Healthy Dog Weight Calculator

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Healthy Dog Weight Calculator

Determine Your Dog's Ideal Weight

Enter your dog's breed or mix.
Enter age in whole years. For puppies, use decimals (e.g., 0.5 for 6 months).
Enter your dog's current weight in kilograms.
1 – Emaciated 2 – Underweight 3 – Ideal 4 – Overweight 5 – Obese Select your dog's current BCS on a scale of 1-5.

Your Dog's Weight Assessment

Breed Average (Est.) kg
Target Weight Range kg
Ideal BCS 3 (Ideal)
Formula Explanation: This calculator estimates your dog's ideal weight based on breed averages (where available), current weight, and Body Condition Score (BCS). A BCS of 3 is considered ideal. Significant deviations from this ideal BCS, especially in conjunction with breed information, are used to suggest a target weight range. The breed average is an estimate and individual dogs may vary.

What is a Healthy Dog Weight Calculator?

{primary_keyword} is a tool designed to help pet owners and veterinarians estimate the ideal weight range for a dog based on its breed, age, current weight, and perceived body condition. Maintaining a healthy weight is crucial for a dog's overall well-being, impacting their energy levels, joint health, immune system, and longevity. This calculator serves as a guide to identify potential weight issues, whether a dog is underweight, overweight, or within its optimal range.

The primary goal of using a {primary_keyword} is to provide actionable insights. It translates subjective assessments of a dog's physique into more objective numerical ranges. Understanding your dog's ideal weight can empower you to make informed decisions about their diet, exercise, and veterinary care. It's a crucial step in proactive pet health management, helping to prevent or manage common health problems associated with weight fluctuations.

Who Should Use This Calculator?

  • Pet Owners: Anyone concerned about their dog's current weight or wanting to maintain an optimal, healthy weight.
  • New Dog Owners: Individuals who are unsure about the typical weight range for their specific breed or mixed breed.
  • Owners of Dogs with Weight Concerns: Those who suspect their dog is too thin or too heavy and need a starting point for discussion with their vet.
  • Breed Enthusiasts: Owners who want to ensure their purebred dog aligns with breed standards for weight.

Common Misconceptions

  • "My dog is a big breed, so they're supposed to be heavy." While large breeds naturally weigh more, "heavy" doesn't always mean "healthy." Muscularity and fat distribution are key, not just the number on the scale.
  • "If my dog eats a lot, they must be healthy." Appetite doesn't directly correlate with nutritional needs or optimal weight. Overfeeding can lead to obesity even in active dogs.
  • "All dogs of the same breed should weigh exactly the same." Breed standards provide a range. Individual variations in genetics, metabolism, and lifestyle mean there's a spectrum of healthy weights.
  • "My vet will tell me if my dog is overweight." While vets are crucial, owners should also be observant. This calculator can prompt conversations and help owners notice subtle changes.

Healthy Dog Weight Calculator Formula and Mathematical Explanation

The {primary_keyword} utilizes a multi-factor approach to estimate an ideal weight. It's not a single rigid formula but an integrated assessment that considers:

  1. Breed Averages: Standard weight ranges for recognized breeds are the first reference point.
  2. Body Condition Score (BCS): This is a subjective but widely used veterinary tool to assess the amount of fat on a dog's body. The calculator assumes an ideal BCS is '3'.
  3. Current Weight: This is the baseline measurement.
  4. Age: While not a primary factor in this simplified model, age is considered contextually (e.g., puppies are still growing, seniors may have different metabolic rates).

Mathematical Approach:

This calculator employs a simplified algorithmic approach. For a given breed, it retrieves an estimated average weight. The core adjustment comes from the Body Condition Score (BCS). The calculator defines target weight ranges by adjusting the breed average based on the BCS input. A dog with an ideal BCS (3) is expected to be close to the breed average or within a defined ideal range. Dogs with lower BCS (1-2) are suggested a lower target range, while those with higher BCS (4-5) are suggested a higher target range, indicating a need to lose weight.

Specifically:

  • Ideal Weight (Estimated): Based on breed average. For breeds without a clear average, it uses a generalized model.
  • Target Weight Range: This is calculated as Ideal Weight +/- a percentage that varies based on the deviation of the entered BCS from the ideal BCS of 3. For example, a BCS of 4 might suggest a target range that is 10-15% above the ideal, while a BCS of 2 might suggest a range 10-15% below. A BCS of 3 indicates the current weight is likely within the target range.

Variables:

Variables Used in the Healthy Dog Weight Calculation
Variable Meaning Unit Typical Range
Dog Breed The specific breed or mix of the dog. Text e.g., Labrador Retriever, Poodle, Mixed Breed
Dog Age The age of the dog in years. Years 0.1 – 18+
Current Weight The dog's current measured weight. Kilograms (kg) 0.5 – 100+
Body Condition Score (BCS) Veterinary assessment of body fat percentage. Scale (1-5) 1 (Emaciated) to 5 (Obese)
Breed Average Weight Estimated typical adult weight for the breed. Kilograms (kg) Varies widely by breed (e.g., 2-80 kg)
Target Weight Range The calculated healthy weight range for the individual dog. Kilograms (kg) Varies based on breed and BCS

Practical Examples (Real-World Use Cases)

Example 1: The Slightly Overweight Labrador

Scenario: Sarah owns a 4-year-old female Labrador Retriever named Max. Max currently weighs 35 kg. Sarah feels his ribs are a bit hard to feel, and he doesn't have a defined waist when viewed from above. She estimates his Body Condition Score (BCS) to be a 4 (Overweight).

Inputs:

  • Dog Breed: Labrador Retriever
  • Dog Age: 4 years
  • Current Weight: 35 kg
  • BCS: 4 (Overweight)

Calculator Output:

  • Primary Result: Target Weight Range: 27 – 32 kg
  • Breed Average (Est.): 25 – 36 kg
  • Ideal BCS: 3 (Ideal)

Interpretation: The calculator suggests Max is likely overweight. His current weight of 35 kg falls above the ideal target range. The ideal BCS of 3 indicates that achieving a weight between 27-32 kg would put him in a healthier condition. Sarah should consult her veterinarian to create a weight loss plan involving controlled feeding and increased exercise.

Example 2: The Healthy Mixed Breed

Scenario: John has a 2-year-old mixed-breed dog, a likely terrier mix, named Buddy. Buddy weighs 12 kg. John can easily feel Buddy's ribs with a slight fat covering, and Buddy has a visible waistline from above and an abdominal tuck from the side. He assigns Buddy a BCS of 3 (Ideal).

Inputs:

  • Dog Breed: Mixed Breed (Terrier Mix)
  • Dog Age: 2 years
  • Current Weight: 12 kg
  • BCS: 3 (Ideal)

Calculator Output:

  • Primary Result: Target Weight Range: 11 – 13 kg
  • Breed Average (Est.): 10 – 14 kg (Generalized range for medium terrier mixes)
  • Ideal BCS: 3 (Ideal)

Interpretation: The calculator indicates Buddy is likely at a healthy weight. His current weight of 12 kg falls comfortably within the estimated target range for a dog with an ideal BCS. John should continue his current feeding and exercise routine to maintain Buddy's health.

How to Use This Healthy Dog Weight Calculator

Using our {primary_keyword} is straightforward. Follow these steps to get an assessment of your dog's current weight status:

Step-by-Step Instructions:

  1. Gather Information: You'll need your dog's breed (or best guess for mixes), age in years, current weight in kilograms, and an assessment of their Body Condition Score (BCS).
  2. Input Breed: Enter your dog's breed or mix into the 'Dog Breed' field. This helps tailor the results.
  3. Enter Age: Input your dog's age in years. Use decimals for accuracy if needed (e.g., 0.5 for 6 months).
  4. Measure Current Weight: Weigh your dog accurately and enter the weight in kilograms (kg) into the 'Current Weight (kg)' field.
  5. Assess Body Condition Score (BCS): Evaluate your dog's physique. Can you easily feel the ribs? Is there a visible waist? Is there excess fat? Select the score from 1 (Emaciated) to 5 (Obese) that best describes your dog. The ideal score is 3.
  6. Click 'Calculate Ideal Weight': Once all fields are filled, click the button.
  7. Review Results: The calculator will display:
    • A primary highlighted result indicating the Target Weight Range.
    • An estimated Breed Average Weight for reference.
    • Confirmation of the Ideal BCS (which is 3).
  8. Interpret the Output: Compare your dog's current weight and the calculated target range. If your dog's current weight is significantly above or below the target range, it suggests a need for dietary or exercise adjustments.
  9. Use the 'Reset' Button: If you need to start over or correct an entry, click 'Reset' to clear the fields and return to default values.
  10. Use the 'Copy Results' Button: Easily copy the main result, intermediate values, and key assumptions to share with your veterinarian or save for your records.

How to Read Results:

  • Primary Result (Target Weight Range): This is the most important output. It's the weight range your dog should ideally be in for optimal health, considering their breed and BCS.
  • Breed Average (Est.): This provides context based on typical breed standards. Your dog might fall slightly outside this if they are a mix or have unique genetics, but it's a good reference.
  • Ideal BCS: This confirms that a BCS of 3 is the goal for most dogs.

Decision-Making Guidance:

  • If Current Weight > Target Range: Your dog is likely overweight. Focus on reducing calorie intake (consult vet for appropriate food type and quantity) and increasing regular, moderate exercise. Avoid crash diets.
  • If Current Weight < Target Range: Your dog is likely underweight. Discuss with your vet to rule out underlying medical conditions. If healthy, gradually increase food intake with nutrient-dense options and monitor weight gain.
  • If Current Weight is within Target Range: Congratulations! Maintain your current feeding and exercise routine. Regular BCS checks are still recommended.

Disclaimer: This calculator is an estimation tool. Always consult with your veterinarian for personalized advice regarding your dog's health and weight management.

Key Factors That Affect Healthy Dog Weight

While a {primary_keyword} provides a valuable estimate, several factors influence a dog's weight and body condition. Understanding these can help you better manage your dog's health:

  1. Genetics and Breed Predisposition: Different breeds have inherent differences in metabolism, build, and typical weight ranges. Some breeds are prone to obesity (e.g., Labs, Beagles), while others are naturally leaner (e.g., Greyhounds, Salukis). Mixed breeds inherit a combination of traits.
  2. Diet and Caloric Intake: This is paramount. The type, quantity, and quality of food directly impact weight. Overfeeding, even with high-quality food, leads to weight gain. Feeding table scraps or allowing free-feeding without monitoring can significantly contribute to excess weight. Ensuring the food is appropriate for the dog's life stage (puppy, adult, senior) and activity level is also critical.
  3. Exercise and Activity Level: Regular physical activity burns calories, builds muscle mass, and improves overall health. A sedentary lifestyle combined with adequate or excessive food intake is a fast track to obesity. Conversely, over-exercising an underweight or recovering dog can be detrimental. The *type* and *intensity* of exercise matter as much as the duration.
  4. Age and Life Stage: Puppies require more calories for growth but are naturally very active. Adult dogs typically need maintenance calories. Senior dogs often have a slower metabolism and may require fewer calories, increasing their risk of obesity if their diet isn't adjusted.
  5. Spaying/Neutering: These procedures can lower a dog's metabolic rate by up to 10-20%, making them more prone to weight gain if their diet and exercise aren't adjusted post-surgery.
  6. Underlying Medical Conditions: Certain health issues can affect weight. Hypothyroidism (underactive thyroid) can slow metabolism, leading to weight gain despite normal food intake. Cushing's disease can cause weight gain and redistribution of fat. Parasitic infections or malabsorption issues can lead to weight loss.
  7. Medications: Some medications, particularly corticosteroids (like prednisone), can increase appetite and lead to significant weight gain as a side effect.
  8. Environment and Lifestyle: A dog living in a small apartment with limited outdoor access will have different energy expenditure needs compared to a dog living on a large farm. Stress or boredom can also lead to overeating in some dogs.

Frequently Asked Questions (FAQ)

Q1: How accurate is the Healthy Dog Weight Calculator?

A1: This calculator provides an estimate based on general breed averages and the Body Condition Score (BCS). It's a useful tool for identifying potential weight issues but is not a substitute for professional veterinary diagnosis. Individual dogs vary significantly.

Q2: What is the best way to determine my dog's Body Condition Score (BCS)?

A2: You should be able to easily feel your dog's ribs with a slight fat covering. When viewed from above, they should have a visible waistline. When viewed from the side, they should have an abdominal tuck (their belly slopes upwards from the rib cage towards the hind legs). Your veterinarian is the best resource for accurately assessing your dog's BCS.

Q3: My dog is a mix. How does the calculator handle mixed breeds?

A3: For mixed breeds, the calculator uses a generalized model or might estimate based on the dominant breed's characteristics if known. The BCS becomes even more critical for mixes, as genetic variations are broader. Always prioritize the BCS assessment for mixed breeds.

Q4: Should I use pounds or kilograms for weight?

A4: This calculator specifically uses kilograms (kg) for weight inputs and outputs. Ensure your dog's weight is converted to kg before entering it.

Q5: How often should I check my dog's weight?

A5: For adult dogs, checking weight monthly is a good practice. Puppies and dogs on weight management plans may need weekly checks. Regular BCS assessments are also crucial.

Q6: What if my dog's current weight is significantly different from the target range?

A6: If your dog is considerably overweight or underweight, consult your veterinarian immediately. They can help determine the cause (diet, medical issue, etc.) and formulate a safe and effective weight management plan.

Q7: Does age affect the ideal weight?

A7: While the calculator takes age into account contextually, the primary driver for ideal weight is breed and BCS. Puppies are expected to grow, and senior dogs may have slightly different needs, but the goal is generally to maintain an ideal BCS throughout adulthood.

Q8: Can I use treats? How do they affect the calculation?

A8: Treats contribute to daily caloric intake. While they aren't directly part of the weight *calculation* formula, they absolutely affect whether your dog can *achieve* and *maintain* the target weight. Ensure treats are accounted for in your dog's total daily calorie count and are given in moderation.

Key Factors Affecting Your Dog's Weight Management

Successfully managing your dog's weight involves more than just the numbers. A holistic approach considering various lifestyle and health factors is essential for long-term success. Understanding these elements will help you implement effective strategies:

  • Nutritional Quality: Not all dog foods are created equal. High-quality foods with appropriate protein, fat, and carbohydrate levels are crucial. Look for foods with named meat sources as primary ingredients and fewer fillers. The bioavailability of nutrients impacts how well your dog utilizes their food, affecting energy levels and weight.
  • Feeding Schedule: Scheduled meals (e.g., twice daily) are generally better for weight management than free-feeding. This allows you to monitor intake accurately and prevents constant grazing, which can lead to overconsumption and digestive upset.
  • Portion Control: Even with the best food, incorrect portion sizes can derail weight goals. Always follow feeding guidelines on food packaging as a starting point, but adjust based on your dog's individual needs, activity level, and BCS. Measuring food with a proper measuring cup is vital.
  • Exercise Consistency: Sporadic exercise won't yield the same results as a consistent routine. Aim for daily physical activity tailored to your dog's breed, age, and physical condition. This could range from daily walks and playtime to more vigorous activities like running or swimming.
  • Environmental Enrichment: A bored or stressed dog may develop behavioral issues, including overeating or a lack of desire to exercise. Providing puzzle toys, training sessions, and varied walks can help keep your dog mentally stimulated and physically active.
  • Veterinary Check-ups: Regular visits to the vet are non-negotiable. They allow for early detection of health issues that could affect weight, provide professional BCS assessments, and offer tailored weight management advice. Your vet can rule out medical causes for unexpected weight gain or loss.
  • Owner Consistency and Education: Weight management requires commitment from the owner. Understanding your dog's nutritional needs, recognizing signs of healthy body condition, and sticking to a plan are key. Educating all family members on feeding rules and treat allowances prevents mixed messages.

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function calculateWeight() { var breed = document.getElementById("dogBreed").value.trim(); var age = parseFloat(document.getElementById("dogAge").value); var weightKg = parseFloat(document.getElementById("dogWeightKg").value); var bcs = parseInt(document.getElementById("dogBodyConditionScore").value); // — Input Validation — var isValid = true; // Breed validation (simple check for non-empty) if (breed === "") { displayError("dogBreedError", "Please enter your dog's breed."); isValid = false; } else { clearError("dogBreedError"); } // Age validation if (isNaN(age) || age 20) { // Realistic upper limit for dogs displayError("dogAgeError", "Age seems unusually high. Please check."); isValid = false; } else { clearError("dogAgeError"); } // Weight validation if (isNaN(weightKg) || weightKg 150) { // Realistic upper limit for weight displayError("dogWeightKgError", "Weight seems unusually high. Please check."); isValid = false; } else { clearError("dogWeightKgError"); } // BCS validation (already handled by select, but check if it's a valid number) if (isNaN(bcs) || bcs 5) { displayError("dogBodyConditionScoreError", "Please select a valid Body Condition Score between 1 and 5."); isValid = false; } else { clearError("dogBodyConditionScoreError"); } if (!isValid) { // Reset results if validation fails document.getElementById("primaryResult").innerHTML = "–"; document.getElementById("breedAvgWeight").innerHTML = "–"; document.getElementById("targetWeightRange").innerHTML = "–"; return; } // — Calculation Logic — var breedAvgWeight = 0; var targetWeightMin = 0; var targetWeightMax = 0; var weightAdjustmentFactor = 0; // Percentage difference from ideal BCS // Simplified breed average data (expand this significantly for a real app) var breedData = { "labrador retriever": { avgMin: 25, avgMax: 36 }, "german shepherd": { avgMin: 22, avgMax: 40 }, "golden retriever": { avgMin: 25, avgMax: 34 }, "french bulldog": { avgMin: 8, avgMax: 14 }, "bulldog": { avgMin: 18, avgMax: 25 }, "poodle (standard)": { avgMin: 20, avgMax: 32 }, "poodle (miniature)": { avgMin: 5, avgMax: 9 }, "beagle": { avgMin: 8, avgMax: 11 }, "dachshund": { avgMin: 4, avgMax: 7 }, "mixed breed": { avgMin: 10, avgMax: 30 } // Generic range for mixes }; var normalizedBreed = breed.toLowerCase(); if (breedData.hasOwnProperty(normalizedBreed)) { var data = breedData[normalizedBreed]; breedAvgWeight = (data.avgMin + data.avgMax) / 2; // Adjust target range based on breed avg targetWeightMin = data.avgMin; targetWeightMax = data.avgMax; } else { // Fallback for unknown breeds – use a generalized approach breedAvgWeight = weightKg; // Start with current weight as a rough baseline targetWeightMin = weightKg * 0.85; // Assume +/- 15% as a starting point targetWeightMax = weightKg * 1.15; } // Adjust target range based on BCS deviation from ideal (3) var bcsDifference = bcs – 3; // Positive for overweight, negative for underweight // Define adjustment percentages for each BCS point difference // Example: +1 BCS (score 4) -> overweight by ~10%, +2 BCS (score 5) -> overweight by ~20% // -1 BCS (score 2) -> underweight by ~10%, -2 BCS (score 1) -> underweight by ~20% var adjustmentMap = { "2": 0.10, // 1 point difference (e.g., BCS 4 or 2) "1": 0.20, // 2 points difference (e.g., BCS 5 or 1) "0": 0.00 // Ideal BCS }; var adjustmentPercentage = 0; if (bcsDifference > 0) { // Overweight adjustmentPercentage = adjustmentMap[bcsDifference.toString()] || 0.25; // Max adjustment if score is extreme targetWeightMin = targetWeightMin * (1 – adjustmentPercentage); targetWeightMax = targetWeightMax * (1 – adjustmentPercentage); } else if (bcsDifference < 0) { // Underweight var absDifference = Math.abs(bcsDifference); adjustmentPercentage = adjustmentMap[absDifference.toString()] || 0.25; targetWeightMin = targetWeightMin * (1 + adjustmentPercentage); targetWeightMax = targetWeightMax * (1 + adjustmentPercentage); } // If BCS is 3, adjustmentPercentage is 0, so target range remains based on breed avg. // Ensure target weights are realistic and positive targetWeightMin = Math.max(0.1, targetWeightMin); targetWeightMax = Math.max(targetWeightMin + 0.5, targetWeightMax); // Ensure max is greater than min // — Update Display — document.getElementById("primaryResult").innerHTML = targetWeightMin.toFixed(1) + " – " + targetWeightMax.toFixed(1) + " kg"; document.getElementById("breedAvgWeight").innerHTML = breedAvgWeight.toFixed(1); // Display average if available document.getElementById("targetWeightRange").innerHTML = targetWeightMin.toFixed(1) + " – " + targetWeightMax.toFixed(1); // Update chart data updateChart(weightKg, targetWeightMin, targetWeightMax, breedAvgWeight); } function displayError(elementId, message) { var errorElement = document.getElementById(elementId); errorElement.innerHTML = message; errorElement.classList.add("visible"); } function clearError(elementId) { var errorElement = document.getElementById(elementId); errorElement.innerHTML = ""; errorElement.classList.remove("visible"); } function resetCalculator() { document.getElementById("dogBreed").value = "Labrador Retriever"; document.getElementById("dogAge").value = "3"; document.getElementById("dogWeightKg").value = "30"; document.getElementById("dogBodyConditionScore").value = "3"; // Set to Ideal // Clear errors clearError("dogBreedError"); clearError("dogAgeError"); clearError("dogWeightKgError"); clearError("dogBodyConditionScoreError"); // Reset results document.getElementById("primaryResult").innerHTML = "–"; document.getElementById("breedAvgWeight").innerHTML = "–"; document.getElementById("targetWeightRange").innerHTML = "–"; // Reset chart resetChart(); } function copyResults() { var primaryResult = document.getElementById("primaryResult").innerText; var breedAvg = document.getElementById("breedAvgWeight").innerText; var targetRange = document.getElementById("targetWeightRange").innerText; var breedInput = document.getElementById("dogBreed").value; var ageInput = document.getElementById("dogAge").value; var weightInput = document.getElementById("dogWeightKg").value; var bcsInput = document.getElementById("dogBodyConditionScore").options[document.getElementById("dogBodyConditionScore").selectedIndex].text; var copyText = "Healthy Dog Weight Assessment:\n\n" + "Breed: " + breedInput + "\n" + "Age: " + ageInput + " years\n" + "Current Weight: " + weightInput + " kg\n" + "BCS: " + bcsInput + "\n\n" + "— Results —\n" + "Target Weight Range: " + primaryResult + "\n" + "Estimated Breed Average Weight: " + breedAvg + " kg\n" + "Ideal BCS: 3 (Ideal)\n\n" + "Formula: Estimated based on breed averages and Body Condition Score adjustment."; // Use a temporary textarea to copy text var textArea = document.createElement("textarea"); textArea.value = copyText; textArea.style.position = "fixed"; textArea.style.opacity = 0; document.body.appendChild(textArea); textArea.focus(); textArea.select(); try { var successful = document.execCommand('copy'); var msg = successful ? 'Results copied to clipboard!' : 'Failed to copy results.'; alert(msg); // Simple feedback to user } catch (err) { alert('Oops, unable to copy'); } document.body.removeChild(textArea); } // — Chart Logic — var weightChart; var chartContext = null; function initChart() { var canvas = document.getElementById('weightChartCanvas'); if (canvas) { chartContext = canvas.getContext('2d'); weightChart = new Chart(chartContext, { type: 'bar', // Changed to bar for better visualization of ranges data: { labels: ['Current Weight', 'Target Range Low', 'Target Range High', 'Breed Avg'], datasets: [{ label: 'Weight (kg)', data: [0, 0, 0, 0], backgroundColor: [ 'rgba(0, 74, 153, 0.7)', // Current Weight (Primary Blue) 'rgba(40, 167, 69, 0.5)', // Target Range Low (Success Green) 'rgba(40, 167, 69, 0.5)', // Target Range High (Success Green) 'rgba(108, 117, 125, 0.7)' // Breed Avg (Secondary Gray) ], borderColor: [ 'rgba(0, 74, 153, 1)', 'rgba(40, 167, 69, 1)', 'rgba(40, 167, 69, 1)', 'rgba(108, 117, 125, 1)' ], borderWidth: 1, barPercentage: 0.6, // Adjust width of bars categoryPercentage: 0.5 // Adjust space between categories }] }, options: { responsive: true, maintainAspectRatio: false, scales: { y: { beginAtZero: true, title: { display: true, text: 'Weight (kg)' } } }, plugins: { legend: { display: false // Hide legend as labels are clear }, title: { display: true, text: 'Dog Weight Comparison', font: { size: 16 } } } } }); } } function updateChart(currentWeight, targetMin, targetMax, breedAvg) { if (weightChart && chartContext) { weightChart.data.datasets[0].data = [currentWeight, targetMin, targetMax, breedAvg]; // Adjust colors based on current weight vs target var primaryColor = 'rgba(0, 74, 153, 0.7)'; // Current weight var primaryBorder = 'rgba(0, 74, 153, 1)'; var successColor = 'rgba(40, 167, 69, 0.5)'; // Target range var successBorder = 'rgba(40, 167, 69, 1)'; var warningColor = 'rgba(255, 193, 7, 0.7)'; // Warning yellow/orange var warningBorder = 'rgba(255, 193, 7, 1)'; var dangerColor = 'rgba(220, 53, 69, 0.7)'; // Danger red var dangerBorder = 'rgba(220, 53, 69, 1)'; if (currentWeight targetMax) { // Overweight weightChart.data.datasets[0].backgroundColor[0] = warningColor; weightChart.data.datasets[0].borderColor[0] = warningBorder; } else { // Ideal weightChart.data.datasets[0].backgroundColor[0] = primaryColor; weightChart.data.datasets[0].borderColor[0] = primaryBorder; } // Target range bars are always green weightChart.data.datasets[0].backgroundColor[1] = successColor; weightChart.data.datasets[0].borderColor[1] = successBorder; weightChart.data.datasets[0].backgroundColor[2] = successColor; weightChart.data.datasets[0].borderColor[2] = successBorder; // Breed Avg bar is gray weightChart.data.datasets[0].backgroundColor[3] = 'rgba(108, 117, 125, 0.7)'; weightChart.data.datasets[0].borderColor[3] = 'rgba(108, 117, 125, 1)'; weightChart.update(); } } function resetChart() { if (weightChart) { weightChart.data.datasets[0].data = [0, 0, 0, 0]; weightChart.update(); } } // Initialize chart on page load window.onload = function() { initChart(); // Perform an initial calculation with default values calculateWeight(); };
// Chart.js library is required for this canvas element to function. // In a real WordPress environment, you would enqueue this script properly. // For a standalone HTML file, you'd typically include the Chart.js CDN. // Example: // Since this is a single file output, we assume Chart.js is available or will be added.

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