Recipe Scaler

Multiply or divide your baking formulas by servings or batch size. Scale every ingredient accurately down to the tenth of a gram.

Scaling Factors

Quick Multiplier Shortcuts
Recipe Ingredients
Scale Multiplier
1.50×

Scaling 4 servings to 6 servings

Scaled Ingredients Table

Ingredient Original Scaled

Baker's Volume-to-Weight Quick Conversion Reference

When translating American volume cup measurements to precise grams, use these tested commercial density standards:

Ingredient 1 US Cup (Volume) Weight (Grams) Notes & Density
Bread Flour 1 Cup 120 g Fluffed, spooned, and leveled
All-Purpose Flour 1 Cup 125 g Unbleached wheat flour
Granulated White Sugar 1 Cup 200 g Standard sucrose crystal
Brown Sugar (Packed) 1 Cup 220 g Light or dark cane sugar with molasses
Unsalted Butter 1 Cup (2 Sticks) 227 g 1 stick = 1/2 cup = 113.5 g = 8 tbsp
Water / Whole Milk 1 Cup 236 ml (≈ 236 g) 1 fluid ounce ≈ 29.57 ml
Honey / Molasses 1 Cup 340 g Dense viscous syrup

Why Precision Scaling Matters in Baking

In everyday stovetop cooking, you can easily double a stew or pasta sauce by eyeballing extra vegetables and seasoning to taste. In baking, however, chemical transformations rely on precise physical ratios. When you scale an artisan loaf from 4 servings up to 6 servings, your formula multiplier is:

Scaling Factor Formula:
Factor = Target Servings / Original Servings = 6 / 4 = 1.50×

Applying this exact multiplier to 500.0g of flour yields exactly 750.0g of flour. The same 1.50× factor applied to 350g water yields 525.0g, and to 10g salt yields 15.0g. By keeping this linear multiplier consistent across all ingredients, the dough's hydration remains locked at 70.0% and salt remains at 2.0%.

Oven Timing and Pan Considerations When Scaling

While ingredient quantities scale linearly with mathematics, baking time does not:

  • Dividing into Individual Loaves: If you double a bread recipe (2.0×) and shape two separate 800g loaves rather than one giant 1600g loaf, your baking time remains virtually identical to the single-loaf recipe.
  • Baking in a Single Larger Pan: If you pour a 1.5× cake batter into a larger, deeper pan, heat takes considerably longer to penetrate the center. You must reduce the oven temperature by 25°F (15°C) to prevent the exterior crust from scorching before the core sets.
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Frequently Asked Questions

How do I scale a recipe by ingredient amount?

To scale a recipe around a specific available ingredient (for example, if you have 750g of flour when the original recipe calls for 500g), calculate your scale factor by dividing available amount by original amount: 750 / 500 = 1.50×. Then, multiply every other ingredient in the recipe by that exact 1.50× factor to preserve the hydration, seasoning, and chemical leavening balance.

How much does 1 cup of flour weigh?

One standard US cup (240 ml) of unbleached all-purpose flour weighs approximately 125 grams when aerated, spooned into the cup, and leveled with a straight edge. Bread flour weighs slightly more (~120g to 130g), while whole wheat flour weighs roughly 128g to 130g. Scooping directly from a compacted flour bag with a measuring cup can compress up to 150g into a single cup, resulting in dense, dry, rubbery bakes.

Why bake by weight not volume?

Baking is applied food chemistry where ratios between dry starches, liquids, fats, and leavening agents must be precise to within grams. Measuring cups vary by brand, ambient humidity changes how powder compacts, and human scooping habits produce massive discrepancies of 20% to 30%. Using a digital kitchen scale measuring in grams eliminates all variability, guarantees reproducible results, and reduces dishwashing by allowing you to tare the scale and pour directly into one bowl.