How much coffee per cup comes down to one number: the ratio of coffee weight to water weight. For most brewing methods that number sits between 1:15 and 1:18, and a 1:16 ratio is the safest starting point for drip and pour-over. This guide gives you the exact grams and tablespoons for every common cup size, the correct ratio for each brew method, why a coffee maker’s “cup” is not the cup you drink from, and why a scoop measures less reliably than a scale.
Last updated: 28 August 2026
How Much Coffee Per Cup? The Short Answer
Use about 11 grams of ground coffee for a 6-ounce cup, or roughly 2 level tablespoons. For an 8-ounce mug, use about 15 grams, close to 2.5 tablespoons. Both figures come from a 1:16 coffee-to-water ratio, which produces a balanced cup across drip and pour-over brewing.
If you want a single rule to remember: weigh your water, divide by 16, and that is your coffee dose in grams. A 300 g brew needs roughly 19 g of coffee.
Everything below is an adjustment to that starting point.
What the Coffee-to-Water Ratio Actually Means
The coffee-to-water ratio is the weight of dry ground coffee divided by the weight of brewing water. A 1:16 ratio means 1 gram of coffee for every 16 grams of water. Because 1 millilitre of water weighs 1 gram, water volume and water weight are interchangeable here.
The Specialty Coffee Association sets its Golden Cup Standard at 55 grams of coffee per litre of water, which works out to roughly 1:18. The National Coffee Association phrases the same idea in kitchen terms: one to two tablespoons of ground coffee per 6 ounces of water.
In practice most specialty brewers land somewhere between 1:15 and 1:18:
- 1:15 produces a stronger, heavier cup with more body
- 1:16 is the reliable middle and the best place to start
- 1:18 produces a lighter, more delicate cup that lets acidity show
Neither end is wrong. A dense, high-grown Sumatran lot with a heavy body may taste better at 1:17 than at 1:15, where it can turn muddy. Adjust in single steps and taste between each one.
How Much Coffee Per Cup: The Measurement Chart
The table below gives ground coffee doses by cup size. Water weight assumes 1 fluid ounce equals roughly 29.6 grams. Tablespoon figures are approximate because a level tablespoon of ground coffee weighs anywhere from 5 to 7 grams depending on grind and roast.
| Cup size | Water | Strong (1:15) | Standard (1:16) | Light (1:18) | Tablespoons at 1:16 |
|---|---|---|---|---|---|
| 6 oz | 177 g | 12 g | 11 g | 10 g | ~2 tbsp |
| 8 oz | 237 g | 16 g | 15 g | 13 g | ~2.5 tbsp |
| 10 oz | 296 g | 20 g | 18 g | 16 g | ~3 tbsp |
| 12 oz | 355 g | 24 g | 22 g | 20 g | ~3.5 tbsp |
One correction worth making, because it appears in most brewing guides: grinding does not change weight. If a recipe calls for 15 grams of coffee, that is 15 grams whether you weigh the whole beans before grinding or the grounds after. Weigh whichever is more convenient.
Buying coffee for a café or roastery? Our wholesale pricelist covers Indonesian green and roasted single origins by the kilogram.
The Cup Problem: Your Coffee Maker Is Not Using 8 Ounces
This is the single most common reason a brew comes out wrong, and most guides skip it entirely. A “cup” on a drip coffee maker carafe is 5 fluid ounces, not the 8 ounces in a measuring cup and not the 10 to 12 ounces in the mug you actually drink from.
So a machine advertised as a 12-cup brewer holds 60 fluid ounces, not 96. That gap is why doubling a mug-based recipe leaves you with coffee that tastes thin.
Before you measure anything, check what your carafe markings mean. Some are printed in cups, some in ounces, and the two produce very different results from the same recipe. Fill the carafe to its top marking, pour that water onto a scale, and note the weight once. That single measurement removes the guesswork permanently.
Coffee-to-Water Ratios by Brew Method
Brew method changes the correct ratio because contact time, grind size, and filtration all shift how much gets extracted. Immersion methods hold the grounds in water the whole time and therefore need a lower ratio than percolation methods.
| Method | Ratio | Notes |
|---|---|---|
| Drip / autodrip | 1:16 to 1:17 | The most forgiving range for daily brewing |
| Pour-over (V60, Chemex) | 1:16 to 1:17 | Grind and pour rate matter as much as ratio |
| French press | 1:12 to 1:15 | Full immersion, heavier body, lower ratio |
| Cold brew, ready to drink | 1:12 to 1:15 | Long steep at low temperature |
| Cold brew concentrate | 1:4 to 1:8 | Diluted before serving |
| Espresso | 1:2 | Pressurised, outside the Golden Cup range entirely |
Our guides to French press coffee ratio and pour-over brewing time go deeper on those two methods.
Why Scoops Are Unreliable: Roast, Grind, and Density
A scoop measures volume. A recipe needs mass. Those two only match when density stays constant, and density never stays constant.
Here is the part most articles state backwards. Light roasts are denser than dark roasts, because darker roasting drives off more moisture and expands the bean structure. A scoop of light roast therefore weighs more than the same scoop of dark roast. If you measure by volume and switch from a dark to a light roast without changing your scoop count, you have quietly increased your dose and your coffee will taste stronger, not weaker.
Grind size compounds the problem. Fine grounds pack more tightly into a spoon than coarse ones, so a tablespoon of espresso grind outweighs a tablespoon of French press grind from the same bag.
Density also varies before roasting. Green coffee arrives at up to 12.5% moisture for Grade 1 lots under SNI 01-2907-2008, and high-grown beans are physically denser than lower-altitude ones. Our Gayo lots from 1,400 to 1,800 metres weigh noticeably more per scoop than a low-grown commercial lot at the same volume. Roasters weighing green intake already know this. Home brewers using a plastic scoop usually do not.
A kitchen scale costs less than a bag of specialty coffee and removes every one of these variables.
Scaling Up: Brewing for a Crowd
Scaling a recipe is arithmetic, not guesswork. Multiply the water weight, then divide by your ratio.
For a full 12-cup drip carafe, which holds 60 fluid ounces or about 1,775 grams of water, a 1:16 ratio calls for roughly 110 grams of ground coffee. That lands near 20 level tablespoons.
Two things change at volume that do not change in a single cup. Larger beds of coffee need slightly coarser grinds to avoid choking the flow, and brew time lengthens, which extracts more from the same dose. If a scaled-up batch tastes harsh at the ratio that works for one cup, coarsen the grind before you change the dose.
Frequently Asked Questions
How much coffee do I use per cup?
Use about 11 grams of ground coffee for a 6-ounce cup and about 15 grams for an 8-ounce mug, based on a 1:16 coffee-to-water ratio. In tablespoons that is roughly 2 and 2.5 respectively. Weigh your coffee for consistent results, since scoop weight varies with grind and roast.
What is the golden ratio for coffee?
The Specialty Coffee Association Golden Cup Standard specifies 55 grams of coffee per litre of water, roughly a 1:18 ratio. Most specialty brewers work somewhere between 1:15 and 1:18 depending on preference and method. A 1:16 ratio is the most reliable starting point for drip and pour-over.
How many tablespoons of coffee per cup?
About 2 level tablespoons per 6-ounce cup, or 2.5 for an 8-ounce mug. One standard coffee scoop equals roughly 2 tablespoons. Tablespoon weight ranges from 5 to 7 grams depending on grind size and roast level, so treat spoon counts as an approximation.
How much coffee for a 12-cup coffee maker?
Roughly 110 grams, about 20 level tablespoons, at a 1:16 ratio. A 12-cup carafe holds 60 fluid ounces rather than 96, because a coffee maker cup measures 5 ounces. Check whether your carafe markings show cups or ounces before measuring.
Does dark roast need more coffee than light roast?
By volume, yes. Dark roast beans are less dense, so a scoop of dark roast weighs less than the same scoop of light roast and delivers a smaller dose. By weight the two are identical. Weighing your coffee removes the difference entirely.
Source Specialty Indonesian Coffee from Indonesia Specialty Coffee
Indonesia Specialty Coffee is a wholesale green coffee beans supplier based in Medan, North Sumatra, shipping Grade 1 lots graded against SNI 01-2907-2008 to roasters, importers, and cafés worldwide.
The best ratio in the world cannot rescue a flat bean. We supply green coffee beans and roasted coffee beans across Gayo, Mandheling, Lintong, Toraja, Bali Kintamani, Flores, and Java, plus wild-certified Kopi Luwak. All lots are Halal certified. Organic and Rainforest Alliance are available on request. [confirm Halal/Organic/Rainforest Alliance certification is current before publishing]
Order at four tiers: 1 kg samples for cupping, 60 kg microlots, 350 kg standard wholesale, and container loads from 9 MT. Check the current pricelist or contact our team for a custom quote.
Read also: Sumatra Coffee: All You Need to Know and Indonesia Specialty Coffee, Which One Is the Best?
