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Coffee grams → water needed
Pick your method, enter your coffee dose — the water appears below.
REFERENCE TABLE · EVERYDAY · FOOD
Coffee Brewing Ratio Chart
Every common brew method’s coffee-to-water ratio in one chart — 9 methods from espresso’s 1:2 to cold brew’s 1:8 — plus two live lookups: enter your coffee grams to get the water, or enter your water to get the coffee. The ratios below are the consensus ranges across published brewing guides, checked against each other — not copied from any one source. Start in the middle of the range for your method, then adjust by taste.
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How much coffee for your water?
Enter how much water you’re brewing with — the coffee dose appears below.
The full chart: 9 methods by ratio
Sorted strongest first. Ratios are coffee : water by weight — 1 g of water is ~1 ml, so the grams double as millilitres:
| Method | Ratio | Example | Grind size | Notes |
|---|---|---|---|---|
| Espresso | 1:2 | 18 g → 36 g | Fine | Dry dose vs liquid yield in the cup — weighed on a scale, not volumed |
| Moka pot | 1:10 | 20 g → 200 g | Medium-fine | Fill the basket level; water to the valve; never tamp |
| French press | 1:12–1:15 | 30 g → 360–450 g | Coarse | Full immersion extracts more — start at 1:15 |
| Pour over (V60 / Chemex) | 1:15–1:17 | 20 g → 320 g | Medium | The golden-ratio zone; bloom 30–45 seconds first |
| Drip machine | 1:15–1:18 | 60 g → 1,000 g | Medium | The SCA golden ratio (1:16–1:18) lives here |
| Cold brew concentrate | 1:8 | 100 g → 800 g | Coarse | Steep 12–24 h; dilute 1:1 to 1:3 to serve |
| Cold brew, ready to drink | 1:14–1:16 | 50 g → 750 g | Coarse | Serve over ice as-is |
| AeroPress | 1:13–1:15 | 17 g → 238 g | Medium-fine | Classic or inverted; press gently |
| Turkish | 1:10 | 7 g → 70 g | Extra fine (powder) | Ibrik / cezve; bring to a foam, never a boil |
Worked example: 20 g of coffee for a V60 pour over at 1:16 → 20 × 16 = 320 g of water (~320 ml, about 11 oz) — two solid mugs. Brewing a full litre at 1:16? That’s 1,000 ÷ 16 = 62.5 g, the familiar 60-grams-per-litre rule of thumb.
Output · formula · meaning: how to read the chart
| Output | Formula | What it means |
|---|---|---|
| Water needed | coffee grams × ratio | 20 g × 16 = 320 g of water for a pour over. |
| Coffee needed | water grams ÷ ratio | 500 g ÷ 16 = 31.3 g of coffee for half a litre. |
| Ratio strength | lower number = stronger cup | Espresso’s 1:2 is ~8× stronger than a pour over’s 1:16 — before dilution. |
| The 60 g/L rule | 60 g coffee per litre of water | Another way to say 1:16.7 — the quick mental math for big batches. |
The strength trap: ratio isn’t everything
The ratio sets the starting strength, but the final cup is decided by extraction — and extraction is mostly grind size. Grind too fine and the water can’t pass through (or sits too long in immersion): the cup turns bitter and hollow — over-extracted. Grind too coarse and the water rushes past: sour, sharp, thin — under-extracted. That’s why the chart pairs every ratio with a grind: the ratio and the grind are a team. When a cup tastes wrong, change one variable at a time: sour? Grind finer (or lengthen the brew). Bitter? Grind coarser (or shorten it). Weak or watery? Add coffee. And roast matters too: dark roasts are more soluble, so they often taste better slightly weaker than the golden ratio, while a light single origin usually rewards a stronger dose.
Who uses this
- New pour-over owners: the V60 arrives, the scale arrives, and the first question is always “how much coffee?” — 20 g → 320 g is the answer.
- Batch brewers: making a full litre for the office — they use the 60 g/L rule instead of scaling scoops and hoping.
- Cold-brew converts: steeping their first concentrate and discovering 1:8 means 100 g per 800 g — then diluting 1:1 to 1:3 to serve.
- Espresso dialers-in: chasing the 1:2 double shot — 18 g in, 36 g out in 25–32 seconds — and adjusting by taste from there.
Accuracy & limitations
Ratios are consensus ranges, not laboratory constants — they shift with the bean, the roast, the water, and your palate. The lookups use the midpoint of each range (1:16 for pour over, 1:13.5 for French press, 1:16.5 for drip); treat the answer as a starting point and adjust ±1 on the ratio to taste. Espresso is special: its ratio measures dry dose against liquid yield in the cup, not total water pushed through the coffee — that’s why it’s judged by weight on a scale rather than volume. And 1 g of water ≈ 1 ml only for water near room temperature — close enough for brewing, not for chemistry class.
Cite this reference chartBright Side Kit. “Coffee Brewing Ratio Chart.” brightoolbox.com, 2026.
Bright Side Kit. "Coffee Brewing Ratio Chart." https://brightoolbox.com/coffee-brewing-ratio-chart/ Accessed October 22, 2026.Frequently asked questions
How much coffee do I need per cup?
At the golden 1:16 ratio, an 8 oz (240 ml) cup needs about 15 g of coffee — roughly 2–3 tablespoons, though tablespoons are unreliable (1 tbsp ≈ 5–7 g depending on grind and bean). Enter your water amount in the lookup above for the exact dose for your method. A $20 kitchen scale beats every scoop.
Should I measure coffee by weight or volume?
Weight, always. Coffee beans vary in density by roast and origin, so a tablespoon of dark roast weighs noticeably less than a tablespoon of light roast — volume measurements can swing 20% or more. Every ratio on the chart is by weight: 1 g of coffee to X g of water.
What is the golden ratio for coffee?
The Specialty Coffee Association’s golden ratio is 1:16 to 1:18 by weight — 1 gram of coffee per 16–18 grams of water. It’s the baseline for drip and pour over. 1:15 tastes stronger and more concentrated; 1:18 tastes lighter and more delicate. Start at 1:16 and move one step at a time.
Why does espresso use a 1:2 ratio?
Because espresso’s ratio measures something different: dry dose vs liquid yield in the cup, not total water through the coffee. A classic double is 18 g of ground coffee producing 36 g of liquid espresso in 25–32 seconds. It looks extreme next to 1:16 — and it is, roughly 8× as strong — which is why it’s served in 2 oz, not mugs.
How do I make my coffee stronger or weaker?
Change the ratio first, the grind second. Stronger: use more coffee per gram of water (move 1:16 toward 1:15) — but if the cup turns bitter, you overshot into over-extraction and should grind coarser instead. Weaker: move toward 1:17–1:18. Adjust ±1 on the ratio and taste before touching anything else.
Can I use the same ratio for cold brew?
No — cold brew is a different animal. Concentrate brews at about 1:8 (100 g per 800 g water, steeped 12–24 hours) and is then diluted 1:1 to 1:3 with water or milk to serve. Ready-to-drink cold brew skips the dilution and brews around 1:14–1:16. Use the wrong ratio and you get either syrup or brown water.