Recipe Scaling & Doubling Calculator
Scale any recipe up or down by any factor. Convert between serving sizes and adjust ingredient quantities perfectly.
🍳 Cooking📐 Scaled Amount = Original Amount x (New Servings / Original Servings)
Original recipe servings
Target servings
Ingredient amount to scale
Please enter valid values.
Formula & Reference
| Variable | Formula | Units |
|---|---|---|
| Recipe Scaling & Doubling Calculator | Scaled Amount = Original Amount x (New Servings / Original Servings) | scaled amount |
Step-by-Step Examples
Example 1
Double Cake
4 servings → 8, ingredient amount 2.
- Scale: 2x | New amount: 4
✓ 4 (2x scale)
Example 2
Triple Soup
6 servings → 18, ingredient 1.5 tbsp.
- Scale: 3x | New: 4.5 tbsp
✓ 4.5 (3x scale)
Example 3
Half a Cookie Recipe
48 → 24 cookies, ingredient 3.
- Scale: 0.5x | New: 1.5
✓ 1.5 (0.5x scale)
Real-World Applications
Home Cooks
Scale any recipe to any number of servings instantly.
Bakers
Double or halve baking recipes with precision.
Caterers
Scale restaurant recipes for large event quantities.
Recipe Writers
Convert personal recipe yields to standard serving sizes.
Common Mistakes to Avoid
⚠️
Not adjusting leavening 1:1
Baking powder and baking soda should be scaled at 75-80% when tripling or more. Leavening doesn't scale linearly — over-leavening causes metallic taste.
⚠️
Not checking pan sizes
Doubling a recipe doesn't mean double pans. A doubled cake recipe may fit one 9×13 or two 9-inch rounds. Adjust baking time for depth.
Frequently Asked Questions
Does every ingredient scale equally? ▾
Most do, but leavening and salt should be scaled conservatively when more than doubling.
How to scale cooking time? ▾
Cooking time doesn't scale with quantity. A doubled batch in the same pan may need 10-20% more time.
Can you halve an egg? ▾
Beat a whole egg and measure half by volume (~1.5 tbsp). Or use 1 large yolk for richness or 2 tbsp whites for binding.