How to use Recipe Scaler
- Enter Servings the recipe makes now and Servings you want.
- Add one ingredient per line under Ingredients, starting measured lines with an amount.
- Choose Decimal places for quantities that do not make a practical fraction.
- The scaled rows update as you change the fields. Review each scaled row and any unchanged rows.
Example: Recipe Scaler
Scale a recipe for four servings up to six.
Options
- Decimal places
- Choose 0, 2, 4, 6 or 8 places for amounts that do not fit a small practical fraction. Simple fractions such as 3/4 stay fractions when the exact result is practical.
Supported inputs and limits
Where your input is processed
This tool processes your input in this browser. Your text and files are not uploaded to UseFreeTools. Check this tool's limits for anything it may save on your device.
How the serving factor applies to each row
The tool divides the target serving count by the original count, then multiplies each measured amount by that factor. Four to six servings gives 3/2. Two hundred grams becomes 300 grams, while 1/2 teaspoon becomes 3/4 teaspoon. The ingredient's written unit stays attached to its amount; no unit conversion is implied.
Why some amounts are shown as decimals
Whole numbers and small exact fractions are easiest to use in a recipe, so the result keeps them when possible. A fraction with an impractical denominator is shown as an approximate decimal at your chosen precision. Round for your equipment only after checking the scaled quantity and the recipe's tolerance.
Questions about Recipe Scaler
How do I write half a teaspoon?
Start the line with the amount: '1/2 tsp salt'. You can also enter a mixed number such as '1 1/2 cups flour'. Keep the unit and ingredient name after the number.
What happens to a 'to taste' ingredient?
The row stays as written and the result marks it as an unmeasured amount. Decide the new amount while cooking; the tool has no number to multiply.
Can I enter a range such as '2-3 eggs'?
No. A range leaves the starting quantity uncertain, so the tool asks you to enter one amount or write an unmeasured instruction such as 'to taste'.
Will six servings need 50 percent more cooking time than four?
The ingredient factor is 6 / 4 = 1.5, but cooking time does not necessarily follow that ratio. Check pan size, depth and doneness for the actual batch.