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Cups to Grams Converter

The recipe says "1 cup flour, 2 tbsp butter" and you only have a scale? Choose the ingredient, enter the amount and get grams — or convert between US cups, metric cups, millilitres and ounces.

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Needed when converting between volume and weight.

125 g

All-purpose flour: 1 US cup ≈ 125 g

Common measures of All-purpose flour

1 US cup
125 g
½ US cup
62.5 g
⅓ US cup
41.67 g
¼ US cup
31.25 g
1 US tablespoon
7.81 g
1 US teaspoon
2.6 g

Grams per cup come from USDA FoodData Central. Flour and powdered sugar are spooned, not sifted; brown sugar is packed. How you fill the cup changes the weight by 10% or more, so use a scale when baking needs precision.

How to use

  1. Enter the amount and choose the units to convert from and to.
  2. Choose the ingredient when converting between volume and weight.
  3. The table below lists 1 cup, ½ cup, 1 tablespoon and other common measures in grams.

Options explained

Cups and spoons
US cup 236.6 ml, metric cup 250 ml; US tablespoon 14.8 ml and teaspoon 4.9 ml; metric tablespoon 15 ml and teaspoon 5 ml.
Ingredient weights
Grams per cup come from USDA FoodData Central — for example all-purpose flour about 125 g, granulated sugar 200 g, butter 227 g.

How the conversion works

Volume units are converted through millilitres. For an ingredient, the grams per US cup (236.588 ml) give a density, and the tool converts between volume and weight with it:

grams = millilitres ÷ 236.588 × grams per US cup

Examples: 1½ US cups of all-purpose flour is 1.5 × 125 = 187.5 g; 2 US tablespoons of butter is 2 × 14.787 ml ÷ 236.588 × 227 = 28.4 g; 250 g of sugar is 1.25 US cups.

Cup sizes

Unit Millilitres
US cup 236.59
Metric cup 250
UK (imperial) cup 284.13
Japanese cup 200
US pint 473.18
UK (imperial) pint 568.26

Check which cup your recipe means before converting, since the gap between a Japanese and a UK cup is over 40%.

Frequently asked questions

Why do other sites give different numbers?

How flour goes into the cup can change the weight by over 10%, and some sites assume sifted or packed. Use a scale when baking needs precision.

My recipe is Australian or British.

Newer recipes there usually use the 250 ml metric cup, and an Australian tablespoon is 20 ml — choose those units.

My ingredient isn't listed.

Convert by volume, or pick a similar ingredient; cake flour, for example, is close to all-purpose flour.

Privacy

This tool runs entirely in your browser. Your files and text are processed on your device and are never uploaded to our servers.

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