Scale recipe serving sizes up or down with proportional ingredient calculations and human-readable kitchen fractions.
Recipe scaling multiplies each ingredient quantity proportionally by the servings ratio (Target Servings ÷ Original Servings). Standard culinary fractions are preserved so you never struggle with awkward decimal measurements.
Factor = Target Servings ÷ Original ServingsScaled Qty = Original Qty × Factor2.25 cups → 2 1/4 cups | 0.33 cups → 1/3 cup | 1.5 tbsp → 1 1/2 tbspYou have a pancake recipe formulated for 4 servings and want to prepare enough for 6 people.
The yield scale factor is 6 ÷ 4 = 1.5x. Flour: 2 × 1.5 = 3 cups. Milk: 1.5 × 1.5 = 2.25 cups (cleanly formatted as 2 1/4 cups).
Divide the target serving yield by the original recipe yield: Scale Factor = Target Servings ÷ Original Servings. Multiply each individual ingredient amount by this factor.
No. Heat transfer depends on the surface area and depth of the pan, not total recipe volume. If you bake in two separate pans of the original size, the baking time remains virtually the same. If using a deeper single pan, baking time increases moderately, but never doubles.