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Recipe & Ingredient Calculators

Recipe Scaling Calculator

Scale a recipe up or down by servings, with adjusted pan size and cooking time guidance.

Enter values

Results update as you type.

Result

Scaling factor

1.5 ×

Scale salt, spices and raising agents a little conservatively — they rarely scale linearly.

Servings
4 → 6
Pan area should change by
1.5 ×
Pan diameter should change by
1.225 ×
Cooking time
Roughly unchanged
Oven temperature
Keep the same — only the time changes

Scaled ingredients

IngredientOriginalScaled
Ingredient 1250375
Ingredient 234.5
Ingredient 3150225
Ingredient 41.52.25

About the Recipe Scaling Calculator

Scale a recipe up or down by servings, with adjusted pan size and cooking time guidance.

Also known as: recipe converter, halve a recipe, double a recipe, scale ingredients, recipe multiplier.

How to use this calculator

  1. Enter original servings, servings you want, ingredient 1 amount, ingredient 2 amount and the other fields.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Review the breakdown shown under the main result.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Formula

scaled amount = original × (desired servings ÷ original servings)

Worked example

Using the values pre-filled in the calculator above:

  • Original servings = 4
  • Servings you want = 6
  • Ingredient 1 amount = 250
  • Ingredient 2 amount = 3
  • Ingredient 3 amount = 150
  • Ingredient 4 amount = 1.5

the calculator returns:

  • Scaling factor: 1.5 ×
  • Servings: 4 → 6
  • Pan area should change by: 1.5 ×
  • Pan diameter should change by: 1.225 ×