EatMojo · Free calculator

Ingredient scaler: halve, double or change the yield

Halve or double measured quantities, enter a multiplier, or calculate it from original and required yields. Keeps your units and supports fractions without changing cooking instructions.

A multiplier, not a recipe editor

For ordinary quantity arithmetic only. No recipe text, ingredient names or instructions are accepted. Do not use this for preserving, fermentation, infant feeds or other safety-critical preparation.

How will you scale the quantities?

Multiply each quantity by

Use 2 to double, 1/2 to halve, or 1.5 to multiply by one and a half. This does not determine serving suitability.

Quantity 1

Amount 1

Use decimals or fractions. The result keeps the same unit.

Unit 1

Unmeasured / to taste — leave unscaled

Your entries stay in this page, without being saved or sent to our servers. Use a decimal point (1.5), not a decimal comma or thousands separator.

Your quantities. Your original units.

Scale the numbers, not the method

Illustrative arithmetic250 g × 1.5 = 375 g

Or ½ tablespoon × 2 = 1 tablespoon, using the same measuring spoon. No ingredient or cooking assumptions are added.

US cups, metric cups and Imperial cups remain distinct labels. Spoon sizes can differ too: retain the original measure. There are no automatic conversions.

Browser-only calculation. No analytics, account or saved entries.

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