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Recipe Nutrition Calculator

Calculate the calories and macros per serving for any recipe in 2026. Enter total recipe protein, carbohydrate, fat, and fiber grams plus the number of servings to get per-serving nutrition facts that match Nutrition Facts label format. Built for home cooks, meal preppers, and anyone tracking macros from scratch-cooked meals.

Enter Values

Total Recipe Protein (g)

Total Recipe Carbs (g)

Total Recipe Fat (g)

Total Recipe Fiber (g, optional)

Number of Servings

Result

Enter values above and click Calculate to see your result.

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Our AI assistant provides general estimates and advice only. Please consult a qualified healthcare professional before making any health-related decisions.

Formula

Core Formula

\text{Per Serving} = \frac{(P \times 4) + (C \times 4) + (F \times 9) + (\text{Fib} \times 2)}{\text{Servings}}

How it works: Sum the calories from each macronutrient using Atwater factors, then divide by the number of servings the recipe yields. Each per-serving macro is also divided by the serving count.

Worked Example

A chili recipe with 200 g protein, 250 g carbs, 30 g fiber, 80 g fat, makes 8 servings:

1Step 1: Total protein cal = 200 x 4 = 800 kcal

2Step 2: Total carb cal = 250 x 4 = 1,000 kcal

3Step 3: Total fat cal = 80 x 9 = 720 kcal

4Step 4: Total fiber cal = 30 x 2 = 60 kcal

5Step 5: Total recipe = 2,580 kcal

6Step 6: Per serving = 2,580 / 8 = 322 kcal, 25 g protein, 31 g carbs, 10 g fat, 3.75 g fiber

Recipe Nutrition Calculator: Calories and Macros Per Serving

Pre-packaged foods come with a Nutrition Facts label, but home-cooked recipes do not. Calculating per-serving nutrition by hand requires summing every ingredient and dividing by the number of portions you cut. This calculator does that math instantly so you can plug recipe results into any macro tracker.

Workflow: total each macro across all ingredients, divide by servings, get per-portion calories and grams
Atwater factors: protein 4 kcal/g, carbs 4 kcal/g, fat 9 kcal/g, fiber 2 kcal/g (partial absorption)
Typical home recipe yields: casserole 6 to 8 servings, soup pot 4 to 6, family chili 6 to 8, lasagna 8 to 12
For meal prep, weigh the finished cooked dish, then divide grams equally across containers for accurate portions
Estimates are usually within 5 to 10 percent of professional lab values, accurate enough for daily macro tracking

For ongoing meal planning, save your calculated per-serving values in a notes app or food tracker. Pair this with the Macro Calculator to ensure each meal fits your daily protein and calorie targets.

You can also calculate changes using our Meal Calorie Calculator, Macro Calculator, Carbs to Calories Calculator, Calorie Calculator or Protein Needs Calculator.

Frequently Asked Questions

How do I calculate calories per serving for a recipe?

Sum the calories from every ingredient (use 4 kcal/g for protein and carbs, 9 kcal/g for fat), then divide the total by the number of servings the recipe yields. A 2,400 calorie recipe split into 8 servings is 300 calories per serving.

How accurate are home recipe nutrition calculations?

Within about 5 to 10 percent of professional lab analysis. The biggest sources of error are rounded ingredient weights and natural variation in produce sizes. For daily macro tracking, this is plenty accurate.

How do I weigh ingredients for the calculation?

Use a kitchen scale set to grams. Weigh raw ingredients before cooking for proteins (meat, fish) and weigh dry grains in their uncooked state. Looking up nutrition for "raw" or "uncooked" weights gives you the correct macro grams to enter into the calculator.

Should I weigh meat before or after cooking?

Standard practice is to weigh meat raw, since cooking loses water weight (typically 20 to 25 percent). If you only have cooked weight, multiply by 1.25 to estimate the raw equivalent before looking up nutrition.

What counts as one serving?

You decide based on how you portion the dish. Common defaults: a casserole serves 6 to 8, a soup pot 4 to 6, a baking dish of lasagna 8 to 12. For accuracy, weigh the total finished dish, divide by your chosen serving count, and weigh each portion to that target.

Can I embed this Recipe Nutrition Calculator on my website?

Yes. Click the "Embed" button at the top of this page to customize the size, colors, and theme, then copy the iframe code. Paste it into any HTML page, WordPress site, or CMS. It is completely free, requires no signup, and works on all devices. You can also visit our embed guide at calculory.com/services/embed-calculators for more details.

Medical Disclaimer

This calculator is provided for informational and educational purposes only. It is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making any decisions based on these results. Do not disregard or delay seeking medical advice because of information obtained from this tool.

AI Assistant

Ask about this calculator

I can help you understand the recipe nutrition calculator formula, interpret your results, and answer follow-up questions.

Try asking

Our AI assistant provides general estimates and advice only. Please consult a qualified healthcare professional before making any health-related decisions.

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Meal Calorie Calculator Macro Calculator Carbs to Calories Calculator Calorie Calculator Protein Needs Calculator

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