Cooking & baking

Recipe scaling calculator

Scale ingredient quantities from one serving size to another and see the new amount and scaling factor immediately.

Updated on Apr 25, 2026 Calculator, calculation path and examples on one page

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Calculator

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Related guide: Understanding kitchen conversions for grams, ml, tablespoons and teaspoons

Examples

Typical calculations

Extrapolate one ingredient from 4 to 6 servings.

200 g for 6 portions

New quantity: 300.0g

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Reduce liquid from 6 to 3 servings.

500 ml for 3 servings

New quantity: 250.0ml

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Convert the spoonful number to more portions.

2 tbsp for 10 servings

New quantity: 5.00 tbsp

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FAQ

Frequently asked questions

When is linear extrapolation sufficient?

For most ingredient quantities, it's enough if you want to scale a recipe cleanly to more or fewer servings.

What should you pay attention to when it comes to spices?

You can often easily increase spices more carefully than flour, water or milk. The calculator shows the linear basic quantity.

Can I also reduce the amount from 8 to 3 portions?

Yes. The calculator works in both directions and then shows a smaller target quantity accordingly.

Which units can I use?

You can scale grams, milliliters, tablespoons, teaspoons and pieces.

Does the computer replace the feeling of cooking and baking practice?

No. It helps with the basic quantity, especially with doughs and spices; fine adjustment remains important in the kitchen.

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Sources and notes

Rule status and context

Method
New quantity = starting quantity × target portions / starting portions.
Note
The calculation scales ingredient quantities linearly and does not replace fine-tuning of seasoning, cooking time or dough feel.