Why don't 100 g of flour and 100 g of sugar take up the same volume?

Because their density differs. Flour is airy (~0.52 g/ml), granulated sugar is denser (~0.83 g/ml). Same weight, different volume.

How many milliliters is one cup?

We use the US cup (240 ml). Some British recipes use a 250 ml cup.

How much does a tablespoon weigh?

A level tablespoon holds 15 ml. The weight depends on the ingredient: 15 g water, 8 g flour, 12 g sugar, 21 g honey, 14 g melted butter.

Is this accurate enough for baking?

For everyday cooking, yes. For precise baking (macarons, bread), use a kitchen scale — weighing is always more reliable.

Conversions

Cooking converter

Convert grams, milliliters, cups and spoons for each ingredient. Equivalents take real density into account (flour is lighter than sugar).

Ingredient

Amount

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Equivalent to

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How to use this tool

Many recipes, especially American ones, express quantities in cups, tablespoons or teaspoons. In Europe, we think in grams and milliliters. A generic converter isn't enough: 1 cup of flour doesn't weigh the same as 1 cup of sugar. This tool applies the real density of each ingredient, sourced from King Arthur Baking's weight chart (industry reference), to give you the right equivalent.

Concrete examples

200 g of flour ≈ 1⅔ cup
100 g of sugar ≈ ½ cup
125 g of butter ≈ ½ cup + 1 tablespoon
1 tablespoon of honey ≈ 21 g

Frequently asked questions

Why don't 100 g of flour and 100 g of sugar take up the same volume?: Because their density differs. Flour is airy (~0.52 g/ml), granulated sugar is denser (~0.83 g/ml). Same weight, different volume.
How many milliliters is one cup?: We use the US cup (240 ml). Some British recipes use a 250 ml cup.
How much does a tablespoon weigh?: A level tablespoon holds 15 ml. The weight depends on the ingredient: 15 g water, 8 g flour, 12 g sugar, 21 g honey, 14 g melted butter.
Is this accurate enough for baking?: For everyday cooking, yes. For precise baking (macarons, bread), use a kitchen scale — weighing is always more reliable.