Recipe Scaler
Scale any recipe up or down by servings count.
Ingredients
Frequently Asked Questions
How do I scale a recipe up or down?
Divide your desired servings by the original serving count to get the scaling factor, then multiply every ingredient amount by that factor. To double a recipe for 4 (to serve 8): factor = 8 ÷ 4 = 2. Multiply every ingredient by 2. Enter your numbers and this calculator does it instantly.
Does scaling always work for baking?
Linear scaling works well for most ingredients. Baking is more nuanced: leavening agents (baking powder, baking soda, yeast) don't always scale linearly — very large batches may need slightly less. Salt and strong spices are best adjusted to taste. For small-scale changes (halving or doubling), linear scaling is generally fine.
What does "halving a recipe" mean mathematically?
Halving means scaling to 50% — multiply all ingredient amounts by 0.5. Tricky conversions: half of 3/4 cup = 3/8 cup (which is 6 tablespoons). Half of 1 tablespoon = 1.5 teaspoons. This calculator converts the results to practical measurements.
Can I scale a recipe for a different pan size?
Yes — for baking, calculate the area of your original pan vs the target pan (area = length × width for rectangular, π × r² for round), then divide to get the scaling factor. A 9×13 pan (117 sq in) scaled to an 8×8 (64 sq in) = factor of 0.55. The recipe scaler handles the ingredient math once you have the factor.