Baking Recipe Scaling Calculator

Scale any baking recipe up or down to any batch size. Enter your ingredients and get every amount scaled proportionally.

Original Yield (servings)

Target Yield (servings)

Scale Factor

2×

Ingredient	Original Amount	Unit	Scaled Amount
			4 cups
			2 cups
			1 cups
			4 large
			1.5 cups
			4 tsp
			1 tsp
			2 tsp

How Recipe Scaling Works

Recipe scaling is multiplication: every ingredient is multiplied by the same scale factor (target yield ÷ original yield). The result is a recipe that produces exactly the target number of servings.

Scale Factor = Target Servings ÷ Original Servings

New Amount = Original Amount × Scale Factor

What to Watch When Scaling Recipes

Leavening agents: For very large scales (4×+), baking powder/soda may not need to increase linearly. Too much leavening causes collapse. Start with the calculated amount and reduce by 10–15% for batches over 4× original.
Eggs: Eggs cannot be divided easily. Round to the nearest whole egg and adjust liquid slightly. For half eggs, beat a whole egg and measure half by weight (approximately 25 g per half).
Salt and spices: Scale these mathematically but taste-test before adding the full scaled amount — flavor perception is not always linear.
Pan size and baking time: Scaling a recipe does not automatically scale the pan or bake time. Use the Pan Size Calculator and Baking Time Calculator in combination.
Mixing: Large batches may mix less efficiently. A stand mixer bowl holds about 12 cups. Consider splitting into sub-batches if scaling above 3× for home equipment.

Scaling Fractions: Common Conversions

Original Amount	Scale 0.5×	Scale 1.5×	Scale 2×	Scale 3×
1 cup	½ cup	1½ cups	2 cups	3 cups
¾ cup	6 tbsp	1 cup + 2 tbsp	1½ cups	2¼ cups
½ cup	¼ cup	¾ cup	1 cup	1½ cups
1 tsp	½ tsp	1½ tsp	2 tsp	1 tbsp
¼ tsp	⅛ tsp	⅜ tsp	½ tsp	¾ tsp