ReceptOmrekenen.nl
Free calculator
Recipe scaler:
convert for more or fewer servings
Paste your recipe's ingredients, set the original and desired number of servings, and see the new quantities instantly. Works for any recipe — fractions, grams, cups and spoons are all recognised automatically.
Scale a recipe
Scale factor: ×1.5
New quantities
Scaled recipe — ReceptOmrekenen.nl
Tips for scaling recipes
Most ingredients scale proportionally. But baking powder, yeast and salt don't, entirely. When doubling a baking recipe, use roughly 1.5 times the leavening, and start with 75% of the calculated salt. The calculator recognises these ingredients and warns you automatically.
Cooking times don't scale evenly either. Bigger batches aren't always longer on the stove: a pot of soup for 6 cooks nearly as fast as for 2. Trust your senses and test meat or vegetables regularly.
Does a scaled recipe call for 4½ eggs? Beat one egg and use half. The tool points that out for you as well.
Frequently asked questions about scaling recipes
How do I scale a recipe to more servings?
Divide the desired number of servings by the original number — that's your scale factor. Multiply every quantity by it. Going from 2 to 6 servings is a factor of 3: 200 grams of flour becomes 600 grams. The calculator above does this automatically, including fractions like 1½ cups.
Does recipe scaling always work proportionally?
For most ingredients yes, but there are exceptions. Baking powder and yeast don't scale fully proportionally in large batches: when doubling a baking recipe, use roughly 1.5 times the leavening. Salt scales even less — start with 75% of the calculated amount and adjust to taste.
How do I scale a baking recipe?
Baking recipes are more sensitive to scale changes than everyday cooking. Use the calculator for the ingredients, but don't automatically adjust baking time and temperature. Test with a skewer, and prefer two pans over one overfilled one. Read more in our guide to scaling baking recipes.
What do I do with fractions after scaling?
The tool rounds automatically to practical kitchen fractions: halves, thirds, quarters, sixths or eighths. For seasonings you can round further; for main ingredients like flour or meat, precision matters more.
Can I also halve a recipe?
Yes — tap ×½ or enter half the servings. Watch out for eggs: halving a whole egg is tricky. Beat one egg and use half. See also how to halve a recipe.
Is my recipe stored anywhere?
Only in your own browser, so you can pick up where you left off. Nothing is uploaded and no account is needed.
Articles
How to double a recipe
Double any recipe without ruining the flavour or the rise.
Read article →
How to halve a recipe
Cooking for two? Halve quantities, eggs and cooking times the smart way.
Read article →
Scaling baking recipes
Why baking powder, yeast and baking time don't scale linearly — and what works.
Read article →