How do I double a recipe or scale it to a different number of servings?

Paste your ingredients into Recipe ingredients, one per line. Under By servings, enter Original servings and Target servings, or use By multiplier. The Scaled recipe updates live and you can press Copy.

What quantity formats can I paste, like 1 1/2 cups or 2-3 tbsp?

It reads fractions (1/2), mixed numbers (1 1/2), decimals (0.5), Unicode fractions like ½, and ranges such as 2-3. The quantity must be at the start of the line.

Why did a line like a pinch of nutmeg or salt to taste not change?

Only lines that begin with a number are scaled. Lines with no leading quantity, such as a pinch of nutmeg or Vanilla extract to taste, are copied through exactly as written.

How do I adjust a cake recipe for a different pan size?

Choose By pan size, then pick your Current pan and Target pan. The factor comes from the ratio of pan areas, so it works best for cakes, brownies and bakes of similar depth.

Why are grams and millilitres shown as decimals instead of fractions?

In Auto Number format, metric and weight units such as g, ml, oz and lb, and any amount of 10 or more, stay decimal. Choose Fractions or Decimals to force a style.

Yes. Every tool is free to use, with no account and no credit card. The work runs on your device rather than on our servers, which is what keeps it free to run.

Does it work on mobile?

Yes. It runs in current mobile browsers on iOS and Android, with nothing to install.

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Free Recipe Scaler

Scale a whole recipe up or down by servings or a multiplier. Handles fractions, mixed numbers, decimals, and ranges, and rounds to friendly cooking amounts. Paste, scale, copy — all in your browser.

Runs in your browserNo sign-up, no pop-upsNo login requiredFree foreverSmart fraction rounding

Works offline once loaded

Recipe ingredients — one per line

Original servings

Target servings

Number format

Scaling by 2×

Scaled recipe

4 cups all-purpose flour
3 tsp baking powder
1 tsp salt
1 ½ cup sugar
4 large eggs
2 cup milk
4–6 tbsp olive oil
a pinch of nutmeg
Vanilla extract to taste

💡 Quantities are scaled and rounded to friendly cooking amounts (¼, ⅓, ½, ⅔, ¾); grams, millilitres, and larger counts stay decimal. Lines without a number — 'a pinch of salt', 'to taste' — are left untouched, and cooking times/temperatures don't change with scaling. Everything runs in your browser.

How It Works

Scales an entire ingredient list at once — up or down — by a multiplier or to a target serving count. Distinct from a unit converter: it rewrites every quantity in your recipe while leaving the wording intact.

1
Paste your ingredients
One ingredient per line. Fractions (1/2), mixed numbers (1 1/4), decimals (0.5), and ranges (2-3) are all understood.
2
Choose how to scale
Set original and target servings, or pick a multiplier (½×, 2×, 3×, or custom). The scale factor is shown live.
3
Copy the scaled recipe
Every quantity is multiplied and rounded to friendly cooking amounts (¼, ⅓, ½, ⅔, ¾). Lines like "a pinch of salt" or "to taste" are passed through untouched.

Your recipe stays in your browser — nothing is uploaded.

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