Pantry & Condiments
Convert ounces of ground coffee to cups
One ounce of ground coffee weighs about 0.334 cup, and half a ounce comes to roughly 0.167 cup. Enter any amount below to convert it, or use the chart further down as a quick reference while you cook.
1 oz of ground coffee =
0.334 cup
About 1/3 cup in recipe notation
- ml
- 78.9
- tbsp
- 5.34
Ground Coffee: 85 g per US cup · USDA FoodData Central. Medium grind. Coffee is best measured in grams — a 1:16 coffee-to-water ratio is impossible to hit by volume.
Full ground coffee chart →Ground Coffee at a glance
Every number on this page comes from a single figure: 85 grams per US cup (USDA FoodData Central).
- 1 cup
- 85 g
- 1 tablespoon
- 5.31 g
- 1 teaspoon
- 1.77 g
- 1 cup in ounces
- 3 oz
- 100 g in cups
- 1.18 cups
- Density
- 0.36 g/ml
ounces to cups chart for ground coffee
Print it, screenshot it, or bookmark this page — these are the amounts recipes ask for most often.
| Ounces (weight) | Cups (US) | Tablespoons (US) | Millilitres |
|---|---|---|---|
| 0.5 oz | 0.167 cup | 2.67 tbsp | 39.5 ml |
| 1 oz | 0.334 cup | 5.34 tbsp | 78.9 ml |
| 2 oz | 0.667 cup | 10.7 tbsp | 158 ml |
| 3 oz | 1 cup | 16 tbsp | 237 ml |
| 4 oz | 1.33 cup | 21.3 tbsp | 316 ml |
| 5 oz | 1.67 cup | 26.7 tbsp | 395 ml |
| 6 oz | 2 cup | 32 tbsp | 473 ml |
| 8 oz | 2.67 cup | 42.7 tbsp | 631 ml |
| 12 oz | 4 cup | 64 tbsp | 947 ml |
| 16 oz | 5.34 cup | 85.4 tbsp | 1263 ml |
How this conversion is calculated
Volume-to-weight conversions are only as good as the density behind them. We treat ground coffee as 85 g per US customary cup, which works out to 0.359 g/ml. From there:
- Your ounces figure is converted into millilitres or grams using standard unit sizes (oz = 28.3 g).
- The density above bridges volume and weight in whichever direction you need.
- The result is rounded the way a cook would round it — to the nearest gram, or to a usable fraction such as 1 1/8 cups.
Measuring ground coffee accurately
Medium grind. Coffee is best measured in grams — a 1:16 coffee-to-water ratio is impossible to hit by volume.
If a recipe matters to you — bread, macarons, anything with a tight hydration or ratio — weigh it. A £10 digital scale removes the single largest source of variation in home baking, and it is faster than washing three measuring cups.
When cups are fine
- Liquids measured in a proper jug, where volume is the honest unit anyway.
- Forgiving savoury cooking: soups, stews, stir-fries, marinades.
- Small amounts of leaveners and spices, as long as you use level spoons.
Frequently asked questions
How many cups are in 1 ounce of ground coffee?
1 ounce of ground coffee is 0.334 cup. This is based on a density of 85 g per US cup.
How many cups are in 2 ounces of ground coffee?
2 ounces of ground coffee is 0.667 cup, and 0.167 cup for half a ounce.
How much is 100 g of ground coffee in cups?
100 g of ground coffee is about 1 1/8 cups. Weight is always the more reliable measurement, so use a scale when the recipe gives grams.
Why do other sites give a different number for ground coffee?
Medium grind. Coffee is best measured in grams — a 1:16 coffee-to-water ratio is impossible to hit by volume.
Do UK and Australian cups give the same result?
No. A US customary cup is 236.6 ml, a metric cup used in Australia and New Zealand is 250 ml, and an old UK imperial cup is 284 ml. Our default is the US cup, but you can pick metric cups in the converter.