Conversion
Recipe Scaler
Scale any recipe up or down by adjusting servings. Add ingredients dynamically and convert between units.
Ingredients
Add ingredients and click Scale Recipe
How is this calculated?
Scale Factor = Desired Servings ÷ Original Servings
Scaled Amount = Original Amount × Scale Factor
Unit Conversions available:
1 cup = 236.6 mL = 16 tbsp = 48 tsp
1 oz = 28.35 g
1 lb = 16 oz = 453.6 g
1 tbsp = 3 tsp = 14.8 mL
Example: 4 servings → 8 servings (factor = 2)
2 cups flour → 4 cups (or 946 mL)
1.5 tsp salt → 3 tsp (or 1 tbsp)
3 eggs → 6 eggsFAQ
Frequently asked questions about scaling recipes
How do I scale a recipe from 4 to 8 servings?
Divide desired servings by original servings to get the scale factor: 8 ÷ 4 = 2. Multiply every ingredient by 2. So 1 cup flour becomes 2 cups, 2 eggs become 4 eggs, 1 tsp salt becomes 2 tsp salt.
Can I halve a recipe that calls for 3 eggs?
For odd-numbered eggs when halving: use 1.5 eggs (beat one egg, measure half by volume — about 1.5 tablespoons beaten egg). Alternatively, use 2 egg yolks or 1 egg plus 1 tablespoon water for some recipes.
Does baking time change when scaling?
Baking time doesn't scale linearly. When doubling, add 25-50% more time and check early. When halving, reduce time by about 25%. Use an instant-read thermometer for accuracy. Pan size changes affect timing more than quantity.
How do I convert cups to grams?
It depends on the ingredient. Flour: 1 cup = 120-130g. Sugar: 1 cup = 200g. Butter: 1 cup = 227g. Water/milk: 1 cup = 240g (240mL). For precision baking, always weigh ingredients rather than measure by volume.
Should I scale spices the same way?
Scale spices conservatively — when doubling, use 1.5× for strong spices (cayenne, cloves, cinnamon) and 1.75× for mild spices (basil, parsley). You can always add more but can't remove. Salt should be scaled to taste.
How do I scale recipes for different pan sizes?
Calculate pan areas: round pan area = π × r². Compare areas and scale ingredients by that ratio. Example: 8-inch to 9-inch round: (4.5² × π) ÷ (4² × π) = 1.27, so multiply ingredients by 1.27.