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Recipe Right recipe scaling calculator icon

Recipe Scaling Calculator

Scale recipes. Perfect portions.

Scale your recipe

Scale factor1.50×

Ingredients

IngredientOriginalUnitScaled
💡 Quick Tip

Scale the serving count and all ingredient quantities will update together.

UNDERSTAND THE TOOL

How Recipe Right works

Scaling a recipe uses a ratio between the original number of servings and the number you want to make. Most ingredients can be multiplied by that scale factor, but cooking time, seasoning and pan size often need judgement as well.

The calculation or process

Recipe Right calculates the scale factor by dividing desired servings by original servings. Each ingredient quantity can then be multiplied by that factor to produce a proportional starting point.

Understanding the result

Not every part of cooking scales perfectly. Doubling a cake mixture does not necessarily mean doubling the baking time, and spices, salt, thickening agents and raising agents may need more cautious adjustment.

Worked example

A recipe serving four that needs to serve six has a scale factor of 6 ÷ 4 = 1.5. An ingredient listed as 200 g therefore becomes 300 g before any practical cooking adjustment.

Practical tips

  • Scale ingredient quantities first, then choose cookware that suits the new volume.
  • Adjust strong seasoning gradually and taste where safe to do so.
  • For baking, consider using multiple tins rather than one much deeper mixture.

Frequently asked questions

Do cooking times scale by the same factor?

Usually not. Time depends on thickness, temperature, cookware and the food itself.

How do I handle half an egg?

For small adjustments, beat the egg and use an appropriate proportion by weight or volume.

Can I scale a recipe down to one serving?

Yes mathematically, but very small ingredient quantities may be impractical and may need sensible rounding.