Double Recipe Calculator
Double a recipe — multiply every ingredient by 2, with notes on leavening, salt, and bake time.
Result
Double of 1 cup
2.0000 cup
- Multiplier× 2
- Decimal2.0000
- Cooking time~10-15% longer (volume warms slower)
- Leavening tipFor 2×, leavening can stay linear; for 3×+ reduce 10-15%.
Step-by-step
- Double = 1 × 2 = 2.0000 cup.
- Bake time bumps ~10-15%; check earlier than the proportional time and add as needed.
How to use this calculator
- Enter the original amount.
- Pick the unit.
- Note the cook-time tip — volumes scale by 2 but bake time scales by ~1.1-1.15.
About this calculator
Doubling a recipe is the most common scale-up. Linear math works for almost everything except cooking time (volumes warm slower) and very small leavening doses (rounding errors compound). Plan for a slightly bigger pan or longer cook.
Frequently asked
A bit — volumes warm slower than they cool. Add ~10-15% to baking time, more for very dense doughs (whole-grain breads).
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