Caloric Rate Calculator
This calculator helps you estimate your daily caloric needs based on your Basal Metabolic Rate (BMR) and activity level. Understanding your caloric rate is crucial for weight management, whether you're aiming to lose, maintain, or gain weight.
var calculateCaloricRate = function() {
var weight = parseFloat(document.getElementById("weight").value);
var height = parseFloat(document.getElementById("height").value);
var age = parseInt(document.getElementById("age").value);
var gender = document.getElementById("gender").value;
var activityLevel = parseFloat(document.getElementById("activityLevel").value);
var bmr = 0;
if (isNaN(weight) || isNaN(height) || isNaN(age) || weight <= 0 || height <= 0 || age <= 0) {
document.getElementById("result").innerHTML = "Please enter valid numbers for all fields.";
return;
}
if (gender === "male") {
// Mifflin-St Jeor Equation for men
bmr = (10 * weight) + (6.25 * height) – (5 * age) + 5;
} else {
// Mifflin-St Jeor Equation for women
bmr = (10 * weight) + (6.25 * height) – (5 * age) – 161;
}
var caloricRate = bmr * activityLevel;
document.getElementById("result").innerHTML =
"
Your Estimated Daily Caloric Needs:
" +
"
Basal Metabolic Rate (BMR): " + bmr.toFixed(2) + " calories/day" +
"
Total Daily Energy Expenditure (TDEE): " + caloricRate.toFixed(2) + " calories/day" +
"This is an estimate. Individual needs may vary based on genetics, body composition, and specific lifestyle factors.";
};
#caloric-rate-calculator {
font-family: sans-serif;
max-width: 600px;
margin: 20px auto;
padding: 20px;
border: 1px solid #ccc;
border-radius: 8px;
background-color: #f9f9f9;
}
#caloric-rate-calculator h2 {
text-align: center;
margin-bottom: 20px;
color: #333;
}
.calculator-inputs {
display: grid;
grid-template-columns: repeat(2, 1fr);
gap: 15px;
margin-bottom: 20px;
}
.input-group {
display: flex;
flex-direction: column;
}
.input-group label {
margin-bottom: 5px;
font-weight: bold;
color: #555;
}
.input-group input[type="number"],
.input-group select {
padding: 10px;
border: 1px solid #ccc;
border-radius: 4px;
font-size: 1em;
}
button {
grid-column: 1 / -1;
padding: 12px 20px;
background-color: #007bff;
color: white;
border: none;
border-radius: 4px;
cursor: pointer;
font-size: 1.1em;
transition: background-color 0.3s ease;
}
button:hover {
background-color: #0056b3;
}
.calculator-result {
margin-top: 20px;
padding: 15px;
border: 1px dashed #007bff;
border-radius: 4px;
background-color: #e7f3ff;
text-align: center;
}
.calculator-result h3 {
margin-top: 0;
color: #0056b3;
}
.calculator-result p {
margin-bottom: 10px;
color: #333;
}