Cups to grams: ground coffee

A US cup of ground coffee weighs roughly 82 grams, or 2.89 ounces. Weighing is always more repeatable than scooping, which is why professional recipes give grams.

Amount in US cups

Or a weight to convert back

Weight

82.0g

= Exact ground coffee cups to grams Show in

Weight in ounces: 2.892
Cups in the weight you entered: 1.220
Tablespoons in that weight: 19.51
Tablespoons: 16.00
Teaspoons: 48.0
Volume: 236.6
Grams per cup used: 82.0
Implied bulk density: 0.3466 g/mL

Show the working

Amount in US cups = 1
Or a weight to convert back = 100
Grams per cup used = 82 = 82
Weight = 1 * 82 = 82
Weight in ounces = 82 / 28.349523125 = 2.892 46
Tablespoons = 1 * 16 = 16
Teaspoons = 1 * 48 = 48
Volume = 1 * 236.5882365 = 236.588
Cups in the weight you entered = 82 > 0 ? 100 / 82 : 0 = 1.219 51
Tablespoons in that weight = 1.219 51 * 16 = 19.5122
Implied bulk density = 82 / 236.5882365 = 0.346 594

Values are shown to six significant figures here; the arithmetic itself runs on exact fractions and is only rounded where a number is printed.

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The formula

grams = cups x grams per cup
1 US cup = 16 tablespoons = 48 teaspoons = 236.588 236 5 mL exactly
1 ounce = 28.349 523 125 g exactly

Cup figures assume the spoon-and-level convention: fluff the ingredient, spoon it into the cup and sweep the top flat. Dipping the cup straight into the bag packs in up to 20% more.

The volume conversions on this page are exact by definition. Only the grams-per-cup figure is a measured convention, and it is stated above so you can substitute your own.

Common measures of ground coffee

Measure	Grams	Ounces
1 teaspoon	1.71	0.060
1 tablespoon	5.13	0.181
1/4 cup	20.5	0.72
1/3 cup	27.3	0.96
1/2 cup	41.0	1.45
1 cup	82.0	2.89
2 cups	164.0	5.78

Rounded for the kitchen. The calculator above keeps full precision.

Frequently asked

How many grams are in a cup of ground coffee?

About 82 g, using the spoon-and-level convention for a US cup.

How many grams are in a tablespoon of ground coffee?

About 5.13 g, since a tablespoon is exactly one sixteenth of a US cup.

Is a US cup the same as a metric cup?

No. A US cup is 236.588 mL, a metric cup is 250 mL and an imperial cup is 284.13 mL. A recipe that says "cup" without qualification almost always means the US one.

Where the numbers come from

Volume relationships follow the US customary definitions; the grams-per-cup figure is the widely published spoon-and-level convention for this ingredient.