Recipe Nutrition Calculator
body {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
background-color: #f8f9fa;
color: #333;
line-height: 1.6;
margin: 0;
padding: 20px;
}
.recipe-calc-container {
max-width: 800px;
margin: 40px auto;
background-color: #ffffff;
padding: 30px;
border-radius: 8px;
box-shadow: 0 4px 15px rgba(0, 74, 153, 0.1);
border: 1px solid #e0e0e0;
}
h1, h2 {
color: #004a99;
text-align: center;
margin-bottom: 20px;
}
.input-group {
margin-bottom: 20px;
display: flex;
flex-wrap: wrap;
align-items: center;
gap: 15px;
}
.input-group label {
flex: 0 0 180px;
font-weight: 600;
color: #555;
}
.input-group input[type="number"],
.input-group input[type="text"] {
flex: 1 1 200px;
padding: 10px 12px;
border: 1px solid #ccc;
border-radius: 4px;
font-size: 1rem;
box-sizing: border-box;
}
.input-group input[type="number"]:focus,
.input-group input[type="text"]:focus {
border-color: #004a99;
outline: none;
box-shadow: 0 0 0 3px rgba(0, 74, 153, 0.2);
}
button {
display: block;
width: 100%;
padding: 12px 20px;
background-color: #004a99;
color: white;
border: none;
border-radius: 4px;
font-size: 1.1rem;
font-weight: 600;
cursor: pointer;
transition: background-color 0.3s ease;
margin-top: 20px;
}
button:hover {
background-color: #003a7a;
}
#nutritionResult {
margin-top: 30px;
padding: 25px;
background-color: #e7f3ff;
border-left: 5px solid #004a99;
border-radius: 5px;
}
#nutritionResult h3 {
color: #004a99;
margin-top: 0;
text-align: left;
}
.nutrition-item {
display: flex;
justify-content: space-between;
padding: 8px 0;
border-bottom: 1px dashed #cce0ff;
}
.nutrition-item:last-child {
border-bottom: none;
}
.nutrition-item span:first-child {
font-weight: 600;
color: #333;
}
.nutrition-item span:last-child {
color: #004a99;
font-weight: bold;
}
.error-message {
color: #dc3545;
font-weight: 600;
margin-top: 15px;
text-align: center;
}
.article-section {
margin-top: 40px;
padding-top: 30px;
border-top: 1px solid #eee;
}
.article-section h2 {
text-align: left;
margin-bottom: 15px;
}
.article-section p, .article-section ul {
margin-bottom: 15px;
}
.article-section ul {
padding-left: 25px;
}
@media (max-width: 600px) {
.input-group {
flex-direction: column;
align-items: flex-start;
}
.input-group label {
flex-basis: auto;
margin-bottom: 5px;
}
.input-group input[type="number"],
.input-group input[type="text"] {
width: 100%;
flex-basis: auto;
}
.recipe-calc-container {
padding: 20px;
}
}
Recipe Nutrition Calculator
Nutrition per Serving for
Calories:
Protein:
Carbohydrates:
Fat:
Fiber:
Sugar:
Sodium:
Saturated Fat:
Understanding Your Recipe Nutrition Calculator
This calculator helps you determine the nutritional content of your homemade recipes. Whether you're a home cook aiming for healthier meals, a blogger sharing your culinary creations, or a small food business, understanding the breakdown of calories, macronutrients, and other key components is vital.
How the Calculator Works
The core of this calculator relies on a simple, proportional calculation based on the nutritional data provided per 100 grams of the recipe's average nutritional profile. Here's the breakdown:
- Inputting Base Nutrition: You first provide the nutritional values (calories, protein, carbs, fat, fiber, sugar, sodium, saturated fat) for every 100 grams of your finished recipe. This data can be found through various means, such as using online nutrition databases for individual ingredients and calculating a weighted average, or by using specialized nutrition analysis software.
- Recipe Weight: Next, you input the total weight of the entire recipe after it has been prepared and cooked. This is crucial for accurately scaling the nutrition.
- Serving Size: Finally, you specify the intended serving size in grams.
The calculator then performs the following calculations:
- Calculate Nutritional Values per Gram: Each nutritional value (e.g., calories) provided per 100g is divided by 100 to get the value per gram.
Example: If calories per 100g is 250, then calories per gram = 250 / 100 = 2.5 kcal/g.
- Calculate Total Nutrition for the Recipe: The nutritional value per gram is multiplied by the Total Recipe Weight (grams) to get the total nutritional content for the entire batch.
Example: If calories per gram is 2.5 kcal/g and the total recipe weight is 1200g, then total calories = 2.5 * 1200 = 3000 kcal.
- Calculate Nutrition per Serving: The total nutritional content of the recipe is divided by the Serving Size (grams) to determine the nutritional profile for a single serving.
Example: If total calories for the recipe is 3000 kcal and the serving size is 150g, then calories per serving = 3000 / 150 = 20 kcal/g.
The formula for any nutrient (N) per serving is:
N per Serving = (N per 100g / 100) * Total Recipe Weight (g) / Serving Size (g)
Use Cases
- Healthy Eating: Track intake for specific dietary goals (e.g., low-carb, high-protein).
- Allergy Management: Identify and manage allergens like sodium or saturated fats.
- Recipe Development: Understand how ingredient changes affect the overall nutrition.
- Food Blogging & Business: Provide accurate nutritional information to your audience or customers.
- Portion Control: Ensure consistency and accuracy in serving sizes.
By accurately inputting your recipe's details, this calculator empowers you with valuable nutritional insights, helping you make informed decisions about your food.
function calculateNutrition() {
var recipeName = document.getElementById("recipeName").value;
var servingSize = parseFloat(document.getElementById("servingSize").value);
var totalRecipeWeight = parseFloat(document.getElementById("totalRecipeWeight").value);
var caloriesPer100g = parseFloat(document.getElementById("caloriesPer100g").value);
var proteinPer100g = parseFloat(document.getElementById("proteinPer100g").value);
var carbsPer100g = parseFloat(document.getElementById("carbsPer100g").value);
var fatPer100g = parseFloat(document.getElementById("fatPer100g").value);
var fiberPer100g = parseFloat(document.getElementById("fiberPer100g").value);
var sugarPer100g = parseFloat(document.getElementById("sugarPer100g").value);
var sodiumPer100g = parseFloat(document.getElementById("sodiumPer100g").value);
var saturatedFatPer100g = parseFloat(document.getElementById("saturatedFatPer100g").value);
var errorMessageElement = document.getElementById("errorMessage");
errorMessageElement.textContent = "";
var nutritionResultElement = document.getElementById("nutritionResult");
nutritionResultElement.style.display = "none";
// — Input Validation —
if (isNaN(servingSize) || servingSize <= 0) {
errorMessageElement.textContent = "Please enter a valid serving size (greater than 0 grams).";
return;
}
if (isNaN(totalRecipeWeight) || totalRecipeWeight <= 0) {
errorMessageElement.textContent = "Please enter a valid total recipe weight (greater than 0 grams).";
return;
}
if (isNaN(caloriesPer100g) || caloriesPer100g < 0) {
errorMessageElement.textContent = "Please enter a valid number for Calories (0 or greater).";
return;
}
if (isNaN(proteinPer100g) || proteinPer100g < 0) {
errorMessageElement.textContent = "Please enter a valid number for Protein (0 or greater).";
return;
}
if (isNaN(carbsPer100g) || carbsPer100g < 0) {
errorMessageElement.textContent = "Please enter a valid number for Carbohydrates (0 or greater).";
return;
}
if (isNaN(fatPer100g) || fatPer100g < 0) {
errorMessageElement.textContent = "Please enter a valid number for Fat (0 or greater).";
return;
}
if (isNaN(fiberPer100g) || fiberPer100g < 0) {
errorMessageElement.textContent = "Please enter a valid number for Fiber (0 or greater).";
return;
}
if (isNaN(sugarPer100g) || sugarPer100g < 0) {
errorMessageElement.textContent = "Please enter a valid number for Sugar (0 or greater).";
return;
}
if (isNaN(sodiumPer100g) || sodiumPer100g < 0) {
errorMessageElement.textContent = "Please enter a valid number for Sodium (0 or greater).";
return;
}
if (isNaN(saturatedFatPer100g) || saturatedFatPer100g < 0) {
errorMessageElement.textContent = "Please enter a valid number for Saturated Fat (0 or greater).";
return;
}
// — Calculations —
var servingWeightRatio = servingSize / totalRecipeWeight;
var resultCalories = (caloriesPer100g / 100) * totalRecipeWeight * servingWeightRatio;
var resultProtein = (proteinPer100g / 100) * totalRecipeWeight * servingWeightRatio;
var resultCarbs = (carbsPer100g / 100) * totalRecipeWeight * servingWeightRatio;
var resultFat = (fatPer100g / 100) * totalRecipeWeight * servingWeightRatio;
var resultFiber = (fiberPer100g / 100) * totalRecipeWeight * servingWeightRatio;
var resultSugar = (sugarPer100g / 100) * totalRecipeWeight * servingWeightRatio;
var resultSodium = (sodiumPer100g / 100) * totalRecipeWeight * servingWeightRatio;
var resultSaturatedFat = (saturatedFatPer100g / 100) * totalRecipeWeight * servingWeightRatio;
// — Display Results —
document.getElementById("resultRecipeName").textContent = recipeName || "Your Recipe";
document.getElementById("resultCalories").textContent = resultCalories.toFixed(1) + " kcal";
document.getElementById("resultProtein").textContent = resultProtein.toFixed(1) + " g";
document.getElementById("resultCarbs").textContent = resultCarbs.toFixed(1) + " g";
document.getElementById("resultFat").textContent = resultFat.toFixed(1) + " g";
document.getElementById("resultFiber").textContent = resultFiber.toFixed(1) + " g";
document.getElementById("resultSugar").textContent = resultSugar.toFixed(1) + " g";
document.getElementById("resultSodium").textContent = resultSodium.toFixed(1) + " mg";
document.getElementById("resultSaturatedFat").textContent = resultSaturatedFat.toFixed(1) + " g";
nutritionResultElement.style.display = "block";
}