Recipe Scaling
Double-Recipe Calculator
Double every ingredient in a recipe, with the results shown as easy fractions.
Measurement System PreferenceAuto-saved
Currently active across all 60 calculators: US Customary (cups, tbsp, oz, °F, in)
Scaling Factor
2.00x
Quick picks:
| Ingredient | Original | Unit | New amount | |
|---|---|---|---|---|
4 cups (4) | ||||
1 1/2 cups (1.5) | ||||
4 tsp (4) | ||||
1 tsp (1) | ||||
2 1/2 cups (2.5) | ||||
2 item (2) | ||||
8 tbsp (8) |
Tips for this batch size:
• Every amount is multiplied by 2 (4 → 8 servings).
How to use this calculator
- 1Enter the recipe's servings, then tap "Double (2.0x)".
- 2Add your ingredients and units.
- 3Read the doubled amounts, shown as easy fractions.
Tip: For baked goods, use two pans of the original size instead of one bigger pan for the most reliable result.
How it's calculated
Doubled Amount = Original Amount × 2
We do the math at full precision and only round the final answer, so the numbers you see are as close as kitchen measurements allow. The assumptions and limits are listed alongside.
Worked example
Scenario: Doubling a waffle recipe that calls for 1 3/4 cups milk and 2 tbsp sugar.
Inputs1.75 cups milk, 2 tbsp sugar
CalculationMilk: 1.75 × 2 = 3.5 cups (3 1/2 cups); Sugar: 2 × 2 = 4 tbsp (1/4 cup)
Result3 1/2 cups milk and 1/4 cup sugar
Common questions
Should I double the leavening in a quick bread?
Yes. Doubling the baking powder or soda works fine when you bake the batter in two pans of the original size. Problems usually come from baking a doubled batter in one deep pan, not from the leavening amount.