Recipe Scaler
Scale a recipe up or down by servings or by a factor, with kitchen-friendly fractions and optional metric or US unit conversion. Your work stays on this device whenever possible.
How to use Recipe Scaler
- Paste the ingredient list, one ingredient per line with the amount first.
- Enter how many servings the recipe makes and how many you want, or pick ½, 2x or 3x.
- Choose whether to keep the units, tidy them (6 tsp becomes 2 tbsp), or convert between metric and US.
- Copy, download or print the scaled list.
What Recipe Scaler does
Scale a recipe up or down by servings or by a factor, with kitchen-friendly fractions and optional metric or US unit conversion.
The calculation runs in browser JavaScript from the displayed inputs. No financial, health, or personal values are submitted to ToolkitPoint. For Recipe Scaler, the operation is specifically to scale a recipe up or down by servings or by a factor, with kitchen-friendly fractions and optional metric or US unit conversion.
Worked example
A lasagne for 6 scaled to 4 (×0.667): 1 lb ground beef becomes ⅔ lb, 15 oz ricotta becomes 10 oz, and 3 cups sauce becomes 2 cups. With "Convert to metric" on, those become 302 g, 283 g and 473 ml.
When Recipe Scaler is the right tool
- Halving a family recipe for two or doubling it for a party.
- Converting US cup recipes to metric millilitres and grams (for weights) for kitchens outside the US.
How to verify the result
Change one input and confirm the result moves in the direction you expect. For money, also reproduce one simple case by hand. The final Recipe Scaler output should visibly match this goal: Scale a recipe up or down by servings or by a factor, with kitchen-friendly fractions and optional metric or US unit conversion.
Important limitations
Cups and spoons are converted to millilitres, not grams, because a cup of flour and a cup of sugar weigh different amounts.
A free Recipe Scaler alternative
People looking for Recipe Scaler often compare products such as Calculator.net, WolframAlpha. ToolkitPoint is not affiliated with those services. This page keeps scale a recipe up or down by servings or by a factor, with kitchen-friendly fractions and optional metric or us unit conversion free and available without an account; features, limits, and policies on other products can change, so compare their current product pages before choosing.
Last updated: September 28, 2026
Frequently asked questions
How do I scale a recipe?
Every amount is multiplied by new servings ÷ original servings. For example, going from 4 to 6 servings multiplies everything by 1.5. The tool does this for every line and rounds to fractions you can measure, like ⅓ or ¾.
Which amount formats does it understand?
Whole numbers, decimals (1.5 or 1,5), fractions (1/2, 1 1/2), unicode fractions (½, 1¾) and ranges (2-3 or 2 to 3), followed by common units: cups, tbsp, tsp, fl oz, pints, quarts, gallons, ml, l, oz, lb, g and kg.
Why aren't cups converted to grams?
A cup is a volume, and a cup of flour weighs about 120 g while a cup of sugar weighs about 200 g. Converting without knowing the ingredient would give a wrong number, so cups become millilitres. Ounces and pounds do become grams, because they are weights.
What happens to eggs when I scale?
Countable items like eggs, cloves or lemons get a note such as "about 1½: round to 2", so you can decide. For half an egg, beat one egg and use half.
Do baking times change?
Often, yes. A bigger batch in a bigger or deeper pan usually needs longer at the same temperature, so check it early and often. The tool scales the ingredients only.