Recipe Scaler

Scale any recipe without the mental math

Whether you are cooking for a crowd or shrinking a family dinner down to two, the Recipe Scaler does the tedious arithmetic for you. Paste your ingredient list, tell it either the new serving count or a plain multiplier, and it re-prints every measurement, converting awkward decimals back into clean kitchen fractions like 2/3 and 1 1/2. Lines it cannot read (such as "Pinch of salt" or "to taste") are passed through untouched, so nothing gets lost.

Fractions, decimals, and mixed numbers all work

The parser understands whole numbers (3 eggs), decimals (1.5 tbsp oil), simple fractions (1/2 cup sugar), mixed numbers (1 1/3 cups milk), and even unicode fraction symbols like ½ and ¾ pasted straight from a website. Only the leading amount on each line is scaled, so the ingredient name and unit stay exactly as you typed them. Everything runs in your browser & nothing you paste is ever uploaded.

How to use it

1. Paste your recipe into the box, one ingredient per line.
2. Either enter the original servings and desired servings, or type a multiplier directly (e.g. 1.5).
3. Click Scale recipe — or tap the quick Half or Double buttons.
4. Read the re-calculated list below, then hit Copy result to paste it into your notes.

FAQ

How does it round the scaled amounts?

It snaps results to common kitchen fractions (halves, thirds, quarters, eighths, and so on) whenever one is close, and falls back to a two-decimal number only when no tidy fraction fits.

What if a line has no number?

Lines without a leading amount — like "Salt to taste" — are copied through unchanged so your instructions stay intact.

Are these amounts exact?

Scaled quantities are estimates rounded to practical kitchen measures. For baking, where ratios matter most, weigh by grams when you can for the best accuracy.

Is my recipe private?

Yes. All the math happens locally in your browser — nothing is sent to a server or stored anywhere.