Nutrition Facts Recipe Calculator
Ever wondered about the exact nutritional breakdown of your homemade dishes? Our Nutrition Facts Recipe Calculator helps you easily determine the total calories, protein, carbohydrates, and fats for your entire recipe, as well as per serving. Whether you're tracking macros, managing dietary restrictions, or simply curious, this tool provides a clear overview of your culinary creations.
How to Use the Calculator:
- Enter Number of Servings: Specify how many portions your recipe yields.
- Add Ingredients: For each ingredient, enter its name (optional, for your reference), the total quantity in grams you're using, and its nutritional values per 100 grams.
- Find Nutritional Data: You can typically find "per 100g" nutritional information on food packaging, online food databases (like USDA FoodData Central, MyFitnessPal, or specific brand websites), or general nutrition charts.
- Calculate: Click the "Calculate Nutrition" button to see the total and per-serving nutritional facts.
Why Calculate Your Recipe's Nutrition?
- Dietary Management: Essential for those tracking calories, macros (protein, carbs, fats), or specific nutrients for weight loss, muscle gain, or health conditions like diabetes.
- Meal Prepping: Helps you plan and portion meals accurately, ensuring consistent nutrition throughout the week.
- Allergy & Intolerance Awareness: While this calculator focuses on macros, understanding ingredient quantities can help in managing ingredients for allergies.
- Informed Cooking: Gain a deeper understanding of how different ingredients contribute to the overall nutritional profile of your dishes.
- Food Labeling (Home Use): Create your own "nutrition facts" for your favorite homemade recipes.
Important Considerations:
- Ingredient Variability: Nutritional values can vary slightly based on brand, ripeness, and specific variety of an ingredient.
- Cooking Methods: Frying, boiling, or baking can affect nutrient content, especially fat absorption or water loss. This calculator provides raw ingredient estimates.
- Water Content: The weight of ingredients can change significantly during cooking (e.g., rice absorbs water, vegetables lose water). It's best to use the raw weight of ingredients for calculation.
- Accuracy: This tool provides estimates based on the data you input. For precise dietary planning, consult with a registered dietitian or nutritionist.
function calculateNutrition() {
var numServingsInput = document.getElementById("numServings");
var numServings = parseFloat(numServingsInput.value);
if (isNaN(numServings) || numServings <= 0) {
alert("Please enter a valid number of servings (greater than 0).");
numServingsInput.style.borderColor = "red";
return;
} else {
numServingsInput.style.borderColor = "#ccc";
}
var totalRecipeCalories = 0;
var totalRecipeProtein = 0;
var totalRecipeCarbs = 0;
var totalRecipeFats = 0;
var numIngredients = 5; // Fixed number of ingredient rows
for (var i = 1; i <= numIngredients; i++) {
var quantityInput = document.getElementById("quantity" + i);
var caloriesPer100gInput = document.getElementById("caloriesPer100g" + i);
var proteinPer100gInput = document.getElementById("proteinPer100g" + i);
var carbsPer100gInput = document.getElementById("carbsPer100g" + i);
var fatsPer100gInput = document.getElementById("fatsPer100g" + i);
var quantity = parseFloat(quantityInput.value);
var caloriesPer100g = parseFloat(caloriesPer100gInput.value);
var proteinPer100g = parseFloat(proteinPer100gInput.value);
var carbsPer100g = parseFloat(carbsPer100gInput.value);
var fatsPer100g = parseFloat(fatsPer100gInput.value);
// Validate inputs for current ingredient, treat invalid/empty as 0
quantity = isNaN(quantity) ? 0 : quantity;
caloriesPer100g = isNaN(caloriesPer100g) ? 0 : caloriesPer100g;
proteinPer100g = isNaN(proteinPer100g) ? 0 : proteinPer100g;
carbsPer100g = isNaN(carbsPer100g) ? 0 : carbsPer100g;
fatsPer100g = isNaN(fatsPer100g) ? 0 : fatsPer100g;
// Calculate contribution of this ingredient
var factor = quantity / 100;
totalRecipeCalories += factor * caloriesPer100g;
totalRecipeProtein += factor * proteinPer100g;
totalRecipeCarbs += factor * carbsPer100g;
totalRecipeFats += factor * fatsPer100g;
}
// Calculate per serving values
var perServingCalories = totalRecipeCalories / numServings;
var perServingProtein = totalRecipeProtein / numServings;
var perServingCarbs = totalRecipeCarbs / numServings;
var perServingFats = totalRecipeFats / numServings;
// Display results
document.getElementById("totalRecipeCalories").innerHTML = "
Total Recipe Calories: " + totalRecipeCalories.toFixed(2) + " kcal";
document.getElementById("totalRecipeProtein").innerHTML = "
Total Recipe Protein: " + totalRecipeProtein.toFixed(2) + " g";
document.getElementById("totalRecipeCarbs").innerHTML = "
Total Recipe Carbohydrates: " + totalRecipeCarbs.toFixed(2) + " g";
document.getElementById("totalRecipeFats").innerHTML = "
Total Recipe Fats: " + totalRecipeFats.toFixed(2) + " g";
document.getElementById("perServingCalories").innerHTML = "
Calories per Serving: " + perServingCalories.toFixed(2) + " kcal";
document.getElementById("perServingProtein").innerHTML = "
Protein per Serving: " + perServingProtein.toFixed(2) + " g";
document.getElementById("perServingCarbs").innerHTML = "
Carbohydrates per Serving: " + perServingCarbs.toFixed(2) + " g";
document.getElementById("perServingFats").innerHTML = "
Fats per Serving: " + perServingFats.toFixed(2) + " g";
document.getElementById("nutritionResult").style.display = "block";
}