Cooking Conversions & Recipe Scaling Calculator

Scale recipe servings and convert cups/tbsp/tsp/mL into grams and ounces using USDA ingredient densities.

Scaled All-Purpose Flour (spooned & leveled) (2.5× Recipe)
600 g (5 US cups)
Scaled from 2 cup (4 → 10 servings)
Weight in Grams / Ounces 600 g / 21.16 oz
Volume in Milliliters 1182.9 mL
US Cups / Tablespoons 5 cups (80 tbsp)
Recipe Scale Multiplier 2.5×
Inputs
servings
Number of servings the original recipe makes.
servings
Number of servings you want to prepare.
Each ingredient has a distinct bulk density in grams per cup.
Amount listed in the original recipe.
Unit used in the original recipe.
Results & Graph
Scaled All-Purpose Flour (spooned & leveled) (2.5× Recipe)
600 g (5 US cups)
Scaled from 2 cup (4 → 10 servings)
Weight in Grams / Ounces
600 g / 21.16 oz
Volume in Milliliters
1182.9 mL
US Cups / Tablespoons
5 cups (80 tbsp)
Recipe Scale Multiplier
2.5×

Original vs. Scaled Portion Comparison (Grams)

All-Purpose Flour (spooned & leveled) weight before and after scaling
Graph 1 • Ingredient Quantity Before and After Scaling Compares the same ingredient and unit for the original and scaled recipe.
Original • 4 servings 240 g Scaled • 10 servings 600 g
Graph 2 • Original Recipe Yield → Target Yield The multiplier is applied to each ingredient amount.
ORIGINAL YIELD4 2.50× TARGET YIELD10 Scaled from 2 cup (4 → 10 servings)
Graph 3 • Recipe Quantity Scales with Serving Count Ingredient amounts multiply by 2.50× while the recipe method stays the same.
0 cup 2.7 cup 5.4 cup 2 servings: 1 cup 1 2 servings 4 servings: 2 cup 2 4 servings 6 servings: 3 cup 3 6 servings 8 servings: 4 cup 4 8 servings 10 servings: 5 cup 5 10 servings
Summary: Original ingredient weight is 240g and scaled weight is 600g.
Summary: Scaling a recipe from 4 to 10 servings multiplies all ingredients by 2.5×. Your 2 cup of All-Purpose Flour (spooned & leveled) (120 g/cup per King Arthur Baking / USDA Weight Chart) scales to 5 cup, which weighs 600 grams (21.16 oz) or 1182.9 mL.
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Interactive chart & math engine powered by CalculatorGraph

Formula & Mathematical Methodology: Portion Multiplier & Bulk Density Mass-Volume Conversion

Scale Multiplier = Target ServingsOriginal Servings,   Weight (g) = Scaled Cups × Density (g/cup)
Scale = TargetServings / OriginalServings; Grams = ScaledCups × Density(g/cup)
  • Density(g/cup): Mass in grams of 1 US standard cup (236.588 mL) of the chosen ingredient

Rounding: Grams and mL round to 1 decimal place; cups and ounces round to 2 decimal places.

Worked Example: Scale 2 Cups of All-Purpose Flour from 4 Servings to 10 Servings

A 4-serving recipe calls for 2 cups of all-purpose flour (120 g/cup). Scale it to 10 servings and convert to grams.

  1. Scale multiplier = 10 ÷ 4 = 2.5×.
  2. Scaled volume = 2 cups × 2.5 = 5.0 US cups (1,182.9 mL).
  3. Scaled weight = 5.0 cups × 120 g/cup = 600.0 grams (21.16 oz).
Result: 5.0 US cups = 600.0 grams (21.16 oz) at a 2.5× recipe multiplier.

Frequently Asked Questions

Why does 1 cup of flour weigh 120g while 1 cup of water weighs 236.6g?

A cup measures volume (space), not mass. Sifted flour contains air pockets and has a bulk density of ~0.51 g/mL, whereas liquid water has a density of 1.00 g/mL.

Everyday Life · Culinary Weights & Portion Scaling

Cooking Conversions & Recipe Scaling Calculator: inputs, method, and how to read the result

Scale recipe servings and convert cups/tbsp/tsp/mL into grams and ounces using USDA ingredient densities.

Choose inputs for the case you are checking

The defaults are illustrative. Replace them with values for your case and keep the units shown beside each field.

  • Original Recipe Yield (Servings): Number of servings the original recipe makes.
  • Target Servings Needed: Number of servings you want to prepare.
  • Ingredient (USDA Density Profile): Each ingredient has a distinct bulk density in grams per cup.
  • Original Ingredient Quantity: Amount listed in the original recipe.

What the calculation includes

With the default values shown, Scaled All-Purpose Flour (spooned & leveled) (2.5× Recipe) is 600 g (5 US cups). The calculation follows Portion Multiplier & Bulk Density Mass-Volume Conversion; the formula and variable definitions above show how the inputs combine.

One-input check: With the other defaults held constant, changing Original Recipe Yield (Servings) from 4 servings to 5 servings changes Scaled All-Purpose Flour (spooned & leveled) (2.5× Recipe) (600 g (5 US cups)) to Scaled All-Purpose Flour (spooned & leveled) (2× Recipe) (480 g (4 US cups)). This is a comparison inside the calculator's stated model, not a prediction.

Where to use caution

  • Flour density assumes the standard spooned-and-leveled method (120 g/cup) rather than scooped-and-packed.
  • Baking leavening agents (yeast, baking powder) and pan baking times may require non-linear adjustments above 3× scaling.

Scope: Global (US Customary Cup = 236.59 mL & Metric Grams) Check the assumptions and limitations against your situation before relying on the estimate.

More in Everyday Life: Unit Conversion Calculator, Calorie Needs & TDEE Calculator, Tip & Bill Split Calculator.