Serving Size Calculator

Calculate serving size, number of servings, portion weight, calories per serving, cost per serving, and recipe yield for meal prep, recipes, nutrition tracking, catering, and food planning.

Calculate Serving Size

Serving Size = Total Recipe Amount ÷ Number of Servings.
Your result will appear here.

How the serving size calculator works

Enter the total amount:
Add the total recipe weight, volume, or item count after cooking or preparation.

Enter servings or target portion:
Use servings to find portion size, or use target serving size to find how many portions the recipe makes.

Add calories and cost:
Optional calorie and cost fields estimate calories per serving and cost per serving.

Why serving size matters

A serving size calculator helps divide food evenly, track nutrition, control portions, plan meals, and price recipes.

This is useful for meal prep, recipe nutrition, calories per serving, food cost, catering, family meals, leftovers, batch cooking, and restaurant portions.

What your result means

Your result shows serving size, number of servings, usable amount after waste, calories per serving, cost per serving, servings needed for a group, and total amount needed for a target portion plan.

Serving size calculator formulas

Common serving size examples

Frequently asked questions

How do you calculate serving size?

Divide the total recipe amount by the number of servings. For example, a 1,200 gram recipe divided by 8 servings equals 150 grams per serving.

How do I calculate how many servings a recipe makes?

Divide the total recipe amount by your target serving size. For example, 1,200 grams divided by 150 grams per serving equals 8 servings.

Should serving size be based on cooked weight?

For meal prep and calories per serving, cooked or finished weight is usually more practical because cooking changes moisture and total weight.

How do I calculate calories per serving?

Add the calories from all ingredients, then divide by the number of servings. For example, 2,400 calories divided by 8 servings equals 300 calories per serving.