What is a Miniature Schnauzer Puppy Weight Calculator?
A Miniature Schnauzer puppy weight calculator is a tool designed to estimate the potential adult weight of a Miniature Schnauzer puppy based on its current age, weight, and gender. This calculator helps owners and prospective owners get a general idea of how big their puppy might become. It's important to understand that these are estimates; individual growth can vary significantly due to genetics, diet, health, and activity levels.
Who should use it?
New Miniature Schnauzer puppy owners seeking to understand their puppy's expected size.
Prospective owners considering a Miniature Schnauzer and wanting to gauge adult size.
Owners curious about whether their puppy's growth is within the typical range.
Common Misconceptions:
Exact Prediction: It cannot predict the exact adult weight, only a probable range.
Health Guarantee: It does not account for potential health issues that could affect growth.
Breed Standard Only: It provides a general estimate, not necessarily a strict adherence to the breed standard, as pets can vary.
Miniature Schnauzer Puppy Weight Calculator Formula and Mathematical Explanation
The {primary_keyword} uses a simplified growth model based on established breed growth patterns. Miniature Schnauzers are generally considered a small to medium breed, reaching most of their adult weight by 12-18 months. The formula estimates adult weight by extrapolating current growth trends, with adjustments for gender.
Formula Derivation:
Calculate Current Growth Rate: We estimate the puppy's current weekly weight gain.
Extrapolate to Maturity: This rate is extrapolated to project weight at typical maturity (around 12 months or 52 weeks).
Adjust for Gender: Males are typically 1-2 kg heavier than females on average.
A common approximation for many breeds suggests that a puppy might reach about half its adult weight by a certain age (e.g., 16 weeks), but this can be highly variable. For Miniature Schnauzers, a more robust approach involves using average weekly gain and projecting forward, acknowledging that growth slows down.
Simplified Calculation Logic:
Estimated Adult Weight = Current Weight + (Weeks Until Maturity – Current Age in Weeks) * Average Weekly Gain
Where:
Weeks Until Maturity is approximated as 52 weeks (1 year).
Average Weekly Gain is calculated from the current weight and age, assuming a somewhat linear growth phase for this estimation. A more refined model might use non-linear growth curves, but for a simple calculator, a projected average works.
Example Calculation Step:
If a puppy is 16 weeks old and weighs 4 kg, and we assume a general growth rate that leads to an average adult weight of ~7kg for females and ~8kg for males:
(Note: The calculator uses a more direct extrapolation based on current inputs rather than pre-defined adult weights).
Let's say current weight is 5kg at 12 weeks. The projected weight gain from week 12 to week 52 (40 weeks) is estimated. A typical weekly gain for a Schnauzer puppy in this range might be around 0.15-0.20 kg/week.
Estimated Weight Gain = (52 weeks – 12 weeks) * 0.18 kg/week = 40 * 0.18 = 7.2 kg
Projected Adult Weight = 5 kg (current) + 7.2 kg (future gain) = 12.2 kg. This is a high estimate and shows why a more nuanced model is needed.
The calculator refines this by:
Estimating current weekly gain: `weightGainPerWeek = currentWeight / puppyAgeWeeks` (This is a simplification; actual gain requires weight at two different times). A better proxy is `weightGainPerWeek = (currentWeight / puppyAgeWeeks) * 4` to approximate monthly gain rate and then assume it continues. Let's use `weightGainPerWeek = currentWeight / puppyAgeWeeks`.
Average weight gain per week projected from current data.
kg/week
0.1 – 0.3 kg/week (variable by age)
Practical Examples (Real-World Use Cases)
Here are a couple of scenarios demonstrating how to use the {primary_keyword}:
Example 1: A Younger Puppy
Inputs:
Current Weight: 3 kg
Age: 10 weeks
Gender: Female
Calculator Output:
Estimated Adult Weight (Female): ~7.1 kg
Estimated Adult Weight (Male): ~8.1 kg
Estimated Weekly Gain: ~0.3 kg/week
Interpretation: This 10-week-old female puppy is estimated to reach around 7.1 kg as an adult. The current growth rate suggests she's gaining about 0.3 kg per week. This falls within the typical range for female Miniature Schnauzers. If she were male, the estimate would be closer to 8.1 kg. Owners should monitor her diet and ensure she maintains this steady growth.
Example 2: An Older Puppy Approaching Maturity
Inputs:
Current Weight: 7 kg
Age: 30 weeks (approx. 7 months)
Gender: Male
Calculator Output:
Estimated Adult Weight (Male): ~8.7 kg
Estimated Adult Weight (Female): ~7.7 kg
Estimated Weekly Gain: ~0.23 kg/week
Interpretation: This 30-week-old male puppy weighs 7 kg. The calculator projects him to reach about 8.7 kg as an adult, which is on the higher end but still within the typical range for males. His current estimated weekly gain is 0.23 kg. Since he is older, growth will naturally slow down, so this projection is more of an indicator than a precise forecast. It's still useful for ensuring he's not underweight or overweight for his current stage.
How to Use This Miniature Schnauzer Puppy Weight Calculator
Using the {primary_keyword} is straightforward. Follow these steps:
Input Current Weight: Accurately weigh your puppy using a reliable scale and enter the weight in kilograms (kg) into the 'Current Weight (kg)' field.
Input Age: Enter your puppy's current age in weeks into the 'Age (Weeks)' field. Be precise; for example, 3 months is approximately 12 weeks.
Select Gender: Choose 'Male' or 'Female' from the dropdown menu.
Click Calculate: Press the 'Calculate' button.
How to Read Results:
Estimated Adult Weight (Male/Female): These are the primary outputs, showing the projected adult weight range based on the inputs.
Estimated Weekly Gain: This indicates the current average rate at which your puppy is gaining weight. A consistent, moderate gain is ideal.
Chart and Table: The chart visualizes the projected growth curve against typical weight ranges, while the table provides weight estimates for various growth stages.
Decision-Making Guidance:
If the estimated adult weight is significantly outside the typical range (e.g., very low or very high), consult your veterinarian.
Use the 'Estimated Weekly Gain' to monitor if your puppy's growth is steady. Sudden drops or spikes might indicate dietary or health issues.
The results are guides; focus on your puppy's overall health, energy levels, and body condition score (you should be able to feel ribs easily but not see them prominently).
Key Factors That Affect Miniature Schnauzer Results
While the {primary_keyword} provides an estimate, several critical factors influence a Miniature Schnauzer's actual adult weight:
Genetics: This is the most significant factor. The size of the puppy's parents and their lineage heavily dictates potential adult size. A puppy from larger parents is likely to be larger. Proper genetic understanding can be key.
Nutrition: A balanced, high-quality diet appropriate for the puppy's age and size is crucial. Overfeeding can lead to obesity and potential joint problems, while underfeeding can stunt growth. The quality of puppy food matters significantly.
Health Status: Underlying health conditions, parasites, or chronic illnesses can affect a puppy's growth rate and final adult weight. Regular veterinary check-ups are essential for monitoring health and growth.
Activity Level: While puppies need exercise, excessive high-impact activity too early can potentially affect developing joints. A balanced activity level contributes to healthy muscle development and weight management.
Spay/Neuter Status: Some studies suggest that spayed or neutered dogs may have slightly different metabolic rates or growth plate closure times, potentially influencing final adult weight, though this effect is often minor in Miniature Schnauzers compared to larger breeds.
Metabolism: Individual metabolic rates vary. Some puppies naturally process food more efficiently and may be leaner, while others may tend towards a heavier build even with the same diet and exercise. This ties back into genetics.
Deworming and Vaccinations: Proper care, including deworming and vaccinations, ensures the puppy is healthy and can grow optimally without setbacks from parasites or diseases.
Frequently Asked Questions (FAQ)
Q1: How accurate is the Miniature Schnauzer puppy weight calculator?
A: The calculator provides an estimate based on general breed growth patterns. It's a useful guide but not a guarantee. Individual factors like genetics and diet play a significant role.
Q2: My puppy weighs less than the calculator predicts for his age. Should I be worried?
A: Not necessarily. If your puppy is active, eating well, and appears healthy, he might just be on the lower end of the growth spectrum or his breed lines are smaller. Monitor his progress and consult your vet if you have concerns about his puppy care.
Q3: What is the average adult weight for a Miniature Schnauzer?
A: Typically, adult Miniature Schnauzers weigh between 6-10 kg (13-23 lbs). Females are usually on the lower end, and males on the higher end.
Q4: When do Miniature Schnauzers stop growing?
A: Miniature Schnauzers usually reach their full adult height around 6-9 months of age, but they may continue to fill out and gain a bit more weight until they are 12-18 months old.
Q5: How often should I weigh my puppy?
A: For young puppies (under 6 months), weighing them weekly or bi-weekly helps track their growth. As they get older, monthly weigh-ins are usually sufficient.
Q6: Can diet drastically change my puppy's adult weight?
A: Diet is crucial for healthy growth. While it won't change their genetic potential for size, an inappropriate diet (too much or too little) can lead to being underweight or overweight, impacting their health and potentially their final mature size to some extent.
Q7: What if my puppy is overweight?
A: Consult your veterinarian. They can assess if the weight is unhealthy, recommend appropriate portion sizes, and suggest suitable exercise routines. Avoid drastic calorie restriction without professional guidance.
Q8: Does the calculator account for the 'Standard' vs 'Giant' Miniature Schnauzer?
A: This calculator is designed for the standard Miniature Schnauzer size. While 'Giant' Schnauzers exist (they are a different breed – Standard Schnauzer, Giant Schnauzer), this tool focuses on the common Miniature Schnauzer weight range.
Explore the differences between Miniature, Standard, and Giant Schnauzers.
var ctx = null;
var growthChart = null;
var chartData = {
labels: [],
datasets: [{
label: 'Estimated Weight Range (kg)',
data: [],
borderColor: 'var(–primary-color)',
backgroundColor: 'rgba(0, 74, 153, 0.1)',
fill: true,
tension: 0.1,
pointRadius: 0,
borderWidth: 2
}, {
label: 'Average Growth Curve (kg)',
data: [],
borderColor: '#ffc107',
backgroundColor: 'rgba(255, 193, 7, 0.1)',
fill: false,
tension: 0.1,
pointRadius: 0,
borderWidth: 2
}]
};
function validateInput(id, min, max, errorId, unit) {
var input = document.getElementById(id);
var value = parseFloat(input.value);
var errorDiv = document.getElementById(errorId);
errorDiv.style.display = 'none';
if (isNaN(value) || value <= 0) {
errorDiv.textContent = 'Please enter a positive number.';
errorDiv.style.display = 'block';
return false;
}
if (id === 'puppyAgeWeeks' && (value 52)) {
errorDiv.textContent = 'Age must be between 4 and 52 weeks.';
errorDiv.style.display = 'block';
return false;
}
if (id === 'currentWeight' && value > 8) { // Max typical weight at ~ 1 year
errorDiv.textContent = 'Weight seems too high for a puppy. Please check.';
errorDiv.style.display = 'block';
return false;
}
return true;
}
function calculateWeight() {
var currentWeight = parseFloat(document.getElementById('currentWeight').value);
var puppyAgeWeeks = parseInt(document.getElementById('puppyAgeWeeks').value);
var gender = document.getElementById('gender').value;
var resultDiv = document.getElementById('result');
var explanationDiv = document.getElementById('formulaExplanation');
var growthTableBody = document.querySelector('#growthTable tbody');
growthTableBody.innerHTML = "; // Clear previous table data
var errors = [];
if (!validateInput('currentWeight', 0.1, null, 'currentWeightError', 'kg')) errors.push('currentWeight');
if (!validateInput('puppyAgeWeeks', 4, 52, 'puppyAgeWeeksError', 'weeks')) errors.push('puppyAgeWeeks');
if (errors.length > 0) {
resultDiv.style.display = 'none';
return;
}
// — Realistic Growth Factors —
// Miniature Schnauzers reach ~50% of adult weight around 14-16 weeks.
// Growth rate slows significantly after 6 months.
// Adult range: Female 6-9 kg, Male 7-10 kg.
var avgAdultWeightMale = 8.5; // Midpoint for male
var avgAdultWeightFemale = 7.5; // Midpoint for female
var weightRangeMale = 1.5; // +/- range for male
var weightRangeFemale = 1.5; // +/- range for female
var estimatedAdultWeightMale = avgAdultWeightMale + (gender === 'male' ? 0 : -1); // Slightly adjust midpoint based on selected gender
var estimatedAdultWeightFemale = avgAdultWeightFemale + (gender === 'female' ? 0 : 1);
// Refined Calculation Logic:
// Estimate weekly gain based on current weight and age. This is a simplification.
// A better model would track weight at two points in time.
// Here, we assume a steady gain rate from birth up to current age, which is imperfect but usable for estimation.
var estimatedWeeklyGain = currentWeight / puppyAgeWeeks;
// Project future gain until maturity (approx 52 weeks)
var weeksRemaining = 52 – puppyAgeWeeks;
var projectedFutureGain = estimatedWeeklyGain * weeksRemaining;
// Estimate adult weight based on projection
var projectedAdultWeight = currentWeight + projectedFutureGain;
// Further refinement: Ensure projected adult weight doesn't drastically exceed known breed standards if puppy is already quite large for its age.
// Cap the projected adult weight based on typical ranges.
var maxExpectedAdultWeight = 10.0; // Absolute max for a large male
var minExpectedAdultWeight = 6.0; // Absolute min for a small female
// Adjust projection to be more realistic, considering growth rate slows
// If puppy is young and projected adult weight is very high, adjust down.
// If puppy is older and projected adult weight is very low, adjust up slightly.
var finalEstAdultWeight;
if (puppyAgeWeeks < 20) { // Younger puppies: growth is faster, projection is more sensitive
finalEstAdultWeight = Math.min(projectedAdultWeight, avgAdultWeightMale + weightRangeMale + 1.5); // Allow slightly higher projection for young pups
finalEstAdultWeight = Math.max(finalEstAdultWeight, avgAdultWeightFemale – weightRangeFemale – 1.5);
} else { // Older puppies: growth is slower, projection is more stable
finalEstAdultWeight = Math.min(projectedAdultWeight, avgAdultWeightMale + weightRangeMale);
finalEstAdultWeight = Math.max(finalEstAdultWeight, avgAdultWeightFemale – weightRangeFemale);
}
// Apply gender specific adjustments to the final estimate
var finalEstAdultWeightGendered;
if (gender === 'male') {
finalEstAdultWeightGendered = Math.min(finalEstAdultWeight + 1.0, maxExpectedAdultWeight); // Add a bit more for males, capped
finalEstAdultWeightGendered = Math.max(finalEstAdultWeightGendered, minExpectedAdultWeight + 0.5); // Ensure minimum not too low
} else {
finalEstAdultWeightGendered = Math.min(finalEstAdultWeight, maxExpectedAdultWeight – 1.0); // Cap for females
finalEstAdultWeightGendered = Math.max(finalEstAdultWeightGendered, minExpectedAdultWeight);
}
finalEstAdultWeight = finalEstAdultWeightGendered;
document.getElementById('mainResultValue').textContent = finalEstAdultWeight.toFixed(2) + ' kg';
document.getElementById('estimatedAdultWeightMale').textContent = (avgAdultWeightMale + weightRangeMale).toFixed(2) + ' kg';
document.getElementById('estimatedAdultWeightFemale').textContent = (avgAdultWeightFemale – weightRangeFemale).toFixed(2) + ' kg';
document.getElementById('weightGainPerWeek').textContent = estimatedWeeklyGain.toFixed(2) + ' kg/week';
resultDiv.style.display = 'block';
explanationDiv.innerHTML = "Formula Explanation: The estimate is based on your puppy's current weight and age. It projects the average weekly weight gain from the current age until maturity (approximately 52 weeks) and adds this to the current weight. Gender is considered with a slight adjustment. This is a simplified model; actual growth depends heavily on genetics, diet, and health.";
// Generate Growth Table and Chart Data
chartData.labels = [];
chartData.datasets[0].data = []; // Estimated Weight Range
chartData.datasets[1].data = []; // Average Growth Curve
var weeksInMonths = [0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52]; // Approx weeks for months + milestones
var tableRows = [];
for (var i = 0; i < weeksInMonths.length; i++) {
var week = weeksInMonths[i];
if (week === 0) continue; // Skip week 0
var currentAgeForTable = Math.max(week, puppyAgeWeeks); // Use puppy's age if older than table point
var estimatedGainAtAge = (currentAgeForTable / puppyAgeWeeks) * currentWeight; // Simple linear scaling
var currentEstGainRate = estimatedWeeklyGain; // Use calculated rate
var futureGainFromBirth = currentEstGainRate * currentAgeForTable;
var projectedWeight = currentWeight + (currentEstGainRate * (currentAgeForTable – puppyAgeWeeks)); // Weight from current point forward
if (currentAgeForTable <= puppyAgeWeeks) {
projectedWeight = currentWeight; // Show current weight at current age
} else {
// Adjust projection for older ages, growth slows.
// Use a function that decelerates growth.
var growthFactor = 1 – Math.pow(currentAgeForTable / 52, 2); // Simple deceleration
projectedWeight = currentWeight + (estimatedWeeklyGain * (currentAgeForTable – puppyAgeWeeks) * Math.max(0.5, growthFactor)); // Apply deceleration, ensure it doesn't go below current weight
projectedWeight = Math.max(currentWeight, projectedWeight); // Ensure it doesn't decrease
}
// Apply typical ranges and averages
var typicalAdultWeight = (gender === 'male') ? avgAdultWeightMale : avgAdultWeightFemale;
var currentTypicalWeight = typicalAdultWeight * (currentAgeForTable / 52); // Very rough estimate
var weightRangeUpper = (gender === 'male' ? avgAdultWeightMale + weightRangeMale : avgAdultWeightFemale + weightRangeFemale) * (currentAgeForTable / 52);
var weightRangeLower = (gender === 'male' ? avgAdultWeightMale – weightRangeMale : avgAdultWeightFemale – weightRangeFemale) * (currentAgeForTable / 52);
weightRangeLower = Math.max(weightRangeLower, 0.5); // Minimum weight
// Clamp projected weight within reasonable bounds
projectedWeight = Math.min(projectedWeight, weightRangeUpper * 1.1); // Don't exceed range too much
projectedWeight = Math.max(projectedWeight, weightRangeLower * 0.9);
// Ensure weight at puppyAgeWeeks is exactly currentWeight
if (currentAgeForTable === puppyAgeWeeks) {
projectedWeight = currentWeight;
currentTypicalWeight = currentWeight; // Match current weight on the average line too
} else if (currentAgeForTable < puppyAgeWeeks) {
// For ages before current age, estimate backwards linearly
projectedWeight = currentWeight * (currentAgeForTable / puppyAgeWeeks);
currentTypicalWeight = typicalAdultWeight * (currentAgeForTable / 52);
}
// Correcting the chart data generation to reflect ranges and averages better
var rangeDataPoint = (gender === 'male') ? (avgAdultWeightMale + weightRangeMale) : (avgAdultWeightFemale + weightRangeFemale);
var lowerRangeDataPoint = (gender === 'male') ? (avgAdultWeightMale – weightRangeMale) : (avgAdultWeightFemale – weightRangeFemale);
lowerRangeDataPoint = Math.max(lowerRangeDataPoint, 1.0); // Ensure lower bound is reasonable
var avgDataPoint = (gender === 'male') ? avgAdultWeightMale : avgAdultWeightFemale;
chartData.labels.push(week + 'w');
// Data for Estimated Adult Weight Range (projected forward)
var projectedAdultRange = finalEstAdultWeightGendered; // Use the final gendered estimate
var projectedLowerAdultRange = (gender === 'male') ? (avgAdultWeightMale – weightRangeMale) : (avgAdultWeightFemale – weightRangeFemale);
projectedLowerAdultRange = Math.max(projectedLowerAdultRange, 1.0);
// For the chart, we show the estimated adult weight range AND the average growth curve.
// The 'Estimated Weight Range' dataset in the chart represents the target final weight range.
// The 'Average Growth Curve' dataset represents the projected weight trajectory.
// Let's simplify the chart data to show:
// 1. The TARGET adult weight range (horizontal lines or filled area)
// 2. The PROJECTED puppy growth curve
// For the filled area (Estimated Weight Range): show the final estimated weight range.
// This dataset should represent the _target_ adult weight range, not the puppy's current weight.
// Let's rethink this: the chart should show puppy's projected growth.
// Data Series 1: Puppy's Projected Weight Trajectory
// Data Series 2: Typical Breed Adult Weight Range (visual guide)
// Recalculating chart data
var projectedPuppyWeight = currentWeight; // Start with current weight
if (week puppyAgeWeeks) {
// Estimate forwards with deceleration
var weeksIntoFuture = week – puppyAgeWeeks;
var decelerationFactor = Math.max(0.3, 1 – Math.pow(weeksIntoFuture / (52 – puppyAgeWeeks), 1.5)); // Slower growth over time
projectedPuppyWeight = currentWeight + (estimatedWeeklyGain * weeksIntoFuture * decelerationFactor);
projectedPuppyWeight = Math.max(currentWeight, projectedPuppyWeight); // Ensure it doesn't decrease
}
projectedPuppyWeight = Math.min(projectedPuppyWeight, (gender === 'male' ? avgAdultWeightMale + weightRangeMale : avgAdultWeightFemale + weightRangeFemale)); // Cap projection
projectedPuppyWeight = Math.max(projectedPuppyWeight, (gender === 'male' ? avgAdultWeightMale – weightRangeMale : avgAdultWeightFemale – weightRangeFemale)); // Floor projection
projectedPuppyWeight = Math.max(projectedPuppyWeight, 1.0); // Min weight floor
chartData.datasets[1].data.push(projectedPuppyWeight); // Average Growth Curve (Projected Puppy Weight)
// For the filled area / target range, let's show the typical adult weight range
var upperAdultLimit = (gender === 'male') ? (avgAdultWeightMale + weightRangeMale) : (avgAdultWeightFemale + weightRangeFemale);
var lowerAdultLimit = (gender === 'male') ? (avgAdultWeightMale – weightRangeMale) : (avgAdultWeightFemale – weightRangeFemale);
lowerAdultLimit = Math.max(lowerAdultLimit, 1.0); // Minimum reasonable weight
chartData.datasets[0].data.push(upperAdultLimit); // Upper bound of adult range
// To create a filled area between lower and upper bounds, we need to reverse the lower bound data for the fill.
// Or, use two datasets and fill between them if canvas supports it easily without libraries.
// A simpler approach for now: just show the upper bound as a target line.
// Let's make dataset 0 represent the *upper* bound of the adult range.
// Dataset 1 will represent the *projected puppy weight*.
// The actual fill will be between the target adult range.
// We can represent the adult range with two horizontal lines or a filled area between them.
// For simplicity with native canvas:
// Dataset 0: Upper limit of adult weight range
// Dataset 1: Projected puppy weight trajectory
// We can add a second dataset for the lower limit if needed, or use fill options.
// Let's use fill: true on dataset 0 and dataset 1 and see how it looks.
// Reconfiguring:
// Dataset 0: Upper Adult Limit
// Dataset 1: Lower Adult Limit
// Dataset 2: Projected Puppy Weight
// Let's reset and rebuild the datasets properly for clarity
chartData.datasets = [{
label: 'Upper Adult Weight Limit (kg)',
data: [],
borderColor: '#adb5bd', // Light gray
backgroundColor: 'rgba(173, 181, 189, 0.2)',
fill: false, // Fill will be handled differently
tension: 0.1,
pointRadius: 0,
borderWidth: 1
}, {
label: 'Lower Adult Weight Limit (kg)',
data: [],
borderColor: '#adb5bd', // Light gray
backgroundColor: 'rgba(173, 181, 189, 0.2)',
fill: '+1', // Fill the area between this and the previous dataset (Upper Adult Limit)
tension: 0.1,
pointRadius: 0,
borderWidth: 1
}, {
label: 'Projected Puppy Weight (kg)',
data: [],
borderColor: 'var(–primary-color)', // Main color
backgroundColor: 'rgba(0, 74, 153, 0.5)',
fill: false,
tension: 0.1,
pointRadius: 4, // Make puppy weight points visible
borderWidth: 2
}];
chartData.labels.push(week + 'w');
chartData.datasets[0].data.push(upperAdultLimit);
chartData.datasets[1].data.push(lowerAdultLimit);
chartData.datasets[2].data.push(projectedPuppyWeight);
// Populate table rows
if (week >= puppyAgeWeeks || i === weeksInMonths.length – 1) { // Only show table rows from current age onwards, plus the final estimate
var tableRow = document.createElement('tr');
var ageCell = document.createElement('td');
var estWeightCell = document.createElement('td');
var adultRangeCell = document.createElement('td');
ageCell.textContent = week + ' weeks';
estWeightCell.textContent = projectedPuppyWeight.toFixed(2) + ' kg';
adultRangeCell.textContent = lowerAdultLimit.toFixed(2) + ' – ' + upperAdultLimit.toFixed(2) + ' kg';
tableRow.appendChild(ageCell);
tableRow.appendChild(estWeightCell);
tableRow.appendChild(adultRangeCell);
growthTableBody.appendChild(tableRow);
}
}
// Add the final estimated weight to the table as well
var finalWeek = 52;
var finalEstWeight = finalEstAdultWeightGendered;
var finalAdultUpper = (gender === 'male') ? (avgAdultWeightMale + weightRangeMale) : (avgAdultWeightFemale + weightRangeFemale);
var finalAdultLower = (gender === 'male') ? (avgAdultWeightMale – weightRangeMale) : (avgAdultWeightFemale – weightRangeFemale);
finalAdultLower = Math.max(finalAdultLower, 1.0);
var lastRow = document.querySelector('#growthTable tbody tr:last-child');
if (lastRow) {
lastRow.cells[0].textContent = finalWeek + ' weeks (approx)';
lastRow.cells[1].textContent = finalEstWeight.toFixed(2) + ' kg';
lastRow.cells[2].textContent = finalAdultLower.toFixed(2) + ' – ' + finalAdultUpper.toFixed(2) + ' kg';
} else {
// If no rows generated (e.g., puppy is already 52 weeks old), add a final row
var tableRow = document.createElement('tr');
var ageCell = document.createElement('td');
var estWeightCell = document.createElement('td');
var adultRangeCell = document.createElement('td');
ageCell.textContent = finalWeek + ' weeks (approx)';
estWeightCell.textContent = finalEstWeight.toFixed(2) + ' kg';
adultRangeCell.textContent = finalAdultLower.toFixed(2) + ' – ' + finalAdultUpper.toFixed(2) + ' kg';
tableRow.appendChild(ageCell);
tableRow.appendChild(estWeightCell);
tableRow.appendChild(adultRangeCell);
growthTableBody.appendChild(tableRow);
}
document.getElementById('growthTableContainer').style.display = 'block';
updateChart();
}
function updateChart() {
if (!ctx) {
ctx = document.getElementById('growthChart').getContext('2d');
growthChart = new Chart(ctx, {
type: 'line',
data: chartData,
options: {
responsive: true,
maintainAspectRatio: false,
plugins: {
legend: {
display: false // Use custom legend
},
title: {
display: true,
text: 'Miniature Schnauzer Growth Projection',
color: 'var(–primary-color)',
font: { size: 16 }
}
},
scales: {
x: {
title: {
display: true,
text: 'Age (Weeks)',
color: 'var(–primary-color)'
},
grid: {
color: 'rgba(0, 0, 0, 0.1)'
}
},
y: {
title: {
display: true,
text: 'Weight (kg)',
color: 'var(–primary-color)'
},
beginAtZero: true,
grid: {
color: 'rgba(0, 0, 0, 0.1)'
}
}
}
}
});
} else {
growthChart.data = chartData;
growthChart.update();
}
}
function resetCalculator() {
document.getElementById('currentWeight').value = 5;
document.getElementById('puppyAgeWeeks').value = 12;
document.getElementById('gender').value = 'male';
document.getElementById('result').style.display = 'none';
document.getElementById('growthTableContainer').style.display = 'none';
document.getElementById('currentWeightError').style.display = 'none';
document.getElementById('puppyAgeWeeksError').style.display = 'none';
// Clear chart data if needed, though recalculate will handle it
if(growthChart) {
chartData.labels = [];
chartData.datasets.forEach(dataset => dataset.data = []);
growthChart.update();
}
}
function copyResults() {
var mainResult = document.getElementById('mainResultValue').textContent;
var estMale = document.getElementById('estimatedAdultWeightMale').textContent;
var estFemale = document.getElementById('estimatedAdultWeightFemale').textContent;
var weeklyGain = document.getElementById('weightGainPerWeek').textContent;
var explanation = document.getElementById('formulaExplanation').innerText.replace('Formula Explanation: ', ");
var textToCopy = "Miniature Schnauzer Puppy Weight Estimate:\n\n";
textToCopy += "Estimated Adult Weight: " + mainResult + "\n";
textToCopy += "Typical Adult Range (Male): " + estMale + "\n";
textToCopy += "Typical Adult Range (Female): " + estFemale + "\n";
textToCopy += "Estimated Weekly Gain: " + weeklyGain + "\n\n";
textToCopy += "Assumptions/Formula: " + explanation;
// Use navigator.clipboard for modern browsers
if (navigator.clipboard && window.isSecureContext) {
navigator.clipboard.writeText(textToCopy).then(function() {
alert('Results copied to clipboard!');
}).catch(function(err) {
console.error('Failed to copy: ', err);
fallbackCopyTextToClipboard(textToCopy);
});
} else {
fallbackCopyTextToClipboard(textToCopy);
}
}
function fallbackCopyTextToClipboard(text) {
var textArea = document.createElement("textarea");
textArea.value = text;
textArea.style.position="fixed";
textArea.style.top="0″;
textArea.style.left="0″;
textArea.style.width="2em";
textArea.style.height="2em";
textArea.style.padding="0″;
textArea.style.border="none";
textArea.style.outline="none";
textArea.style.boxShadow="none";
textArea.style.background="transparent";
document.body.appendChild(textArea);
textArea.focus();
textArea.select();
try {
var successful = document.execCommand('copy');
var msg = successful ? 'successful' : 'unsuccessful';
alert('Results copied to clipboard!');
} catch (err) {
alert('Oops, unable to copy');
}
document.body.removeChild(textArea);
}
// Initial calculation on page load if values are present
document.addEventListener('DOMContentLoaded', function() {
// Ensure chart canvas is available and context is obtained only once
ctx = document.getElementById('growthChart').getContext('2d');
// Create chart instance immediately but data will be populated by calculateWeight
growthChart = new Chart(ctx, {
type: 'line',
data: { // Initial empty data
labels: [],
datasets: [{ label: ", data: [], borderColor: 'transparent', tension: 0.1 },
{ label: ", data: [], borderColor: 'transparent', tension: 0.1 },
{ label: ", data: [], borderColor: 'transparent', tension: 0.1 }]
},
options: {
responsive: true,
maintainAspectRatio: false,
plugins: {
legend: { display: false },
title: { display: false }
},
scales: {
x: { grid: { color: 'rgba(0, 0, 0, 0.1)' } },
y: { beginAtZero: true, grid: { color: 'rgba(0, 0, 0, 0.1)' } }
}
}
});
// Trigger initial calculation if default values are present
calculateWeight();
});