Scale your recipe
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New servings
Quick scale:
Your ingredients
Scaled ingredients
Tips for scaling recipes
Season to taste when scaling up
Salt and strong spices don't always scale linearly. When doubling a recipe start with 1.5x the seasoning then taste and adjust — you can always add more.
Eggs are tricky
You can't always halve an egg! For baking, 1 egg = about 3 tablespoons. Use this to scale odd numbers. For 1.5x a recipe needing 2 eggs, use 3 eggs.
Cooking time doesn't scale
Doubling a recipe doesn't mean doubling the cook time. Check doneness earlier than you think — larger volumes retain heat differently.
Leavening agents
Baking powder and baking soda don't scale 1:1. For large batches use 25% less than the calculated amount to avoid a soapy or chemical taste.
Pan size matters
When scaling up baking recipes you may need a different pan size. A bigger pan means thinner batter and shorter bake time — keep an eye on it.
Write it down
Once you've scaled a recipe successfully write down the new amounts. Copy the results and save them in your notes app so you have it next time!
Frequently asked questions
How do I scale a recipe for a different number of servings?
Enter your original serving size and new serving size at the top, then add your ingredients with their amounts. Click Scale and the tool will calculate the new amounts for every ingredient automatically.
Can I halve a recipe?
Yes — use the Halve quick button or enter your original servings and set the new servings to half. All ingredient amounts will be divided by 2. Note that some ingredients like eggs may need rounding — see the tips above.
Does cooking time change when I scale a recipe?
Not directly — cooking time doesn't scale proportionally. When doubling a recipe the cooking time might only increase by 10-20%. Always check for doneness rather than relying purely on time.
How do I convert cups to grams?
Different ingredients have different weights per cup — flour, sugar and butter all weigh different amounts. For precise baking we recommend weighing ingredients in grams rather than using cups.
Is this recipe scaler free?
Yes — RecipeScale is completely free with no account or signup required. Scale as many recipes as you like!