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Recipe portions Calculator

Scale an ingredient to a different serving count. This free recipe portions calculator shows the calculation and its assumptions so you can compare your own figures.

Calculated on your device

Your results

Scaled Ingredient Amount375

Scale an ingredient to a different serving count.

Scale Factor1.5×

Assumptions and estimates

  • Ingredient quantities scale in the same original unit. Cooking time, baking chemistry, seasoning and pan dimensions do not necessarily scale linearly.
  • Method: Scale factor = desired servings ÷ original servings; multiply the ingredient amount by that factor.
  • Keep the ingredient’s original unit. Cooking time, seasoning and baking chemistry may not scale linearly.

Useful next steps

  1. Use Compare options to test an alternative side by side.
  2. Copy, print or download a record of this calculation when you need one.

Reports open your email app addressed to s@s1.ie with the public page address only. Your inputs are never added.

How the recipe portions calculation works

Scale factor = desired servings ÷ original servings; multiply the ingredient amount by that factor.

Keep the ingredient’s original unit. Cooking time, seasoning and baking chemistry may not scale linearly.

Using this calculator

  1. Enter your own figures in the labelled inputs. Keep the currencies, units and time periods consistent.
  2. Choose any applicable rate profile, pattern or assumption shown for this tool. Open additional inputs when relevant.
  3. Review scaled ingredient amount and scale factor, then read the stated assumptions and eligibility conditions before using the result.

Worked example

This is a static example using illustrative inputs, not facts about you or today’s date. The displayed eligibility selections and assumptions apply only to this example.

See example inputs
Original servings
4
Desired servings
6
Original ingredient amount
250
Scaled Ingredient Amount
375
Scale Factor
1.5×

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