#dog-bmi-calculator {
max-width: 700px;
margin: 20px auto;
padding: 20px;
background: #ffffff;
border-radius: 8px;
box-shadow: 0 2px 4px rgba(0,0,0,0.1);
font-family: -apple-system, BlinkMacSystemFont, ‘Arial’, sans-serif;
color: #333333;
box-sizing: border-box;
line-height: 1.5;
}
h2 {
text-align: center;
margin: 0 0 15px;
font-size: 1.5rem;
font-weight: 600;
color: #222222;
}
p {
text-align: center;
color: #666666;
font-size: 0.9rem;
margin-bottom: 20px;
}
.form-group {
margin-bottom: 20px;
position: relative;
}
label {
display: block;
margin-bottom: 6px;
font-size: 0.9rem;
font-weight: 600;
color: #333333;
}
input[type=”number”], select, #breed-input {
width: 100%;
padding: 10px;
border: 1px solid #dddddd;
border-radius: 4px;
font-size: 0.9rem;
box-sizing: border-box;
transition: border-color 0.3s;
}
input:focus, select:focus, #breed-input:focus {
border-color: #0073aa;
outline: none;
}
.unit-toggle {
display: flex;
gap: 10px;
margin-top: 5px;
}
.unit-toggle label {
font-weight: normal;
font-size: 0.85rem;
cursor: pointer;
}
.autocomplete-list {
position: absolute;
width: 100%;
max-height: 150px;
overflow-y: auto;
background: #ffffff;
border: 1px solid #dddddd;
border-radius: 4px;
z-index: 10;
margin-top: 2px;
box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.autocomplete-item {
padding: 8px;
font-size: 0.9rem;
cursor: pointer;
}
.autocomplete-item:hover {
background: #f0f0f0;
}
.tooltip {
position: relative;
display: inline-block;
margin-left: 5px;
cursor: help;
}
.tooltip .tooltip-text {
visibility: hidden;
width: 200px;
background: #333333;
color: #ffffff;
text-align: center;
border-radius: 4px;
padding: 6px;
position: absolute;
z-index: 10;
bottom: 125%;
left: 50%;
transform: translateX(-50%);
opacity: 0;
transition: opacity 0.3s;
font-size: 0.75rem;
}
.tooltip:hover .tooltip-text {
visibility: visible;
opacity: 1;
}
.button-group {
display: flex;
gap: 12px;
justify-content: center;
margin: 20px 0;
}
button {
padding: 10px 20px;
border: none;
border-radius: 4px;
cursor: pointer;
font-size: 0.9rem;
font-weight: 500;
transition: background 0.3s;
}
#calculate-btn {
background: #0073aa;
color: #ffffff;
}
#calculate-btn:hover {
background: #005177;
}
#reset-btn {
background: #6c757d;
color: #ffffff;
}
#reset-btn:hover {
background: #5a6268;
}
#copy-btn {
background: #28a745;
color: #ffffff;
}
#copy-btn:hover {
background: #218838;
}
#result {
margin-top: 20px;
padding: 15px;
border-radius: 4px;
font-size: 0.9rem;
line-height: 1.6;
min-height: 30px;
}
#result.success {
background: #e6f4ea;
border: 1px solid #28a745;
}
#result.error {
background: #f8d7da;
border: 1px solid #dc3545;
}
.bmi-chart {
margin-top: 15px;
position: relative;
height: 50px;
background: #f0f0f0;
border-radius: 4px;
overflow: hidden;
}
.bmi-range {
position: absolute;
height: 100%;
color: #ffffff;
text-align: center;
line-height: 50px;
font-size: 0.8rem;
}
.bmi-underweight {
background: #007bff;
}
.bmi-healthy {
background: #28a745;
}
.bmi-overweight {
background: #dc3545;
}
.bmi-marker {
position: absolute;
top: -10px;
width: 2px;
height: 70px;
background: #333333;
transform: translateX(-50%);
}
.bmi-marker::after {
content: ‘Your Dog’s BMI’;
position: absolute;
top: -30px;
left: 50%;
transform: translateX(-50%);
font-size: 0.75rem;
white-space: nowrap;
}
.health-tips {
margin-top: 15px;
font-size: 0.85rem;
}
.health-tips ul {
padding-left: 20px;
}
noscript {
display: block;
color: #dc3545;
text-align: center;
margin-top: 15px;
font-size: 0.9rem;
}
@media (max-width: 600px) {
#dog-bmi-calculator {
margin: 10px;
padding: 15px;
}
h2 {
font-size: 1.3rem;
}
.button-group {
flex-direction: column;
}
button {
width: 100%;
}
}
`;
resultDiv.innerHTML = `
BMI: ${bmi.toFixed(1)}
Status: ${status}
Breed: ${breed.name}
Healthy BMI Range: ${min}–${max}
Weight: ${weight.toFixed(1)} ${weightUnit} (${(weightKg * 2.20462).toFixed(1)} lb / ${weightKg.toFixed(1)} kg)
Height: ${height.toFixed(1)} ${heightUnit} (${(heightM * 39.3701).toFixed(1)} in / ${(heightM * 100).toFixed(1)} cm)
BMI Chart: ${chart}
Dog BMI Calculator
Check if your dog’s weight is healthy for its breed. Always consult a vet for professional advice.
Enter your dog’s breed, weight, and height, then click “Calculate”.
JavaScript is disabled. Please enable it to use the calculator.
(function() {
if (!document.getElementById(‘dog-bmi-calculator’)) return;
const form = document.getElementById(‘calc-form’);
const breedInput = document.getElementById(‘breed-input’);
const breedValue = document.getElementById(‘breed-value’);
const autocompleteList = document.getElementById(‘autocomplete-list’);
const weightInput = document.getElementById(‘weight’);
const weightUnits = document.getElementsByName(‘weight-unit’);
const heightInput = document.getElementById(‘height’);
const heightUnits = document.getElementsByName(‘height-unit’);
const resultDiv = document.getElementById(‘result’);
const breeds = [
{ name: ‘Affenpinscher’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Afghan Hound’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Airedale Terrier’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Akita’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Alaskan Malamute’, bmiRange: { min: 75, max: 95 } },
{ name: ‘American Bulldog’, bmiRange: { min: 55, max: 75 } },
{ name: ‘American Eskimo Dog’, bmiRange: { min: 25, max: 35 } },
{ name: ‘American Foxhound’, bmiRange: { min: 55, max: 75 } },
{ name: ‘American Hairless Terrier’, bmiRange: { min: 15, max: 25 } },
{ name: ‘American Staffordshire Terrier’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Anatolian Shepherd Dog’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Appenzeller Sennenhund’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Australian Cattle Dog’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Australian Shepherd’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Australian Terrier’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Azawakh’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Barbet’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Basenji’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Basset Hound’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Beagle’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Bearded Collie’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Beauceron’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Bedlington Terrier’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Belgian Laekenois’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Belgian Malinois’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Belgian Sheepdog’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Belgian Tervuren’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Bergamasco Sheepdog’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Berger Picard’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Bernese Mountain Dog’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Bichon Frise’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Black and Tan Coonhound’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Black Russian Terrier’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Bloodhound’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Bluetick Coonhound’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Boerboel’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Border Collie’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Border Terrier’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Borzoi’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Boston Terrier’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Bouvier des Flandres’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Boxer’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Boykin Spaniel’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Bracco Italiano’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Briard’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Brittany’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Brussels Griffon’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Bull Terrier’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Bulldog’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Bullmastiff’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Cairn Terrier’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Canaan Dog’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Cane Corso’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Cardigan Welsh Corgi’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Cavalier King Charles Spaniel’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Cesky Terrier’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Chesapeake Bay Retriever’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Chihuahua’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Chinese Crested’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Chinese Shar-Pei’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Chow Chow’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Clumber Spaniel’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Cocker Spaniel’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Collie’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Coton de Tulear’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Curly-Coated Retriever’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Dachshund’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Dalmatian’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Dandie Dinmont Terrier’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Danish-Swedish Farmdog’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Doberman Pinscher’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Dogue de Bordeaux’, bmiRange: { min: 75, max: 95 } },
{ name: ‘English Cocker Spaniel’, bmiRange: { min: 25, max: 35 } },
{ name: ‘English Foxhound’, bmiRange: { min: 55, max: 75 } },
{ name: ‘English Setter’, bmiRange: { min: 55, max: 75 } },
{ name: ‘English Springer Spaniel’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Entlebucher Mountain Dog’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Field Spaniel’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Finnish Lapphund’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Finnish Spitz’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Flat-Coated Retriever’, bmiRange: { min: 55, max: 75 } },
{ name: ‘French Bulldog’, bmiRange: { min: 25, max: 35 } },
{ name: ‘German Pinscher’, bmiRange: { min: 25, max: 35 } },
{ name: ‘German Shepherd Dog’, bmiRange: { min: 55, max: 75 } },
{ name: ‘German Shorthaired Pointer’, bmiRange: { min: 55, max: 75 } },
{ name: ‘German Wirehaired Pointer’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Giant Schnauzer’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Glen of Imaal Terrier’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Golden Retriever’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Gordon Setter’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Grand Basset Griffon Vendéen’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Great Dane’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Great Pyrenees’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Greater Swiss Mountain Dog’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Greyhound’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Harrier’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Havanese’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Ibizan Hound’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Icelandic Sheepdog’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Irish Red and White Setter’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Irish Setter’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Irish Terrier’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Irish Water Spaniel’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Irish Wolfhound’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Italian Greyhound’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Japanese Chin’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Keeshond’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Kerry Blue Terrier’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Komondor’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Kuvasz’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Labrador Retriever’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Lagotto Romagnolo’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Lakeland Terrier’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Lancashire Heeler’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Leonberger’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Lhasa Apso’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Lowchen’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Maltese’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Manchester Terrier’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Mastiff’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Miniature American Shepherd’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Miniature Bull Terrier’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Miniature Pinscher’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Miniature Schnauzer’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Mixed/Other’, bmiRange: { min: 0, max: 3 } },
{ name: ‘Mudi’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Neapolitan Mastiff’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Newfoundland’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Norfolk Terrier’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Norwegian Buhund’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Norwegian Elkhound’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Norwegian Lundehund’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Norwich Terrier’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Nova Scotia Duck Tolling Retriever’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Old English Sheepdog’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Otterhound’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Papillon’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Parson Russell Terrier’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Pekingese’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Pembroke Welsh Corgi’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Petit Basset Griffon Vendéen’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Pharaoh Hound’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Plott Hound’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Pointer’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Polish Lowland Sheepdog’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Pomeranian’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Poodle’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Portuguese Podengo Pequeno’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Portuguese Water Dog’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Pug’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Puli’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Pumi’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Pyrenean Mastiff’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Pyrenean Shepherd’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Rat Terrier’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Redbone Coonhound’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Rhodesian Ridgeback’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Rottweiler’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Russell Terrier’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Saint Bernard’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Saluki’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Samoyed’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Schipperke’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Scottish Deerhound’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Scottish Terrier’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Sealyham Terrier’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Shetland Sheepdog’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Shiba Inu’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Shih Tzu’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Siberian Husky’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Silky Terrier’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Skye Terrier’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Sloughi’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Smooth Fox Terrier’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Soft Coated Wheaten Terrier’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Spanish Water Dog’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Spinone Italiano’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Staffordshire Bull Terrier’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Standard Schnauzer’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Sussex Spaniel’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Swedish Vallhund’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Tibetan Mastiff’, bmiRange: { min: 75, max: 95 } },
{ name: ‘Tibetan Spaniel’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Tibetan Terrier’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Toy Fox Terrier’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Treeing Walker Coonhound’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Vizsla’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Weimaraner’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Welsh Springer Spaniel’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Welsh Terrier’, bmiRange: { min: 15, max: 25 } },
{ name: ‘West Highland White Terrier’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Whippet’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Wire Fox Terrier’, bmiRange: { min: 15, max: 25 } },
{ name: ‘Wirehaired Pointing Griffon’, bmiRange: { min: 55, max: 75 } },
{ name: ‘Wirehaired Vizsla’, bmiRange: { min: 35, max: 55 } },
{ name: ‘Xoloitzcuintli’, bmiRange: { min: 25, max: 35 } },
{ name: ‘Yorkshire Terrier’, bmiRange: { min: 15, max: 25 } }
];
function populateAutocomplete(query = ”) {
autocompleteList.innerHTML = ”;
const filteredBreeds = breeds.filter(b => b.name.toLowerCase().includes(query.toLowerCase()));
filteredBreeds.forEach(breed => {
const item = document.createElement(‘div’);
item.className = ‘autocomplete-item’;
item.textContent = breed.name;
item.setAttribute(‘role’, ‘option’);
item.addEventListener(‘click’, () => {
breedInput.value = breed.name;
breedValue.value = breed.name;
autocompleteList.innerHTML = ”;
});
autocompleteList.appendChild(item);
});
}
breedInput.addEventListener(‘input’, () => {
populateAutocomplete(breedInput.value);
});
breedInput.addEventListener(‘focus’, () => {
populateAutocomplete(breedInput.value);
});
document.addEventListener(‘click’, (e) => {
if (!breedInput.contains(e.target) && !autocompleteList.contains(e.target)) {
autocompleteList.innerHTML = ”;
}
});
function getSelectedUnit(units) {
for (const unit of units) {
if (unit.checked) return unit.value;
}
return units[0].value;
}
function calculate() {
resultDiv.className = ”;
resultDiv.innerHTML = ”;
try {
const breedName = breedValue.value || breedInput.value;
const weight = parseFloat(weightInput.value);
const weightUnit = getSelectedUnit(weightUnits);
const height = parseFloat(heightInput.value);
const heightUnit = getSelectedUnit(heightUnits);
if (!breedName) {
throw new Error(‘Please select a breed.’);
}
if (!weight || weight <= 0) {
throw new Error('Please enter a valid weight.');
}
if (!height || height b.name.toLowerCase() === breedName.toLowerCase()) || breeds.find(b => b.name === ‘Mixed/Other’);
let weightKg = weightUnit === ‘kg’ ? weight : weight / 2.20462;
let heightM = heightUnit === ‘cm’ ? height / 100 : height * 0.0254;
const bmi = weightKg / (heightM * heightM);
if (bmi <= 0 || isNaN(bmi)) {
throw new Error('Invalid BMI calculation. Check inputs.');
}
const { min, max } = breed.bmiRange;
let status = '';
let tips = [];
if (bmi max) {
status = ‘Overweight’;
tips = [
‘Reduce portion sizes by 10–20% and monitor weight.’,
‘Switch to a weight-management dog food formula.’,
‘Increase exercise with daily walks or playtime (30–60 min).’,
‘Avoid high-calorie treats; use carrots or apples instead.’
];
} else {
status = ‘Healthy’;
tips = [
‘Maintain current diet with balanced nutrition.’,
‘Ensure 30–60 min of daily exercise (walks, fetch).’,
‘Schedule annual vet checkups to monitor health.’,
‘Weigh monthly to catch changes early.’
];
}
const chartMax = Math.max(max + 10, bmi + 5);
const chartWidth = 100;
const underweightWidth = (min / chartMax) * chartWidth;
const healthyWidth = ((max – min) / chartMax) * chartWidth;
const markerPosition = (bmi / chartMax) * chartWidth;
const chart = `
Underweight
Healthy
Overweight
Status: ${status}
Breed: ${breed.name}
Healthy BMI Range: ${min}–${max}
Weight: ${weight.toFixed(1)} ${weightUnit} (${(weightKg * 2.20462).toFixed(1)} lb / ${weightKg.toFixed(1)} kg)
Height: ${height.toFixed(1)} ${heightUnit} (${(heightM * 39.3701).toFixed(1)} in / ${(heightM * 100).toFixed(1)} cm)
BMI Chart: ${chart}
Health Tips:
`;
resultDiv.className = ‘success’;
document.getElementById(‘copy-btn’).addEventListener(‘click’, () => {
const text = `
Dog BMI Results
Breed: ${breed.name}
BMI: ${bmi.toFixed(1)}
Status: ${status}
Healthy BMI Range: ${min}–${max}
Weight: ${weight.toFixed(1)} ${weightUnit} (${(weightKg * 2.20462).toFixed(1)} lb / ${weightKg.toFixed(1)} kg)
Height: ${height.toFixed(1)} ${heightUnit} (${(heightM * 39.3701).toFixed(1)} in / ${(heightM * 100).toFixed(1)} cm)
Health Tips:
${tips.map(tip => `- ${tip}`).join(‘\n’)}
`.trim();
navigator.clipboard.writeText(text).then(() => {
alert(‘Results copied to clipboard!’);
});
});
} catch (error) {
resultDiv.innerHTML = `Error: ${error.message}`;
resultDiv.className = ‘error’;
}
}
function reset() {
form.reset();
breedInput.value = ”;
breedValue.value = ”;
autocompleteList.innerHTML = ”;
weightUnits[0].checked = true;
heightUnits[0].checked = true;
resultDiv.className = ”;
resultDiv.innerHTML = ‘Enter your dog’s breed, weight, and height, then click “Calculate”.’;
breedInput.focus();
}
document.getElementById(‘calculate-btn’).addEventListener(‘click’, calculate);
document.getElementById(‘reset-btn’).addEventListener(‘click’, reset);
form.addEventListener(‘keypress’, (e) => {
if (e.key === ‘Enter’ && e.target.tagName !== ‘BUTTON’) {
e.preventDefault();
calculate();
}
});
})();
-
${tips.map(tip => `
- ${tip} `).join(”)}