Calculate the total calories in any meal by adding ingredients with their serving sizes. Get per-serving breakdown with protein, carbs, and fat totals.
Knowing the exact calorie content of a home-cooked meal is one of the biggest challenges of accurate food tracking. Restaurant meals have nutrition labels; your grandmother's recipe does not. This calculator solves that problem by letting you add each ingredient with its weight or serving size, then summing the total calories and macronutrients for the entire recipe.
You can then divide by the number of servings to get per-serving nutrition data that is just as accurate as any packaged food label. This is invaluable for meal prep, batch cooking, and recipe development — whether you're counting calories for weight loss, tracking macros for performance, or simply want to understand what's in the food you eat.
The calculator includes a built-in database of common ingredients with their calorie and macro values per 100g, making it easy to quickly build any recipe without looking up every item separately. Whether you are a beginner or experienced professional, this free online tool provides instant, reliable results without manual computation.
Estimation and guessing are the biggest sources of error in calorie tracking. Research shows people underestimate calorie intake by 30–50% when eyeballing portions. This calculator eliminates guesswork by computing exact nutrition from weighed ingredients. For meal preppers and recipe developers, it turns any recipe into a nutrition-labeled product. Having a precise figure at your fingertips empowers better planning and more confident decisions.
Ingredient Calories = (Calories per 100g × Amount in grams) / 100 Total Meal Calories = ∑ (each ingredient's calories) Total Protein = ∑ (each ingredient's protein) Total Carbs = ∑ (each ingredient's carbs) Total Fat = ∑ (each ingredient's fat) Per Serving = Total / Number of Servings
Result: 426 kcal per serving
Chicken: 500g × 165/100 = 825 kcal. Rice: 400g × 123/100 = 492 kcal. Broccoli: 300g × 34/100 = 102 kcal. Olive oil: 30g × 884/100 = 265 kcal. Total: 1,684 kcal. Divided by 4 servings: 421 kcal per serving. This is a solid meal prep recipe yielding about 420 calories, ~45g protein, ~40g carbs, and ~12g fat per serving.
Restaurant meals average 200–300 calories more than equivalent home-cooked meals, primarily due to added fats and larger portions. By cooking at home and calculating your meal calories, you gain complete control over your nutrition. Studies show that people who cook at home consume fewer calories, less sugar, and less fat than those who eat out frequently.
Meal prepping with calculated nutrition is the most effective strategy for consistent calorie control. By cooking a batch recipe and dividing it into equal portions, you eliminate daily decision-making and estimation errors. Each container has a known calorie and macro count, making it as easy to track as packaged food.
The most common mistakes: (1) Not counting cooking oils and fats — a tablespoon of olive oil adds 120 kcal. (2) Not weighing ingredients — "a cup of rice" can vary by 30–50% depending on packing. (3) Using cooked weights with raw calorie data (or vice versa). (4) Forgetting sauces, dressings, and condiments. (5) Rounding portion sizes down. A digital food scale costing $10–15 eliminates most of these errors and is the single best investment for accurate tracking.
Over time, the most efficient approach is to build a personal database of your go-to recipes. Calculate each recipe once, save the per-serving data, and reuse it daily. Most people rotate through 15–20 meals regularly — calculating those once gives you a permanent nutrition library for your most common foods.
The most reliable source is the USDA FoodData Central database (fdc.nal.usda.gov). You can also use food packaging labels — just convert to per-100g if listed per serving. Our built-in quick-add database covers the most common cooking ingredients. For branded products, check the manufacturer's nutrition label.
Always weigh raw/uncooked for the most accurate results. Cooking changes weight (meat loses water, rice/pasta absorbs water) but not calorie content. If you must weigh cooked food, use calorie values specifically for the cooked version. A raw chicken breast at 165 kcal/100g will have about 190–200 kcal/100g when cooked due to water loss.
Weigh the total finished product in grams. Enter the total recipe nutrition, then weigh individual portions. For example, if your soup totals 2,000g and 1,200 calories, each 500g bowl is (500/2000) × 1,200 = 300 calories. This weight-based method is more accurate than estimating number of servings.
Yes — cooking oils are calorie-dense (around 884 kcal/100g or ~120 kcal per tablespoon). Even small amounts add significant calories. Measure oil with a tablespoon or weigh it. If you're air-frying or grilling instead of pan-frying, the calorie reduction from skipping oil can be substantial.
Very accurate, especially when weighing with a digital scale. The USDA estimates a ±5–10% margin of error for food composition data. The biggest sources of error are guessing portions without weighing and forgetting to count cooking fats, sauces, or condiments. Weighing everything reduces error to near the database's inherent margin.
Absolutely — this is one of the best use cases. Enter your full recipe, set servings to however many meal prep containers you're filling, and you get exact per-container nutrition. This lets you plan meals that fit your daily macro and calorie targets precisely, eliminating guesswork throughout the week.
Cooking methods generally don't change the calorie content of the food itself — they only change water content (affecting weight). The exception is adding fat: deep frying adds calories from absorbed oil. Baking, grilling, steaming, and boiling don't add calories. Always count added oils, butter, or sauces as separate ingredients.
Most dry spices are negligible: even a full tablespoon of most spices is under 10 calories. Salt has zero calories. You can safely ignore dry spices in your calculations. However, watch out for spice blends with sugar (BBQ rubs), premade sauces (teriyaki, BBQ, ranch), and oil-based seasonings — these can add meaningful calories.