SumHexa — Calculate anything.

Recipe portions

Scale an ingredient quantity to a new number of servings.

One ingredient at a time, using the same unit before and after (g, mL, spoons…). Serving counts are positive integers. Example: 250 g for 4 servings → 375 g for 6. No rounding to whole ingredients or adjustment of cooking time. Repeat for each ingredient.

Both dots and commas are accepted as decimal separators.

Your inputs stay in your browser.

Method and assumptions

Method version 1.0.0 · Updated

Scale an ingredient

Formula: New quantity = quantity × desired servings / original servings

One ingredient at a time, using the same unit before and after (g, mL, spoons…). Serving counts are positive integers. Example: 250 g for 4 servings → 375 g for 6. No rounding to whole ingredients or adjustment of cooking time. Repeat for each ingredient.

quantity
Original ingredient quantity
original
Original servings
desired
Desired servings

Non-negative quantity with at most 12 integer digits and 6 decimal places; 1 to 1,000,000 servings. Direct proportion, approximate result displayed with at most 12 significant digits.

Calculate with code

These short examples use the same inputs and core calculation as this tool. Adapt validation and formatting to your application.

JavaScript
const originalAmount = 250, originalServings = 4, desiredServings = 6;
console.log(originalAmount * desiredServings / originalServings); // 375
TypeScript
const originalAmount = 250, originalServings = 4, desiredServings = 6;
console.log(originalAmount * desiredServings / originalServings); // 375
Python
amount, original, desired = 250, 4, 6
print(amount * desired / original)  # 375.0
Java
double amount = 250, originalServings = 4, desiredServings = 6;
System.out.println(amount * desiredServings / originalServings); // 375.0
C#
decimal amount = 250, originalServings = 4, desiredServings = 6;
Console.WriteLine(amount * desiredServings / originalServings); // 375