HesapHanem

Cooking Measurement Converter

Convert recipe measurements easily.

How it is calculated

The value is first converted to millilitres, then divided by each target unit: ml = value × factor, where the factor is the size of the chosen unit in ml. The tool uses US customary sizes: 1 cup = 236.588 ml, 1 tablespoon = 14.787 ml, 1 teaspoon = 4.929 ml, 1 US fluid ounce = 29.574 ml. Results are shown for ml, cups, tablespoons and teaspoons, rounded to two decimals. The rounding happens only for display, so 3 teaspoons always equal exactly 1 tablespoon underneath. Metric kitchen spoons (15 ml and 5 ml) and 250 ml metric cups are slightly larger, so a recipe from another country may differ by a few percent.

Worked example

Convert 2 cups. First: 2 × 236.588 = 473.18 ml. Tablespoons: 473.18 ÷ 14.787 = 32.00. Teaspoons: 473.18 ÷ 4.929 = 96.00. Cups: 2.00. So 2 cups is 473.18 ml, which is 32 tablespoons or 96 teaspoons.

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Common mistakes

  • Treating a US cup as 250 ml or 240 ml. This tool uses 236.588 ml, so a recipe written for a 250 ml metric cup will come out about 5% smaller.
  • Confusing fluid ounces (volume) with ounces of weight. Flour or butter in ounces is a mass; this tool only converts volume.
  • Assuming a cup of flour weighs the same as a cup of water. Volume conversion does not account for ingredient density.
  • Using a tableware spoon instead of a measuring spoon. Dinner spoons vary a lot in size.

About this calculator

This converter switches recipe volumes between millilitres, US cups, tablespoons and teaspoons, the units that differ most between American recipes and the rest of the world (a US cup is about 236.6 ml, while some countries use a 250 ml metric cup, which this tool does not use). It uses standard kitchen conversion ratios (US cup = 236.588 ml, tablespoon = 14.787 ml, teaspoon = 4.929 ml, so 1 tablespoon = 3 teaspoons) rather than rounding loosely.

Home cooks following a US recipe with metric kitchen tools, bakers scaling a recipe up or down, and anyone translating a family recipe written in "cups" into a precise metric measurement use it to avoid the small errors that throw off baking in particular, where ratios matter more than in general cooking.

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Comments (1)

  • Editorial team

    These conversions are by volume, so they say nothing about weight: a cup of flour and a cup of honey fill the same space but weigh very differently. For a recipe written with 250 ml metric cups, entering 250 ml shows about 1.06 US cups, so the metric cup is roughly 5.7 percent larger than the one used here, which adds up in baking. Which country's recipes do you convert most?

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