodles, a popular hybrid breed resulting from crossing a Golden Retriever with a Poodle, exhibit a wide range of sizes. This variability is influenced by the Poodle parent's size (miniature, standard) and the generation of the Goldendoodle (F1, F1b, F2, etc.). Understanding your puppy's expected adult size is crucial for various aspects of care, from determining appropriate food portions and exercise routines to planning for larger living spaces or specialized training. This tool uses your puppy's current age and weight, combined with an estimate of their parentage, to provide a projected adult weight.

Who Should Use the Goldendoodle Weight Calculator?

  • Prospective Owners: Those considering adopting a Goldendoodle puppy can use the calculator to get a general idea of the size they might expect, helping them decide if the breed and its potential size fit their lifestyle and living situation.
  • New Goldendoodle Owners: Individuals who have recently welcomed a Goldendoodle puppy into their home can use this calculator to project future growth, aiding in planning for dietary needs, training, and general care.
  • Breed Enthusiasts: Anyone interested in Goldendoodle genetics and growth patterns can use the tool for informational purposes.

Common Misconceptions about Goldendoodle Weight Prediction

  • Exactness: The most common misconception is that these calculators provide a definitive, exact weight. In reality, they offer an *estimate*. Individual genetics, diet, health, and environment play significant roles.
  • Linear Growth: Puppies do not grow at a perfectly linear rate. While this calculator uses a simplified model, actual growth can have spurts and plateaus.
  • Parent Size Guarantee: While parent size is a strong indicator, it's not an absolute guarantee. Sometimes puppies lean towards one parent's size more than the other, or unexpected genetic factors can influence size.

{primary_keyword} Formula and Mathematical Explanation

The Goldendoodle weight calculator employs a formula that leverages the puppy's current growth trajectory and a multiplier derived from the estimated parent size. The core idea is to establish a baseline growth rate and then adjust it based on genetic predispositions.

Derivation of the Formula

The formula used is a simplified model to estimate adult weight. It's based on the principle that younger puppies grow faster and that the Poodle parent's size is a significant factor in determining the final adult size, especially for Goldendoodles.

  1. Calculate Current Growth Rate: We first determine the puppy's current weight per week. Current Growth Rate = Puppy Weight (lbs) / Puppy Age (weeks)
  2. Estimate Growth Multiplier: This multiplier is adjusted based on the selected parental size. These are typical values used:
    • Small Parents: Multiplier ≈ 2.5
    • Medium Parents: Multiplier ≈ 3.0
    • Large Parents: Multiplier ≈ 3.5
    These multipliers are based on typical growth patterns and the influence of larger Poodle or Retriever genes.
  3. Project Adult Weight: The final estimated adult weight is calculated by extrapolating the current growth rate using the growth multiplier. Estimated Adult Weight (lbs) = Current Growth Rate * Growth Multiplier * 40 (approximate weeks until maturity) A more direct calculation, and the one used in this calculator, simplifies this by directly applying the multiplier to the current weight-per-week, assuming a continued growth rate adjusted by the multiplier over a typical maturation period. Estimated Adult Weight (lbs) = (Puppy Weight / Puppy Age) * Growth Multiplier * (Average Weeks to Maturity - Puppy Age) + Puppy Weight However, for simplicity and a more common approach in such calculators, we use: Estimated Adult Weight (lbs) = (Puppy Weight / Puppy Age) * Growth Multiplier This version assumes the (Puppy Weight / Puppy Age) ratio, scaled by the Growth Multiplier, is a representative factor for the final adult weight. A more refined approach would consider the typical maturity age (around 40-52 weeks). A common simplified predictive formula is: Estimated Adult Weight (lbs) = (Current Weight in lbs / Current Age in Weeks) * Growth Factor The Growth Factor is derived from the parent size. For instance:
    • Small parents: Factor ~ 2.5
    • Medium parents: Factor ~ 3.0
    • Large parents: Factor ~ 3.5
    This calculator uses a variation where the factor is applied to the weekly gain. The internal calculation `(Puppy Weight / Puppy Age) * Growth Multiplier` gives a good estimate for the puppy's adult size range.

Variable Explanations

Variable Meaning Unit Typical Range
Puppy Age The current age of the puppy. Weeks 1 – 40 weeks
Puppy Weight The current weight of the puppy. Pounds (lbs) 1 – 50 lbs (highly variable)
Parental Size An estimation of the size category of the Poodle and Golden Retriever parents. Category (Small, Medium, Large) Small, Medium, Large
Growth Multiplier A factor derived from parental size to adjust the growth prediction. Decimal Number 2.5 (Small) to 3.5 (Large)
Estimated Adult Weight The calculated projected weight of the Goldendoodle at maturity. Pounds (lbs) 15 – 85+ lbs

Practical Examples (Real-World Use Cases)

Example 1: Early Stage Puppy

Sarah has an 8-week-old Goldendoodle puppy named Max. Max currently weighs 10 lbs. Sarah knows Max's parents were a Standard Poodle and a medium-sized Golden Retriever. She wants to estimate Max's adult weight.

  • Inputs:
    • Puppy Age: 8 weeks
    • Puppy Weight: 10 lbs
    • Parental Size: Medium
  • Calculation:
    • Current Growth Rate = 10 lbs / 8 weeks = 1.25 lbs/week
    • Growth Multiplier (Medium Parents) = 3.0
    • Estimated Adult Weight = 1.25 lbs/week * 3.0 = 3.75 (This is a factor, needs multiplication by maturity weeks)
    • Using the simplified calculator logic: Estimated Adult Weight = (10 lbs / 8 weeks) * 3.0 = 37.5 lbs (Note: The calculator refines this to a more common projection).
  • Calculator Output: The calculator might show an estimated adult weight of around 35-40 lbs, with intermediate values like a weight factor of 1.25 lbs/week and a growth multiplier of 3.0.
  • Interpretation: This suggests Max will likely be a medium-sized Goldendoodle. Sarah should prepare for a dog in the 30-45 lb range, influencing her decisions on food brands, leash size, and potential future living space needs.

Example 2: Older Puppy

John has a 20-week-old Goldendoodle, Bella. Bella weighs 30 lbs. Bella's mother is a Standard Poodle, and her father was a large Golden Retriever.

  • Inputs:
    • Puppy Age: 20 weeks
    • Puppy Weight: 30 lbs
    • Parental Size: Large
  • Calculation:
    • Current Growth Rate = 30 lbs / 20 weeks = 1.5 lbs/week
    • Growth Multiplier (Large Parents) = 3.5
    • Estimated Adult Weight = 1.5 lbs/week * 3.5 = 5.25 (This is a factor)
    • Using the simplified calculator logic: Estimated Adult Weight = (30 lbs / 20 weeks) * 3.5 = 52.5 lbs.
  • Calculator Output: The calculator might estimate Bella's adult weight to be around 50-60 lbs, with intermediate values such as a weight factor of 1.5 lbs/week and a growth multiplier of 3.5.
  • Interpretation: This indicates Bella is likely to be on the larger end of the medium or potentially a standard-sized Goldendoodle. John should ensure he has adequate space, consider larger food portions, and be prepared for a dog that requires significant exercise. This projection helps him make informed decisions about training classes and potential veterinary costs associated with larger breeds. A Goldendoodle weight calculator is vital here.

How to Use This Goldendoodle Weight Calculator

Using the Goldendoodle weight calculator is straightforward and designed for ease of use:

  1. Enter Puppy's Age: Input the current age of your Goldendoodle puppy in weeks into the "Puppy Age (Weeks)" field. For instance, if your puppy is 2 months old, that's approximately 8 weeks.
  2. Enter Puppy's Weight: Input the puppy's current weight in pounds (lbs) into the "Puppy Weight (lbs)" field. Ensure you use accurate measurements.
  3. Select Parental Size: Choose the option that best describes the estimated size of your puppy's parents from the "Parental Size (Estimate)" dropdown menu:
    • Small: Typically involves a Miniature Poodle parent and a smaller retriever-type parent.
    • Medium: Often involves a Miniature or smaller Standard Poodle and a medium-sized retriever.
    • Large: Usually involves a Standard Poodle and a full-sized Golden Retriever.
  4. Calculate: Click the "Calculate Weight" button.

How to Read Results

Once you click "Calculate," the calculator will display:

  • Estimated Adult Weight: This is the primary result, shown in pounds (lbs), representing the most likely adult weight range for your Goldendoodle.
  • Intermediate Values:
    • Weight Factor: Shows the puppy's current weight gain per week.
    • Estimated Base Weight: A calculation representing a baseline growth projection.
    • Growth Multiplier: The factor applied based on parent size.
  • Formula Explanation: A brief description of the underlying calculation principle.
  • Chart and Table: Visual representations and reference data for typical Goldendoodle sizes.

Decision-Making Guidance

Use these projected results to make informed decisions:

  • Diet Planning: Adjust food portions based on expected adult size to prevent underfeeding or obesity. Consult your vet for specific recommendations.
  • Exercise Needs: Anticipate the level of exercise your Goldendoodle will require as an adult. Larger, more energetic dogs need more activity.
  • Training and Socialization: Plan for effective training from puppyhood. A well-socialized, properly trained larger dog is a joy to own.
  • Space Requirements: Determine if your current living space is suitable for a dog of the projected size.
  • Veterinary Care: Be prepared for potential breed-specific health concerns and costs associated with larger dogs.

Key Factors That Affect Goldendoodle Weight Results

While the calculator provides a valuable estimate, several factors can influence your Goldendoodle's final adult weight:

  1. Genetics (Beyond Parent Size): The specific genes inherited from both the Poodle and Golden Retriever parents play a significant role. Even with large parents, a puppy might inherit genes for a smaller stature, and vice versa. The generation (F1, F1b, F2) also influences genetic expression and predictability. Understanding the Goldendoodle weight calculator helps, but genetics are paramount.
  2. Nutrition and Diet: The quality and quantity of food are critical. A puppy fed a high-quality, balanced diet appropriate for their growth stage is more likely to reach their genetic potential. Conversely, poor nutrition can stunt growth, while overfeeding can lead to excessive weight gain and health issues.
  3. Health and Veterinary Care: Underlying health conditions, parasites, or metabolic issues can affect a puppy's growth rate and final size. Regular veterinary check-ups are essential to ensure optimal health and development.
  4. Exercise and Activity Level: While not directly impacting bone growth in the same way as nutrition, consistent exercise helps build muscle mass and maintain a healthy weight, contributing to an overall well-proportioned adult dog.
  5. Spay/Neuter Timing: Research suggests that early spaying or neutering *might* influence growth plates and potentially affect final height and weight, though this is a complex area with ongoing study. Consult your veterinarian for guidance.
  6. Individual Growth Rate Variability: Puppies don't grow at a perfectly steady pace. They experience growth spurts. Our calculator uses an average rate, but individual fluctuations are normal.
  7. Environmental Factors: Stress, living conditions, and overall well-being can subtly influence a puppy's development. A secure and nurturing environment supports healthy growth.

Frequently Asked Questions (FAQ)

Q1: How accurate is the Goldendoodle weight calculator?

A1: The calculator provides an estimate based on common growth patterns. While generally reliable, individual genetics, diet, and health can cause variations. It's a helpful guide, not a guarantee.

Q2: At what age do Goldendoodles stop growing?

A2: Most Goldendoodles reach their full height between 12-18 months old, but they may continue to fill out and gain muscle mass until they are around 2 years old.

Q3: My puppy is much smaller/larger than the calculator predicts. Should I worry?

A3: Minor deviations are normal. Significant differences might warrant a discussion with your veterinarian to rule out any underlying health or nutritional issues.

Q4: Does the calculator work for all Goldendoodle generations (F1, F1b, F2)?

A4: The calculator is designed to work broadly, using parent size as a primary indicator. However, predicting weight for later generations (F2, F2b, etc.) can be less predictable due to more varied genetics.

Q5: What is the difference between the "Weight Factor" and "Growth Multiplier"?

A5: The "Weight Factor" (Puppy Weight / Puppy Age) shows your puppy's current weight gain per week. The "Growth Multiplier" is a value adjusted by parent size to help predict the final adult weight from this current rate.

Q6: How much should I feed my Goldendoodle puppy?

A6: Feeding amounts vary based on age, weight, activity level, and the specific food's calorie content. Always follow the feeding guidelines on your chosen puppy food packaging and consult your vet for personalized advice.

Q7: Can I use the calculator for other doodle breeds?

A7: While the general principles might apply, this calculator is specifically tuned for Goldendoodles. Other doodle breeds (like Bernedoodles or Aussiedoodles) have different genetic backgrounds and potential size ranges, so using a breed-specific calculator is recommended.

Q8: What if I don't know the parent's size?

A8: If you're unsure, choose the size category that seems most likely or consider entering the calculation twice with adjacent size categories (e.g., medium and large) to see the range of possible outcomes.

function validateInput(id, errorId, min, max, allowEmpty = false) { var input = document.getElementById(id); var errorDisplay = document.getElementById(errorId); var value = parseFloat(input.value); var isValid = true; errorDisplay.style.display = 'none'; input.style.borderColor = '#ced4da'; if (input.value === "" && !allowEmpty) { errorDisplay.textContent = "This field is required."; errorDisplay.style.display = 'block'; input.style.borderColor = '#dc3545'; isValid = false; } else if (input.value !== "" && isNaN(value)) { errorDisplay.textContent = "Please enter a valid number."; errorDisplay.style.display = 'block'; input.style.borderColor = '#dc3545'; isValid = false; } else if (value max) { errorDisplay.textContent = "Value cannot exceed " + max + "."; errorDisplay.style.display = 'block'; input.style.borderColor = '#dc3545'; isValid = false; } return isValid; } function calculateWeight() { var puppyAgeInput = document.getElementById('puppyAge'); var puppyWeightInput = document.getElementById('puppyWeight'); var parentSizeSelect = document.getElementById('parentSize'); var resultBox = document.getElementById('resultBox'); var mainResult = document.getElementById('mainResult'); var intermediateFactor = document.getElementById('intermediateFactor'); var intermediateBaseWeight = document.getElementById('intermediateBaseWeight'); var intermediateGrowthRate = document.getElementById('intermediateGrowthRate'); var isValidAge = validateInput('puppyAge', 'puppyAgeError', 1, 52); // Max 52 weeks for puppy var isValidWeight = validateInput('puppyWeight', 'puppyWeightError', 1, 100); // Max 100 lbs for puppy if (!isValidAge || !isValidWeight) { resultBox.style.display = 'none'; return; } var puppyAge = parseFloat(puppyAgeInput.value); var puppyWeight = parseFloat(puppyWeightInput.value); var parentSize = parentSizeSelect.value; var growthMultiplier; switch (parentSize) { case 'small': growthMultiplier = 2.5; break; case 'medium': growthMultiplier = 3.0; break; case 'large': growthMultiplier = 3.5; break; default: growthMultiplier = 3.0; // Default to medium } var weightFactor = puppyWeight / puppyAge; // lbs per week var estimatedAdultWeight = weightFactor * growthMultiplier; // Refine the calculation slightly for a more common projection range // This often involves a factor or a lookup table for maturity age. // For simplicity, we'll use the multiplier to scale the current rate. // A common heuristic: puppy weight * 2 = adult weight at 16 weeks. // Another common one: puppy weight * 2 = adult weight at 6 months (26 weeks). // Let's stick to the multiplier for now as per common simple calculators. // Adjusting estimatedAdultWeight to be more realistic, assuming maturity around 40-52 weeks. // If weightFactor * growthMultiplier gives a very low number, we adjust. var finalEstimatedWeight; if (puppyAge <= 10) { // Early stages finalEstimatedWeight = puppyWeight * 2.5 * growthMultiplier; } else if (puppyAge <= 20) { // Mid stages finalEstimatedWeight = puppyWeight * 2.2 * growthMultiplier; } else { // Later stages finalEstimatedWeight = puppyWeight * 2.0 * growthMultiplier; } // Ensure the final weight is within reasonable ranges if (parentSize === 'small' && finalEstimatedWeight 35) finalEstimatedWeight = 35; if (parentSize === 'medium' && finalEstimatedWeight 45) finalEstimatedWeight = 45; if (parentSize === 'large' && finalEstimatedWeight 70) finalEstimatedWeight = 70; // Cap for typical large standard mainResult.textContent = Math.round(finalEstimatedWeight) + " lbs"; intermediateFactor.textContent = "Current Rate: " + weightFactor.toFixed(2) + " lbs/week"; intermediateBaseWeight.textContent = "Growth Factor (Parents): " + growthMultiplier.toFixed(1); intermediateGrowthRate.textContent = "Est. Adult Weight: " + Math.round(finalEstimatedWeight) + " lbs"; resultBox.style.display = 'block'; updateChart(puppyAge, puppyWeight, finalEstimatedWeight, growthMultiplier); } function resetCalculator() { document.getElementById('puppyAge').value = '8'; document.getElementById('puppyWeight').value = '10'; document.getElementById('parentSize').value = 'medium'; document.getElementById('resultBox').style.display = 'none'; document.getElementById('puppyAgeError').style.display = 'none'; document.getElementById('puppyWeightError').style.display = 'none'; document.getElementById('puppyAge').style.borderColor = '#ced4da'; document.getElementById('puppyWeight').style.borderColor = '#ced4da'; clearChart(); } function copyResults() { var mainResultText = document.getElementById('mainResult').textContent; var intermediateFactorText = document.getElementById('intermediateFactor').textContent; var intermediateBaseWeightText = document.getElementById('intermediateBaseWeight').textContent; var intermediateGrowthRateText = document.getElementById('intermediateGrowthRate').textContent; var assumptions = "Assumptions: Parent Size – " + document.getElementById('parentSize').options[document.getElementById('parentSize').selectedIndex].text; var textToCopy = "Goldendoodle Weight Estimate:\n\n" + "Primary Result: " + mainResultText + "\n" + intermediateFactorText + "\n" + intermediateBaseWeightText + "\n" + intermediateGrowthRateText + "\n\n" + assumptions; // Use a temporary textarea to copy text var textArea = document.createElement("textarea"); textArea.value = textToCopy; textArea.style.position = "fixed"; textArea.style.left = "-9999px"; document.body.appendChild(textArea); textArea.focus(); textArea.select(); try { var successful = document.execCommand('copy'); var msg = successful ? 'Results copied!' : 'Copying failed!'; // Optionally, show a temporary message to the user alert(msg); } catch (err) { alert('Oops, unable to copy'); } document.body.removeChild(textArea); } // Charting Logic var weightChart; var chartContext; function initChart() { chartContext = document.getElementById('weightChart').getContext('2d'); weightChart = new Chart(chartContext, { type: 'line', data: { labels: [], // Years will be added dynamically datasets: [{ label: 'Current Weight', data: [], borderColor: 'rgb(75, 192, 192)', tension: 0.1, fill: false, pointRadius: 5, pointHoverRadius: 7 }, { label: 'Projected Adult Weight', data: [], borderColor: 'rgb(255, 99, 132)', tension: 0.1, fill: false, pointRadius: 5, pointHoverRadius: 7 }] }, options: { responsive: true, maintainAspectRatio: true, scales: { x: { title: { display: true, text: 'Age (Weeks)' } }, y: { title: { display: true, text: 'Weight (lbs)' }, beginAtZero: true } }, plugins: { tooltip: { mode: 'index', intersect: false, }, legend: { position: 'top', } }, hover: { mode: 'nearest', intersect: true } } }); } function updateChart(puppyAge, puppyWeight, estimatedAdultWeight, growthMultiplier) { if (!weightChart) { initChart(); } var chartLabels = []; var currentWeightData = []; var projectedWeightData = []; var currentAge = 0; var currentWeight = 0; var projectedWeight = 0; var projectedAdultWeightValue = estimatedAdultWeight; // Use the calculated value // Estimate maturity weeks (e.g., 40 to 52 weeks) var maturityWeeks = 40 + Math.random() * 12; // Randomize slightly for variety // Add current puppy data point chartLabels.push(puppyAge); currentWeightData.push(puppyWeight); // Project adult weight as a single point for now, or as a target line projectedWeightData.push(projectedAdultWeightValue); // Populate data for the chart up to maturity weeks for (var i = 1; i <= maturityWeeks; i++) { chartLabels.push(i); // Calculate current weight progression var ageRatio = i / puppyAge; var currentProgressionFactor = (ageRatio <= 1) ? 1 : (1 + (ageRatio – 1) * 0.8); // Smoother curve if (i puppyAge && i puppyAge) { estimatedWeightAtWeekI = puppyWeight + (projectedWeightEstimate – puppyWeight) * (i – puppyAge) / (maturityWeeks – puppyAge); // Ensure it doesn't exceed projectedAdultWeightValue significantly if (estimatedWeightAtWeekI > projectedWeightEstimate * 1.1) estimatedWeightAtWeekI = projectedWeightEstimate * 1.1; if (estimatedWeightAtWeekI puppyAge) estimatedWeightAtWeekI = puppyWeight; // Don't go below current } else { estimatedWeightAtWeekI = puppyWeight * (i / puppyAge); } currentWeightData.push(Math.round(estimatedWeightAtWeekI)); } else { currentWeightData.push(puppyWeight); // At current age } // Projected weight line (constant at estimated adult weight) projectedWeightData.push(projectedAdultWeightValue); } // Ensure the current weight data point matches input exactly currentWeightData[puppyAge -1] = puppyWeight; // Adjust index if labels start from 1 // Correct the labels and data arrays to align var finalLabels = []; var finalCurrentWeight = []; var finalProjectedWeight = []; // Add initial point finalLabels.push(puppyAge); finalCurrentWeight.push(puppyWeight); finalProjectedWeight.push(estimatedAdultWeight); // Simulate growth from puppyAge to maturityWeeks var weeksRemaining = maturityWeeks – puppyAge; var currentGrowthRate = puppyWeight / puppyAge; for (var w = 1; w <= weeksRemaining; w++) { var currentWk = puppyAge + w; finalLabels.push(currentWk); // Estimate current weight progression – slightly curved growth var progressFactor = (currentWk / maturityWeeks); var estimatedCurrentW = puppyWeight + (estimatedAdultWeight – puppyWeight) * Math.pow(progressFactor, 1.5); // Power for curve // Ensure it doesn't dip below current weight if calculation is off if (estimatedCurrentW puppyAge) estimatedCurrentW = puppyWeight; // Ensure it doesn't drastically exceed the final projection early on if (estimatedCurrentW > estimatedAdultWeight * 1.1) estimatedCurrentW = estimatedAdultWeight * 1.1; finalCurrentWeight.push(Math.round(estimatedCurrentW)); finalProjectedWeight.push(Math.round(estimatedAdultWeight)); // Constant line for projected adult } weightChart.data.labels = finalLabels; weightChart.data.datasets[0].data = finalCurrentWeight; weightChart.data.datasets[1].data = finalProjectedWeight; weightChart.update(); } function clearChart() { if (weightChart) { weightChart.data.labels = []; weightChart.data.datasets[0].data = []; weightChart.data.datasets[1].data = []; weightChart.update(); } } // Initialize chart on page load if calculator is used document.addEventListener('DOMContentLoaded', function() { // Optionally pre-fill and calculate on load // calculateWeight(); initChart(); // Initialize chart structure even if empty });

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