.calorie-calculator-container {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
max-width: 700px;
margin: 20px auto;
padding: 25px;
border: 1px solid #e0e0e0;
border-radius: 10px;
background-color: #fdfdfd;
box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}
.calorie-calculator-container h2 {
color: #2c3e50;
text-align: center;
margin-bottom: 25px;
font-size: 1.8em;
}
.calorie-calculator-container .input-group {
margin-bottom: 18px;
display: flex;
flex-wrap: wrap;
align-items: center;
gap: 10px;
padding: 10px;
border: 1px solid #eee;
border-radius: 8px;
background-color: #f9f9f9;
}
.calorie-calculator-container .input-group label {
flex: 1 1 100%;
color: #34495e;
font-weight: bold;
margin-bottom: 5px;
font-size: 0.95em;
}
.calorie-calculator-container .input-group input[type="text"],
.calorie-calculator-container .input-group input[type="number"] {
flex: 1 1 calc(33% – 20px); /* Adjust width for 3 inputs per row */
padding: 12px;
border: 1px solid #ccc;
border-radius: 6px;
font-size: 1em;
box-sizing: border-box;
min-width: 120px; /* Ensure inputs don't get too small */
}
.calorie-calculator-container .input-group input[type="text"] {
flex: 1 1 calc(100% – 20px); /* Food name takes full width */
}
.calorie-calculator-container .input-group input[type="number"] {
flex: 1 1 calc(50% – 15px); /* Calories and Quantity share width */
}
.calorie-calculator-container button {
display: block;
width: 100%;
padding: 15px;
background-color: #28a745;
color: white;
border: none;
border-radius: 6px;
font-size: 1.1em;
font-weight: bold;
cursor: pointer;
transition: background-color 0.3s ease, transform 0.2s ease;
margin-top: 25px;
}
.calorie-calculator-container button:hover {
background-color: #218838;
transform: translateY(-2px);
}
.calorie-calculator-container .result {
margin-top: 30px;
padding: 20px;
border: 2px solid #28a745;
border-radius: 8px;
background-color: #e6ffed;
text-align: center;
font-size: 1.4em;
color: #1e7e34;
font-weight: bold;
}
.calorie-calculator-container .result span {
color: #0056b3;
}
@media (max-width: 600px) {
.calorie-calculator-container .input-group input[type="text"],
.calorie-calculator-container .input-group input[type="number"] {
flex: 1 1 100%; /* Stack inputs on smaller screens */
}
}
Food Calorie Calculator
Total Estimated Calories: 0 kcal
function calculateTotalCalories() {
var totalCalories = 0;
// Function to calculate calories for a single item
function calculateItemCalories(caloriesPer100gId, quantityGramsId) {
var caloriesPer100g = parseFloat(document.getElementById(caloriesPer100gId).value);
var quantityGrams = parseFloat(document.getElementById(quantityGramsId).value);
if (isNaN(caloriesPer100g) || caloriesPer100g < 0) {
caloriesPer100g = 0;
}
if (isNaN(quantityGrams) || quantityGrams < 0) {
quantityGrams = 0;
}
return (caloriesPer100g / 100) * quantityGrams;
}
// Calculate for Food Item 1
totalCalories += calculateItemCalories('caloriesPer100g_1', 'quantityGrams1');
// Calculate for Food Item 2
totalCalories += calculateItemCalories('caloriesPer100g_2', 'quantityGrams2');
// Calculate for Food Item 3
totalCalories += calculateItemCalories('caloriesPer100g_3', 'quantityGrams3');
document.getElementById('totalCaloriesResult').innerText = totalCalories.toFixed(0) + ' kcal';
}
// Initial calculation on page load for example values
window.onload = calculateTotalCalories;
Understanding Your Calorie Intake with Our Food Calorie Calculator
Calories are units of energy that our bodies derive from food and drink. They are essential for all bodily functions, from breathing and thinking to physical activity. Understanding and managing your calorie intake is a fundamental aspect of maintaining a healthy weight, whether your goal is to lose, gain, or maintain.
Why Track Calories?
- Weight Management: To lose weight, you generally need to consume fewer calories than you burn (a calorie deficit). To gain weight, you need to consume more (a calorie surplus). For maintenance, intake should roughly equal expenditure.
- Nutritional Awareness: Tracking calories often leads to a better understanding of the nutritional content of the foods you eat, helping you make healthier choices.
- Goal Setting: It provides concrete data to help you set and achieve specific dietary goals.
How to Use This Calculator
Our Food Calorie Calculator simplifies the process of estimating the calorie content of your meals. Here's how:
- Identify Your Food Items: List the individual components of your meal or snack.
- Find Calories per 100g: This is a crucial piece of information. You can typically find this on food nutrition labels (often listed as "Energy" in kcal), or by searching reliable online food databases (e.g., USDA FoodData Central, MyFitnessPal, or specific brand websites).
- Measure Quantity Consumed: Accurately measure the amount of each food item you've eaten in grams. A kitchen scale is highly recommended for precision.
- Input the Data: Enter the food name (optional, for your reference), the calories per 100g, and the quantity in grams for up to three different food items into the respective fields.
- Calculate: Click the "Calculate Total Calories" button to get an estimated total calorie count for your entered foods.
Example Calculation:
Let's say you eat:
- 182g of Apple (52 kcal per 100g)
- 150g of Cooked Chicken Breast (165 kcal per 100g)
- 200g of Cooked White Rice (130 kcal per 100g)
The calculator performs the following:
- Apple: (52 kcal / 100g) * 182g = 94.64 kcal
- Chicken Breast: (165 kcal / 100g) * 150g = 247.5 kcal
- White Rice: (130 kcal / 100g) * 200g = 260 kcal
- Total: 94.64 + 247.5 + 260 = 602.14 kcal (approximately 602 kcal)
Important Considerations for Accuracy:
- Food Preparation: Cooking methods (e.g., frying vs. baking), added oils, sauces, and ingredients can significantly alter calorie counts. The "calories per 100g" should ideally reflect the food in its prepared state.
- Portion Sizes: Accurate measurement is key. Eyeballing portions can lead to significant errors.
- Individual Variation: Calorie needs vary greatly based on age, sex, weight, height, activity level, and metabolism. This calculator provides food-specific calories, not your personal daily requirement.
- Nutrient Density: While calories are important, focus on nutrient-dense foods that provide vitamins, minerals, and fiber, not just energy.
This calculator is a helpful tool for estimating the energy content of your meals. For personalized dietary advice or specific health goals, always consult with a qualified healthcare professional or registered dietitian.