Cups to Grams Converter

Convert cups to grams the right way: by ingredient. A cup of flour weighs about 125 g, a cup of sugar about 200 g and a cup of butter about 227 g, because each one has a different density. Pick your ingredient, enter the amount, and convert between cups, tablespoons, teaspoons, millilitres, grams and ounces.

Weigh out a recipe by turning cup measures into grams for the exact ingredient you are using. Because flour, sugar and butter each have a different density, one cup is not one weight, so this picks the right grams per cup for each. Use it to convert cups to grams, work out ingredient weight from volume, or check how many grams are in a cup of flour, sugar or butter.

  • Ingredient-aware accuracy
  • 100% free
  • No sign-up, no app
  • Instant as you type
  • Works offline after first load
Read the guide: How Many Grams Are in a Cup of Flour?
125

1 cups all-purpose flour = 125 grams

All-purpose flour — quick reference

1 cup
125 g
1/2 cup
62.5 g
1 tbsp
7.8 g
1 tsp
2.6 g

How to use it

  1. 1

    Pick the ingredient

    Choose flour, sugar, butter, water or one of the other common baking ingredients. The grams change with the ingredient, so this matters.

  2. 2

    Enter the amount and units

    Type how much you have and choose the from and to units. The result updates as you type.

  3. 3

    Read or copy the result

    See the converted amount plus a quick reference for that ingredient. Copy it straight into your notes.

When it comes in handy

Following a US recipe abroad

Turn cups of flour and sugar into grams so you can weigh ingredients on a kitchen scale.

Baking by weight

Get accurate grams for each ingredient, which gives more consistent results than scooping cups.

Scaling a recipe

Convert to grams first, scale the numbers, and avoid the rounding mess that fractions of a cup create.

Instant, exact & 100% in your browser

The conversion runs right here in your browser using exact, standard factors. Nothing you type is sent to a server, there is no sign-up and no limit, and once the page has loaded it keeps working even with no connection.

Frequently asked questions

How many grams is one cup of flour?
About 125 grams for all-purpose flour, which is the figure most recipes and this converter use. Bread flour is a touch heavier and cake flour a touch lighter. Flour is easy to over-pack, so for accuracy, spoon it into the cup and level it off, or weigh it instead.
Why does a cup of sugar weigh more than a cup of flour?
Because sugar is denser. A cup of granulated sugar is about 200 grams while a cup of flour is about 125 grams, even though the volume is identical. That is the whole reason a cups-to-grams converter has to be ingredient-aware: there is no single number that works for everything.
Do dry and liquid measuring cups give the same amount?
The cup volume is the same, but how you use it differs. Liquid cups are filled to a line and read at eye level. Dry cups are filled and levelled off with a straight edge. Dry ingredients also pack differently depending on how you scoop, which is exactly why weighing in grams is more reliable than measuring by cup.

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