Half Recipe Calculator
Halve a recipe — apply 0.5× to every ingredient, with notes for items that don't halve cleanly.
Result
Half of 1 cup
½ cup
Apply 0.5× to every ingredient.
- Decimal0.5000
- Multiplier× 0.5
- TipHalve cooking time only by ~10%.
Step-by-step
- Half = 1 / 2 = 0.5000 cup.
- Cooking time changes only ~10% when halving.
How to use this calculator
- Enter an original ingredient amount and unit.
- Read the halved amount, with fraction notation when possible.
About this calculator
Halving a recipe is straightforward arithmetic — divide every ingredient by 2 — but eggs and tablespoons-of-leavening don't always halve cleanly. Half an egg means beating one and weighing out 25 g; half a teaspoon of baking soda is fine. Cooking time barely changes (≤10%) for most recipes.
Frequently asked
Crack one egg, beat thoroughly, and weigh out half (≈25 g). Save the rest in a sealed container for up to 2 days, or use in scrambled eggs.
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