Scale recipe ingredients up or down based on desired servings. Part of the DevTools Surf developer suite. Browse more tools in the Calculators collection.
Use Cases
Scale a recipe from 4 servings to 24 for a dinner party or event.
Convert a restaurant portion recipe down to home cooking quantities.
Calculate ingredient quantities for a specific number of portions when planning catering.
Adjust a recipe to use up a specific amount of a perishable ingredient.
Tips
Scaling baking recipes is not purely linear — leavening agents (baking powder, baking soda) should be scaled at 75–80% of the proportional amount for batches over 2x original size.
Salt and strong spices scale non-linearly: taste and adjust rather than blindly multiplying.
Pan size matters when scaling baked goods — doubling a recipe often requires two pans rather than one twice as large, to maintain depth and baking time.
Fun Facts
The earliest known written recipe is a Sumerian clay tablet from approximately 1700 BCE describing a beer-making process — it predates most other written records by centuries.
Auguste Escoffier standardized French culinary recipes in 'Le Guide Culinaire' (1903), establishing the tradition of precise, scaled culinary formulas that is still the foundation of professional cooking today.
Bakers use 'baker's percentages' where every ingredient is expressed as a percentage of total flour weight — this makes scaling trivial and allows precise hydration control regardless of batch size.
FAQ
Does linear scaling always work for recipes?
For most savory dishes, yes. For baking, linear scaling breaks down for leavening agents (scale at 75–80% of linear), salt (reduce slightly), and cook time (which rarely scales linearly with batch size).
How do I scale cooking time when doubling a recipe?
Cooking time depends on heat penetration, not volume. Most doubled recipes cook for the same time in the same pan depth. Use internal temperature or visual doneness cues rather than scaled time.
