Dog Heart Rate Calculator
.dhr-calculator-wrapper {
max-width: 700px;
margin: 0 auto;
background: #fff;
padding: 30px;
border-radius: 12px;
box-shadow: 0 4px 15px rgba(0,0,0,0.1);
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
color: #333;
}
.dhr-header {
text-align: center;
margin-bottom: 25px;
border-bottom: 2px solid #f0f0f0;
padding-bottom: 15px;
}
.dhr-header h2 {
margin: 0;
color: #2c3e50;
font-size: 24px;
}
.dhr-form-group {
margin-bottom: 20px;
}
.dhr-label {
display: block;
margin-bottom: 8px;
font-weight: 600;
color: #444;
}
.dhr-input, .dhr-select {
width: 100%;
padding: 12px;
border: 1px solid #ddd;
border-radius: 6px;
font-size: 16px;
box-sizing: border-box;
transition: border-color 0.3s;
}
.dhr-input:focus, .dhr-select:focus {
border-color: #3498db;
outline: none;
}
.dhr-help-text {
font-size: 12px;
color: #777;
margin-top: 5px;
}
.dhr-btn {
width: 100%;
background-color: #e74c3c;
color: white;
padding: 15px;
border: none;
border-radius: 6px;
font-size: 18px;
font-weight: bold;
cursor: pointer;
transition: background-color 0.3s;
margin-top: 10px;
}
.dhr-btn:hover {
background-color: #c0392b;
}
.dhr-result-box {
margin-top: 30px;
padding: 20px;
background-color: #f8f9fa;
border-radius: 8px;
border-left: 5px solid #e74c3c;
display: none;
}
.dhr-result-value {
font-size: 32px;
font-weight: 800;
color: #2c3e50;
text-align: center;
margin-bottom: 10px;
}
.dhr-result-sub {
text-align: center;
font-size: 18px;
color: #555;
margin-bottom: 15px;
}
.dhr-interpretation {
background: #fff;
padding: 15px;
border-radius: 6px;
border: 1px solid #eee;
}
.dhr-status-normal { color: #27ae60; font-weight: bold; }
.dhr-status-warning { color: #e67e22; font-weight: bold; }
.dhr-status-danger { color: #c0392b; font-weight: bold; }
.dhr-article {
max-width: 700px;
margin: 40px auto;
font-family: inherit;
line-height: 1.6;
color: #333;
}
.dhr-article h2 {
color: #2c3e50;
margin-top: 30px;
border-bottom: 1px solid #eee;
padding-bottom: 10px;
}
.dhr-article ul {
background: #f9f9f9;
padding: 20px 40px;
border-radius: 8px;
}
.dhr-article li {
margin-bottom: 10px;
}
How to Measure Your Dog's Heart Rate
Monitoring your dog's heart rate is a vital skill for pet owners, especially when assessing fitness levels or checking for signs of distress. The most accurate way to measure the pulse is via the femoral artery.
Step-by-Step Instructions:
- Find a Quiet Spot: Ensure your dog is calm, relaxed, and not panting heavily. Panting can make it difficult to distinguish heartbeats from respiratory movement.
- Locate the Pulse: Place your fingers on the inside of your dog's hind leg, near where the leg meets the body. This is the femoral artery. Alternatively, you can place your hand directly over the heart on the left side of the chest, just behind the elbow.
- Count the Beats: Using a watch or stopwatch, count the number of beats you feel for a set time interval (usually 15 seconds is easiest).
- Calculate: Input your count into the calculator above to get the Beats Per Minute (BPM).
Normal Resting Heart Rate Ranges
A dog's heart rate varies significantly based on their size and age. Smaller dogs generally have faster metabolisms and faster heart rates than larger dogs.
- Puppies: 120 – 160 BPM
- Small / Toy Breeds: 100 – 140 BPM
- Medium / Large Breeds: 60 – 100 BPM
- Giant Breeds: 60 – 80 BPM
Understanding the Results
Normal: The heart rate falls within the expected range for the dog's size. Keep in mind that active dogs or dogs at the vet (due to stress) may have higher rates.
Tachycardia (High): A resting heart rate consistently above the normal range can indicate stress, pain, fever, dehydration, or heart disease.
Bradycardia (Low): A heart rate below the normal range. While athletic dogs may naturally have lower rates, significantly low rates can indicate hypothermia, poisoning, or underlying heart issues.
Disclaimer: This calculator is for educational purposes only. If you suspect your dog is ill or if their heart rate is consistently abnormal, please consult a veterinarian immediately.
function calculateDogHeartRate() {
// 1. Get Input Values
var beatsInput = document.getElementById('dhr_beats').value;
var secondsInput = document.getElementById('dhr_seconds').value;
var dogType = document.getElementById('dhr_size').value;
var resultBox = document.getElementById('dhr_result');
var bpmDisplay = document.getElementById('dhr_bpm_display');
var interpDisplay = document.getElementById('dhr_interpretation');
// 2. Validation
if (beatsInput === "" || isNaN(beatsInput) || beatsInput < 0) {
alert("Please enter a valid number of beats.");
return;
}
var beats = parseFloat(beatsInput);
var seconds = parseFloat(secondsInput);
// 3. Calculation logic
// Formula: Beats * (60 / Duration)
var multiplier = 60 / seconds;
var bpm = Math.round(beats * multiplier);
// 4. Reference Ranges Logic
var minNormal = 0;
var maxNormal = 0;
// Set ranges based on dog type
if (dogType === "puppy") {
minNormal = 120;
maxNormal = 160;
} else if (dogType === "small") {
minNormal = 100;
maxNormal = 140;
} else if (dogType === "medium_large") {
minNormal = 60;
maxNormal = 100;
} else if (dogType === "giant") {
minNormal = 60;
maxNormal = 80;
}
// 5. Interpretation Logic
var status = "";
var statusClass = "";
var statusMessage = "";
if (bpm maxNormal) {
status = "High (Tachycardia)";
statusClass = "dhr-status-danger";
statusMessage = "This heart rate is above the typical resting range. If the dog is stressed or exercised, this may be temporary.";
} else {
status = "Normal";
statusClass = "dhr-status-normal";
statusMessage = "This falls within the healthy resting range for a dog of this size.";
}
// 6. Display Results
bpmDisplay.innerHTML = bpm + " BPM";
interpDisplay.innerHTML = "
Status: " + status + "" +
"Target Range: " + minNormal + " – " + maxNormal + " BPM" +
statusMessage;
resultBox.style.display = "block";
// Scroll to result on mobile
resultBox.scrollIntoView({ behavior: 'smooth', block: 'nearest' });
}