Scale any recipe up or down. Enter your ingredients, set the original and desired servings, and get perfectly proportioned amounts instantly.
Scale factor: 2.00x
Mixing bowl fill level and ingredient proportions
Flour
Sugar
Butter
2.00x
Scaling Up
Each icon represents 1x the original recipe
Original
4
servings
Scaled
8
servings
Two 9-inch rounds or a half sheet pan
Double batch. Split into two pans or use a large sheet pan.
Based on 2.00x scale factor (4 → 8 servings)
Scaling recipes is straightforward for most ingredients — just multiply or divide by your scale factor. However, some ingredients don't scale linearly. Spices and seasonings should be scaled conservatively (start with 1.5x when doubling) and adjusted to taste. Leavening agents like baking powder and baking soda should also be scaled slightly less than proportionally, as too much can affect texture and flavor.
To double a recipe, simply multiply every ingredient amount by 2. Set the original servings to the recipe's serving count and the desired servings to twice that number. This calculator handles all the math for you, including converting awkward amounts into friendly fractions.
Yes. Set your desired servings to half the original. Most recipes scale down well, though baking recipes may need slight adjustments to leavening agents (baking powder/soda). A general rule is to use slightly more than half the leavening when cutting a recipe in half.
Cooking times may need adjustment when scaling. Doubling a recipe doesn't always mean doubling the time — it depends on the cooking method. Stovetop dishes usually take a bit longer, while oven dishes may need a slightly lower temperature and longer time. Check for doneness rather than relying solely on time.
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