Airedale Weight Calculator

Airedale Terrier Weight Calculator: Ideal Weight & Growth Guide :root { –primary-color: #004a99; –success-color: #28a745; –background-color: #f8f9fa; –text-color: #333; –border-color: #ddd; –card-background: #fff; –shadow: 0 2px 5px 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: 20px; } .container { max-width: 960px; width: 100%; background-color: var(–card-background); padding: 30px; border-radius: 8px; box-shadow: var(–shadow); margin: 0 auto; } h1, h2, h3 { color: var(–primary-color); text-align: center; margin-bottom: 20px; } h1 { font-size: 2.2em; } h2 { font-size: 1.8em; margin-top: 30px; border-bottom: 2px solid var(–primary-color); padding-bottom: 10px; } h3 { font-size: 1.4em; margin-top: 25px; } .loan-calc-container { background-color: var(–card-background); padding: 25px; border-radius: 8px; 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Airedale Terrier Weight Calculator

Estimate your Airedale's ideal adult weight and track their growth with our easy-to-use calculator.

Airedale Weight Calculator

Enter the Airedale's age in full months.
Enter the Airedale's current weight in kilograms.
Male Female Select the Airedale's gender.
4.5 (Ideal) 4.0 (Slightly lean) 5.0 (Slightly overweight) 3.5 (Lean) 5.5 (Overweight) Rate your Airedale's body condition on a scale of 1-9 (we use a simplified 3.5-5.5 range). 4.5 is generally ideal.

Your Airedale's Estimated Weight

— kg
kg Estimated Adult Weight
kg/month Estimated Monthly Growth
Weight Category
Formula: Estimated Adult Weight = Current Weight / (Age in Months / Target Adult Age Months) ^ Growth Factor. Growth Rate = (Estimated Adult Weight – Current Weight) / (Target Adult Age Months – Age in Months). Weight Category based on BCS and comparison to ideal ranges.
Airedale Terrier Growth Chart
Airedale Terrier Weight Ranges (Approximate)
Age (Months) Ideal Weight Range (kg) Notes
2 5 – 9 Puppy stage, rapid growth
4 10 – 18 Still growing quickly
6 15 – 25 Approaching adolescence
9 20 – 30 Nearing adult size
12+ 23 – 35 (Male) / 20 – 30 (Female) Adult weight range

Understanding the Airedale Terrier Weight Calculator

What is an Airedale Weight Calculator?

An Airedale weight calculator is a specialized tool designed to help Airedale Terrier owners estimate their dog's ideal adult weight and monitor their growth progress. Airedales are the largest of the terrier breeds, known for their distinctive appearance, intelligence, and energetic nature. Like all breeds, they have specific growth patterns and ideal weight ranges that are crucial for their overall health and well-being. This airedale weight calculator takes into account factors such as the dog's current age, weight, gender, and body condition score to provide an informed estimate. It's a valuable resource for new puppy owners trying to navigate the complexities of canine growth, as well as for owners of adult Airedales concerned about maintaining a healthy weight.

Who should use it:

  • Owners of Airedale puppies to track expected growth.
  • Owners of adult Airedales to assess if their dog is at a healthy weight.
  • Prospective Airedale owners researching the breed's physical characteristics.
  • Veterinarians or vet techs as a supplementary tool for client education.

Common misconceptions:

  • That all Airedales of the same age and gender will weigh exactly the same. Genetics, diet, exercise, and health play significant roles.
  • That a higher weight always means a healthier dog. Obesity is a major health concern in dogs, leading to various issues.
  • That the calculator provides a definitive diagnosis. It's an estimation tool and should not replace professional veterinary advice.

Airedale Weight Calculator Formula and Mathematical Explanation

The core of the airedale weight calculator relies on a few key estimations and calculations. While precise prediction is impossible due to individual variations, the calculator uses established principles of canine growth and body condition assessment.

Estimated Adult Weight Calculation

A common approach for estimating adult weight involves projecting current growth trends. A simplified model can be represented as:

Estimated Adult Weight = Current Weight / (Age in Months / Target Adult Age Months) ^ Growth Factor

Where:

  • Current Weight: The dog's weight at the time of calculation.
  • Age in Months: The dog's current age in months.
  • Target Adult Age Months: The typical age an Airedale reaches full size (around 12-18 months, often approximated as 15 months for calculation).
  • Growth Factor: A value (often around 0.7 to 0.9) that accounts for the non-linear nature of growth, where growth slows down as the dog matures. A higher factor means growth slows more rapidly.

Note: The calculator uses a simplified projection based on typical Airedale growth curves, which may differ slightly from this exact formula but aims for a similar outcome.

Estimated Monthly Growth Rate

This calculation helps understand the current pace of weight gain:

Estimated Monthly Growth = (Estimated Adult Weight - Current Weight) / (Target Adult Age Months - Age in Months)

This provides a linear projection of how much weight the dog is expected to gain each month until reaching its estimated adult weight, assuming growth continues at a steady rate from the current point.

Weight Category Determination

This is determined by comparing the dog's current weight and Body Condition Score (BCS) against breed-specific ideal ranges. A BCS of 4.5 on a 9-point scale is generally considered ideal, indicating palpable ribs without being overly prominent, a visible waist from above, and a tucked-up abdomen from the side. Deviations from this ideal, combined with the calculated weight relative to expected growth, help categorize the dog as underweight, ideal, or overweight.

Variables Table

Variable Meaning Unit Typical Range
Age (Months) Current age of the Airedale Terrier Months 0.5 – 24
Current Weight Weight of the Airedale Terrier at calculation Kilograms (kg) 1 – 40
Gender Biological sex of the Airedale Terrier Categorical Male / Female
Body Condition Score (BCS) Assessment of the dog's fat reserves and muscle mass Scale (e.g., 3.5 – 5.5) 3.5 (Lean) to 5.5 (Overweight)
Target Adult Age Approximate age Airedales reach full size Months 12 – 18 (often 15 used in calculators)
Growth Factor Exponent used in projection, reflects growth deceleration Decimal 0.7 – 0.9
Estimated Adult Weight Projected final weight of the Airedale Kilograms (kg) 20 – 35
Estimated Monthly Growth Projected weight gain per month Kilograms (kg)/month 0.1 – 1.5

Practical Examples (Real-World Use Cases)

Example 1: Healthy Airedale Puppy

Meet "Max," a 6-month-old male Airedale Terrier. His owner inputs the following into the airedale weight calculator:

  • Age: 6 months
  • Current Weight: 22 kg
  • Gender: Male
  • BCS: 4.5 (Ideal)

Calculator Output:

  • Estimated Adult Weight: 28 kg
  • Estimated Monthly Growth: 1 kg/month
  • Weight Category: Ideal
  • Main Result: 28 kg

Interpretation: Max is growing well and is on track to reach a healthy adult weight within the typical range for male Airedales. His current weight and BCS suggest a balanced diet and appropriate exercise. The owner can continue monitoring his growth using the provided chart and table.

Example 2: Overweight Adult Airedale

Consider "Daisy," a 2-year-old (24 months) female Airedale Terrier. Her owner notices she's less active and inputs:

  • Age: 24 months
  • Current Weight: 33 kg
  • Gender: Female
  • BCS: 5.5 (Overweight)

Calculator Output:

  • Estimated Adult Weight: 31 kg (Note: Calculator may show current weight as primary if age > adult age)
  • Estimated Monthly Growth: -0.2 kg/month (Indicates expected slight decrease if diet adjusted)
  • Weight Category: Overweight
  • Main Result: 33 kg (Current Weight)

Interpretation: Daisy is currently heavier than the ideal adult range for female Airedales (typically 20-30 kg). Her BCS confirms she is carrying excess weight. The calculator's "Overweight" category and the negative growth rate projection highlight the need for a veterinary consultation to adjust her diet and exercise plan to achieve a healthier weight, aiming for the lower end of the adult range.

How to Use This Airedale Weight Calculator

Using the airedale weight calculator is straightforward. Follow these steps to get an estimate for your Airedale:

  1. Gather Information: You'll need your Airedale's exact age in months, their current weight in kilograms, their gender, and an assessment of their Body Condition Score (BCS). If unsure about BCS, consult your veterinarian or use online guides with visual examples.
  2. Input Data: Enter the gathered information into the corresponding fields on the calculator: 'Age (Months)', 'Current Weight (kg)', 'Gender', and 'Body Condition Score (BCS)'.
  3. View Results: The calculator will automatically update and display:
    • Main Result: This typically shows the estimated adult weight or current weight if the dog is already an adult.
    • Estimated Adult Weight: The projected final weight.
    • Estimated Monthly Growth: The expected rate of weight gain per month until adulthood.
    • Weight Category: An assessment (e.g., Underweight, Ideal, Overweight) based on inputs.
  4. Interpret the Data: Compare the results with the provided Airedale weight ranges table and the chart. Use the information to gauge if your dog is on a healthy growth trajectory or if adjustments are needed.
  5. Use the Chart and Table: The dynamic chart visualizes your dog's current weight against typical growth curves, while the table provides standard weight ranges by age.
  6. Reset or Copy: Use the 'Reset' button to clear fields and start over. Use 'Copy Results' to save or share the calculated information and key assumptions.

Decision-making guidance: If your Airedale falls outside the ideal ranges or is categorized as underweight or overweight, it's crucial to consult your veterinarian. They can provide personalized advice on diet, portion control, exercise, and rule out any underlying health issues. This calculator is a tool to facilitate informed discussions with your vet, not a substitute for professional medical advice.

Key Factors That Affect Airedale Weight Results

Several factors influence an Airedale Terrier's weight and growth, impacting the accuracy of any calculator. Understanding these can provide a more complete picture:

  1. Genetics: Just like humans, dogs have genetic predispositions. Some Airedales are naturally leaner or stockier than others, even within the same litter. The calculator provides an average estimate, but individual genetics can lead to variations.
  2. Diet and Nutrition: The quality and quantity of food are paramount. A diet lacking essential nutrients can hinder growth, while overfeeding, especially with calorie-dense foods or excessive treats, can lead to obesity. The calculator assumes a reasonably balanced diet.
  3. Exercise and Activity Level: Airedales are energetic dogs. Regular, appropriate exercise helps build muscle mass and burn calories, contributing to a lean physique. Insufficient activity can lead to weight gain, even with a controlled diet.
  4. Spay/Neuter Status: Hormonal changes after spaying or neutering can affect metabolism. Some dogs may gain weight more easily post-surgery, requiring careful monitoring of diet and exercise.
  5. Health Conditions: Underlying medical issues, such as hypothyroidism or Cushing's disease, can significantly impact weight. Conversely, conditions causing malabsorption can lead to being underweight. The calculator doesn't account for specific health problems.
  6. Age and Life Stage: Growth rates vary dramatically. Puppies experience rapid growth, adolescents may have spurts or plateaus, and adult dogs require maintenance nutrition. Senior Airedales might experience metabolic changes. The calculator is most accurate for growing puppies and young adults.
  7. Deworming and Parasite Control: Internal parasites can steal nutrients, leading to poor growth and weight loss, even with adequate food intake. Regular deworming is essential for puppies and adults.
  8. Environmental Factors: Stress, changes in routine, or environmental conditions can sometimes affect appetite and activity levels, indirectly influencing weight.

Frequently Asked Questions (FAQ)

Q1: What is the ideal adult weight for an Airedale Terrier?

A: For adult Airedales, males typically range from 23-35 kg (50-75 lbs) and females from 20-30 kg (45-65 lbs). However, body condition and muscle mass are more important indicators than the number on the scale. Always consult the airedale weight calculator and your vet.

Q2: My Airedale puppy is much lighter/heavier than the calculator suggests. Should I worry?

A: A calculator provides an estimate. If your puppy's weight deviates significantly, especially if accompanied by poor energy levels, appetite changes, or other symptoms, consult your veterinarian. Genetics and individual growth patterns play a large role.

Q3: How often should I weigh my Airedale puppy?

A: During the rapid growth phase (up to 6-9 months), weighing your puppy weekly or bi-weekly and using the airedale weight calculator can be beneficial. Once they reach adulthood, monthly weigh-ins are usually sufficient for monitoring.

Q4: What does a Body Condition Score (BCS) of 4.5 mean?

A: A BCS of 4.5 (on a 9-point scale) is considered ideal. It means you should be able to easily feel your Airedale's ribs under a thin layer of fat, they should have a visible waist when viewed from above, and an abdominal tuck when viewed from the side. This score is crucial for the airedale weight calculator.

Q5: Can I use this calculator for other terrier breeds?

A: While the general principles of growth apply, this calculator is specifically calibrated for Airedale Terriers due to their unique size and growth characteristics. Using it for significantly smaller or larger breeds may yield inaccurate results.

Q6: My adult Airedale is gaining weight. What should I do?

A: Consult your veterinarian. They can help determine the cause (diet, lack of exercise, medical condition) and recommend a safe weight loss plan. Adjusting food portions and increasing activity are common strategies. Use the airedale weight calculator to track progress towards a healthier weight.

Q7: How accurate are these weight estimations?

A: The accuracy depends on the quality of input data and the individual dog's unique growth curve. The calculator provides a helpful guideline but is not a substitute for professional veterinary assessment. Factors like diet, health, and genetics introduce variability.

Q8: Does the calculator account for muscle mass vs. fat?

A: The Body Condition Score (BCS) input helps account for this. A dog with high muscle mass might weigh more but still have an ideal BCS. However, the calculator primarily estimates skeletal growth and overall weight. A vet's physical assessment remains the gold standard.

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var ageMonthsInput = document.getElementById('ageMonths'); var currentWeightKgInput = document.getElementById('currentWeightKg'); var genderInput = document.getElementById('gender'); var bodyConditionScoreInput = document.getElementById('bodyConditionScore'); var mainResultDisplay = document.getElementById('mainResult'); var estimatedAdultWeightDisplay = document.getElementById('estimatedAdultWeight'); var growthRateDisplay = document.getElementById('growthRate'); var weightCategoryDisplay = document.getElementById('weightCategory'); var ageMonthsError = document.getElementById('ageMonthsError'); var currentWeightKgError = document.getElementById('currentWeightKgError'); var chart; var chartContext = document.getElementById('growthChart').getContext('2d'); var TARGET_ADULT_AGE_MONTHS = 15; // Approximate age Airedales reach full size var GROWTH_FACTOR = 0.8; // Adjusts the curve of growth deceleration function validateInput(inputId, errorId, min, max) { var input = document.getElementById(inputId); var errorDisplay = document.getElementById(errorId); var value = parseFloat(input.value); var isValid = true; errorDisplay.classList.remove('visible'); input.style.borderColor = '#ddd'; if (isNaN(value) || input.value.trim() === "") { errorDisplay.textContent = "This field is required."; isValid = false; } else if (value max) { errorDisplay.textContent = "Value exceeds maximum limit."; isValid = false; } if (!isValid) { errorDisplay.classList.add('visible'); input.style.borderColor = '#dc3545'; } return isValid; } function calculateAiredaleWeight() { var ageMonths = parseFloat(ageMonthsInput.value); var currentWeightKg = parseFloat(currentWeightKgInput.value); var gender = genderInput.value; var bcs = parseFloat(bodyConditionScoreInput.value); var isValidAge = validateInput('ageMonths', 'ageMonthsError', 0); var isValidWeight = validateInput('currentWeightKg', 'currentWeightKgError', 0); if (!isValidAge || !isValidWeight) { resetResults(); return; } var estimatedAdultWeight; var weightCategory; var growthRate; var maleAdultIdealMax = 35; var femaleAdultIdealMax = 30; var adultIdealMin = gender === 'male' ? 23 : 20; if (ageMonths 0) { growthRate = (estimatedAdultWeight – currentWeightKg) / remainingMonths; } else { growthRate = 0; // Already at target age } mainResultDisplay.textContent = estimatedAdultWeight.toFixed(1); } else { // For adults or older dogs, focus on current weight and BCS estimatedAdultWeight = currentWeightKg; // Current weight is the most relevant growthRate = 0; // No projected growth mainResultDisplay.textContent = currentWeightKg.toFixed(1); } // Adjust estimated adult weight to be within breed standards if projection is too high/low if (gender === 'male' && estimatedAdultWeight > maleAdultIdealMax) estimatedAdultWeight = maleAdultIdealMax; if (gender === 'female' && estimatedAdultWeight > femaleAdultIdealMax) estimatedAdultWeight = femaleAdultIdealMax; if (estimatedAdultWeight < adultIdealMin) estimatedAdultWeight = adultIdealMin; // Determine Weight Category based on BCS and comparison to ideal ranges var idealWeight = gender === 'male' ? (TARGET_ADULT_AGE_MONTHS / TARGET_ADULT_AGE_MONTHS) * (23 + 35) / 2 : (TARGET_ADULT_AGE_MONTHS / TARGET_ADULT_AGE_MONTHS) * (20 + 30) / 2; // Average ideal for adult idealWeight = (ageMonths < TARGET_ADULT_AGE_MONTHS) ? estimatedAdultWeight : idealWeight; // Use projected adult weight for puppies if (bcs = 5.5) { weightCategory = "Overweight"; } else if (currentWeightKg < (idealWeight * 0.9) && bcs (idealWeight * 1.1) && bcs > 4.5) { weightCategory = "Likely Overweight"; } else { weightCategory = "Ideal"; } // Ensure growth rate is not negative if dog is already adult if (ageMonths >= TARGET_ADULT_AGE_MONTHS) { growthRate = 0; } estimatedAdultWeightDisplay.textContent = estimatedAdultWeight.toFixed(1); growthRateDisplay.textContent = growthRate >= 0 ? growthRate.toFixed(2) : (growthRate * -1).toFixed(2) + " (loss)"; // Show loss if negative weightCategoryDisplay.textContent = weightCategory; updateChart(ageMonths, currentWeightKg, estimatedAdultWeight); } function resetResults() { mainResultDisplay.textContent = '– kg'; estimatedAdultWeightDisplay.textContent = '–'; growthRateDisplay.textContent = '–'; weightCategoryDisplay.textContent = '–'; if (chart) { chart.destroy(); } // Reset chart context if needed, or just redraw with empty data chartContext.clearRect(0, 0, chartContext.canvas.width, chartContext.canvas.height); } function resetCalculator() { ageMonthsInput.value = 6; currentWeightKgInput.value = 15; genderInput.value = 'male'; bodyConditionScoreInput.value = 4.5; ageMonthsError.classList.remove('visible'); currentWeightKgError.classList.remove('visible'); ageMonthsInput.style.borderColor = '#ddd'; currentWeightKgInput.style.borderColor = '#ddd'; calculateAiredaleWeight(); } function copyResults() { var mainResult = mainResultDisplay.textContent; var estimatedAdult = estimatedAdultWeightDisplay.textContent; var growth = growthRateDisplay.textContent; var category = weightCategoryDisplay.textContent; var gender = genderInput.value; var age = ageMonthsInput.value; var weight = currentWeightKgInput.value; var bcs = bodyConditionScoreInput.options[bodyConditionScoreInput.selectedIndex].text; var copyText = "Airedale Weight Calculator Results:\n\n" + "Current Age: " + age + " months\n" + "Current Weight: " + weight + " kg\n" + "Gender: " + gender.charAt(0).toUpperCase() + gender.slice(1) + "\n" + "Body Condition Score: " + bcs + "\n\n" + "— Calculations —\n" + "Primary Result (Est. Adult Weight / Current): " + mainResult + "\n" + "Estimated Adult Weight: " + estimatedAdult + " kg\n" + "Estimated Monthly Growth: " + growth + "\n" + "Weight Category: " + category + "\n\n" + "Assumptions: Target Adult Age ~" + TARGET_ADULT_AGE_MONTHS + " months."; navigator.clipboard.writeText(copyText).then(function() { // Success feedback (optional) var copyButton = document.querySelector('button.btn-secondary[onclick="copyResults()"]'); // Find the copy button var originalText = copyButton.textContent; copyButton.textContent = 'Copied!'; setTimeout(function() { copyButton.textContent = originalText; }, 2000); }).catch(function(err) { console.error('Failed to copy text: ', err); // Fallback for older browsers or if clipboard API fails alert('Failed to copy results. Please copy manually.'); }); } function updateChart(currentAge, currentWeight, projectedAdultWeight) { if (chart) { chart.destroy(); } var labels = []; var dataCurrent = []; var dataProjectedAdult = []; // Generate data points for the chart for (var i = 1; i <= TARGET_ADULT_AGE_MONTHS + 6; i++) { // Show a bit beyond adult age labels.push(i + "m"); var ageRatio = i / TARGET_ADULT_AGE_MONTHS; var projectedWeight; if (i 0) { var growthPerMonth = (projectedAdultWeight – currentWeight) / remainingMonths; projectedWeight = currentWeight + (i – currentAge) * growthPerMonth; // Cap at projected adult weight projectedWeight = Math.min(projectedWeight, projectedAdultWeight); } else { // Already at or past target adult age projectedWeight = projectedAdultWeight; } } // Ensure weights don't go below reasonable minimums or above reasonable maximums projectedWeight = Math.max(projectedWeight, i * 1.5); // Minimum weight per month if (genderInput.value === 'male') { projectedWeight = Math.min(projectedWeight, 40); // Max reasonable weight } else { projectedWeight = Math.min(projectedWeight, 35); // Max reasonable weight } dataCurrent.push(projectedWeight); // Add a line for the target adult weight if (i >= TARGET_ADULT_AGE_MONTHS) { dataProjectedAdult.push(projectedAdultWeight); } else { dataProjectedAdult.push(null); // No data before target age for this line } } // Add current weight point explicitly if not already covered if (currentAge > 0 && currentAge <= labels.length) { dataCurrent[currentAge – 1] = currentWeight; } chart = new Chart(chartContext, { type: 'line', data: { labels: labels, datasets: [{ label: 'Current Weight Trend', data: dataCurrent, borderColor: 'rgba(0, 74, 153, 1)', backgroundColor: 'rgba(0, 74, 153, 0.2)', fill: false, tension: 0.1, pointRadius: 4, pointHoverRadius: 7 }, { label: 'Estimated Adult Weight', data: dataProjectedAdult, borderColor: 'rgba(40, 167, 69, 1)', backgroundColor: 'rgba(40, 167, 69, 0.2)', fill: false, tension: 0.1, pointRadius: 4, pointHoverRadius: 7, borderDash: [5, 5] // Dashed line for projection }] }, options: { responsive: true, maintainAspectRatio: false, scales: { y: { beginAtZero: false, title: { display: true, text: 'Weight (kg)' } }, x: { title: { display: true, text: 'Age (Months)' } } }, plugins: { title: { display: true, text: 'Airedale Terrier Weight Projection' }, tooltip: { callbacks: { label: function(context) { var label = context.dataset.label || ''; if (label) { label += ': '; } if (context.parsed.y !== null) { label += context.parsed.y.toFixed(1) + ' kg'; } return label; } } } } } }); } // Initial calculation on page load document.addEventListener('DOMContentLoaded', function() { // Check if Chart.js is loaded (it's not, so we need to simulate or use pure JS) // Since Chart.js is not allowed, we'll use pure SVG or Canvas API directly. // For simplicity and demonstration, let's use Canvas API directly. // Initial calculation calculateAiredaleWeight(); // Add event listeners for real-time updates ageMonthsInput.addEventListener('input', calculateAiredaleWeight); currentWeightKgInput.addEventListener('input', calculateAiredaleWeight); genderInput.addEventListener('change', calculateAiredaleWeight); bodyConditionScoreInput.addEventListener('change', calculateAiredaleWeight); }); // — Pure Canvas Implementation (No Chart.js) — // This replaces the Chart.js part. We'll draw a simple line graph. function updateChart(currentAge, currentWeight, projectedAdultWeight) { var canvas = document.getElementById('growthChart'); var ctx = canvas.getContext('2d'); ctx.clearRect(0, 0, canvas.width, canvas.height); // Clear previous drawing var dataPoints = []; var maxWeight = 0; var maxAge = TARGET_ADULT_AGE_MONTHS + 6; // Chart range // Generate data points for (var i = 1; i <= maxAge; i++) { var ageRatio = i / TARGET_ADULT_AGE_MONTHS; var projectedWeight; if (i 0) { var growthPerMonth = (projectedAdultWeight – currentWeight) / remainingMonths; projectedWeight = currentWeight + (i – currentAge) * growthPerMonth; projectedWeight = Math.min(projectedWeight, projectedAdultWeight); } else { projectedWeight = projectedAdultWeight; } } projectedWeight = Math.max(projectedWeight, i * 1.5); if (genderInput.value === 'male') { projectedWeight = Math.min(projectedWeight, 40); } else { projectedWeight = Math.min(projectedWeight, 35); } dataPoints.push({ age: i, weight: projectedWeight }); if (projectedWeight > maxWeight) { maxWeight = projectedWeight; } } // Ensure current weight is plotted accurately if (currentAge > 0 && currentAge 0 && TARGET_ADULT_AGE_MONTHS <= dataPoints.length) { dataPoints[TARGET_ADULT_AGE_MONTHS – 1].weight = projectedAdultWeight; } maxWeight = Math.max(maxWeight, projectedAdultWeight * 1.1); // Ensure space for adult weight line maxWeight = Math.max(maxWeight, 40); // Ensure y-axis goes high enough var padding = 40; var chartWidth = canvas.width – 2 * padding; var chartHeight = canvas.height – 2 * padding; // Draw Axes ctx.strokeStyle = '#ccc'; ctx.lineWidth = 1; ctx.beginPath(); ctx.moveTo(padding, padding); ctx.lineTo(padding, canvas.height – padding); // Y-axis ctx.lineTo(canvas.width – padding, canvas.height – padding); // X-axis ctx.stroke(); // Draw Labels and Ticks ctx.fillStyle = '#333'; ctx.font = '12px Arial'; ctx.textAlign = 'center'; // X-axis labels (Age) var numXTicks = 12; for (var i = 0; i <= numXTicks; i++) { var ageTick = Math.round((i / numXTicks) * maxAge); if (ageTick === 0) ageTick = 1; // Avoid 0 label var xPos = padding + (ageTick / maxAge) * chartWidth; ctx.fillText(ageTick + "m", xPos, canvas.height – padding + 15); ctx.beginPath(); ctx.moveTo(xPos, canvas.height – padding – 5); ctx.lineTo(xPos, canvas.height – padding + 5); ctx.stroke(); } // Y-axis labels (Weight) ctx.textAlign = 'right'; var numYTicks = 5; for (var i = 0; i <= numYTicks; i++) { var weightTick = Math.round((i / numYTicks) * maxWeight); var yPos = canvas.height – padding – (weightTick / maxWeight) * chartHeight; ctx.fillText(weightTick.toFixed(0) + "kg", padding – 10, yPos + 5); ctx.beginPath(); ctx.moveTo(padding – 5, yPos); ctx.lineTo(padding + 5, yPos); ctx.stroke(); } // Draw Chart Lines ctx.lineWidth = 2; // Current Weight Trend Line ctx.strokeStyle = 'rgba(0, 74, 153, 1)'; ctx.beginPath(); for (var i = 0; i < dataPoints.length; i++) { var point = dataPoints[i]; var xPos = padding + (point.age / maxAge) * chartWidth; var yPos = canvas.height – padding – (point.weight / maxWeight) * chartHeight; if (i === 0) { ctx.moveTo(xPos, yPos); } else { ctx.lineTo(xPos, yPos); } } ctx.stroke(); // Estimated Adult Weight Line (Dashed) ctx.strokeStyle = 'rgba(40, 167, 69, 1)'; ctx.setLineDash([5, 5]); ctx.beginPath(); for (var i = 0; i = TARGET_ADULT_AGE_MONTHS) { // Only draw after target age if (i === 0 || dataPoints[i-1].age < TARGET_ADULT_AGE_MONTHS) { // Start new line segment ctx.moveTo(xPos, yPos); } else { ctx.lineTo(xPos, yPos); } } } ctx.stroke(); ctx.setLineDash([]); // Reset line dash // Draw current weight point ctx.fillStyle = 'rgba(0, 74, 153, 1)'; ctx.beginPath(); var currentX = padding + (currentAge / maxAge) * chartWidth; var currentY = canvas.height – padding – (currentWeight / maxWeight) * chartHeight; ctx.arc(currentX, currentY, 5, 0, Math.PI * 2); ctx.fill(); // Draw estimated adult weight point ctx.fillStyle = 'rgba(40, 167, 69, 1)'; ctx.beginPath(); var adultX = padding + (TARGET_ADULT_AGE_MONTHS / maxAge) * chartWidth; var adultY = canvas.height – padding – (projectedAdultWeight / maxWeight) * chartHeight; ctx.arc(adultX, adultY, 5, 0, Math.PI * 2); ctx.fill(); // Add Title ctx.font = 'bold 16px Arial'; ctx.fillStyle = 'var(–primary-color)'; ctx.textAlign = 'center'; ctx.fillText('Airedale Terrier Weight Projection', canvas.width / 2, padding – 10); } // Initial calculation and chart draw on load document.addEventListener('DOMContentLoaded', function() { calculateAiredaleWeight(); updateChart( parseFloat(ageMonthsInput.value), parseFloat(currentWeightKgInput.value), parseFloat(estimatedAdultWeightDisplay.textContent) // Use the initial display value ); // Add event listeners for real-time updates ageMonthsInput.addEventListener('input', calculateAiredaleWeight); currentWeightKgInput.addEventListener('input', calculateAiredaleWeight); genderInput.addEventListener('change', calculateAiredaleWeight); bodyConditionScoreInput.addEventListener('change', calculateAiredaleWeight); // Recalculate and update chart on input change var inputs = [ageMonthsInput, currentWeightKgInput, genderInput, bodyConditionScoreInput]; inputs.forEach(function(input) { input.addEventListener('input', function() { calculateAiredaleWeight(); updateChart( parseFloat(ageMonthsInput.value), parseFloat(currentWeightKgInput.value), parseFloat(estimatedAdultWeightDisplay.textContent) ); }); input.addEventListener('change', function() { // For select elements calculateAiredaleWeight(); updateChart( parseFloat(ageMonthsInput.value), parseFloat(currentWeightKgInput.value), parseFloat(estimatedAdultWeightDisplay.textContent) ); }); }); });

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