Recipe Converter & Scaler
Convert cooking measurements and scale recipes by serving size.
Assumptions used in this calculation
- Volume-based, not weight-based: Conversions use standard US volume measurements. Results may differ for dense or light ingredients where weight (grams) gives a more accurate measure than volume.
About this calculator
A recipe written in cups and tablespoons is hard to follow with metric measuring tools, and a recipe sized for four servings needs every single ingredient quantity recalculated, not just doubled by intuition, when cooking for a different number of people. This calculator handles both problems: in convert mode, it converts between common cooking volume units (cups, tablespoons, teaspoons, millilitres) using standard measurement equivalents; in scale mode, it multiplies an ingredient quantity by the ratio of new servings to original servings to resize a recipe up or down. Recalculating a dozen ingredient quantities by hand for a different serving count is slow and easy to make an arithmetic slip in, especially with fractional measurements like ¾ cup. This calculator gives home cooks a fast, accurate way to convert recipes between measurement systems or scale them to feed exactly the right number of people.
Worked example
1 cup to tablespoons
Result: ≈16 tablespoons
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