Pour-Over Coffee Ratio: Chart, Grams & Tablespoons
The short answer: the golden pour-over coffee ratio is 1:16 — one gram of coffee for every 16 grams of water. For a standard 10 oz mug, that is about 19 g of coffee to 300 g (300 ml) of water. Anywhere between 1:15 and 1:18 makes a good cup. If you are not sure where to start, start at 1:16.
No scale? A rough guide is 2 level tablespoons of ground coffee per 6 oz of water — full conversion chart below.
What a coffee-to-water ratio actually means
A pour-over ratio is just the weight of your ground coffee compared to the weight of your water, written as coffee : water. So 1:16 means one part coffee to sixteen parts water — by weight, not by volume.
Weight matters because beans vary in density. A scoop of light roast and a scoop of dark roast can differ by several grams, and that is enough to swing a cup from balanced to bitter. Water makes it easy: 1 ml of water weighs 1 g, so 300 ml of water = 300 g.
The golden ratio — and when to move off it
The Specialty Coffee Association's Golden Cup standard sets the benchmark at 55 grams of coffee per litre of water (±10%), which works out to roughly 1:16 to 1:18. In everyday practice, most pour-over guides sit between 1:15 and 1:18 — and 1:16 is the spot most people land on.
| Ratio | Tastes like | Best for |
|---|---|---|
| 1:15 | Bold, heavier body, more intense | Dark roasts, or if you add milk |
| 1:16 | Balanced — sweet, clear, easy to drink | Almost everything. The safe default. |
| 1:17–1:18 | Lighter, brighter, more tea-like | Light roasts and fruity, floral coffees |
If your coffee tastes bitter or heavy, move toward 1:17 or 1:18 (less coffee, or more water). If it tastes thin or watery, move toward 1:15. Change one thing at a time.
Pour-over coffee ratio chart
All numbers below use the 1:16 golden ratio. Water is measured in grams (1 ml = 1 g). Tablespoons are approximate — a level tablespoon of ground coffee is roughly 5 g, but it shifts with grind size and roast.
| Cup size | Water | Coffee (scale) | Coffee (tablespoons) |
|---|---|---|---|
| Small cup — 8 oz / 240 ml | 240 g | 15 g | ~3 Tbsp |
| Standard mug — 10 oz / 300 ml | 300 g | 19 g | ~4 Tbsp |
| Large mug — 12 oz / 355 ml | 355 g | 22 g | ~4½ Tbsp |
| Two cups — 17 oz / 500 ml | 500 g | 31 g | ~6 Tbsp |
One thing to expect: what lands in your cup is always a little less than the water you poured. Ground coffee absorbs roughly twice its own weight in water, so 300 g of water through 19 g of coffee gives you about 260 ml in the mug. If you want a full 300 ml in the cup, brew with about 340 g of water and 21 g of coffee.
How to brew it: step by step
Using the standard 1:16 recipe — 20 g coffee : 320 g water:
- Rinse the filter. Put the paper filter in the cone and pour hot water through it. This washes out the papery taste and preheats the dripper. Tip the rinse water out.
- Add the coffee. 20 g of medium-ground coffee. Give it a gentle shake so the bed sits flat.
- Bloom. Pour about 40–60 g of water — just enough to wet all the grounds — and wait 30–45 seconds.
- Pour in stages. Add the remaining water in slow, steady spirals from the centre outward, keeping the water level fairly consistent. Avoid pouring straight onto the paper.
- Swirl and serve. Once it has drained, give the dripper a small swirl to settle the bed, then serve. Total time: about 3–4 minutes.
Want the longer version with photos? We break the whole method down step by step in our pour-over brewing guide.
The ratio is only half the story
You can nail the ratio and still brew a bad cup. These four variables do the rest of the work:
Grind size
Aim for a medium grind — roughly the texture of sea salt. Too fine and the water moves slowly and pulls out bitterness; too coarse and it runs straight through, leaving the cup thin and sour. If you would rather not grind at all, our pre-ground medium roast coffee is already milled to the right size for pour-over.
Water temperature
90–96°C (195–205°F) — the SCA benchmark is 93°C ±3°. If you do not have a thermometer, boil the kettle and let it sit for about 30 seconds.
The bloom
Pour just enough water to wet the grounds — about two to three times the weight of the coffee — and wait 30–45 seconds. Ground coffee soaks up roughly twice its own weight, so you need at least that much simply to saturate it. The bloom lets trapped CO₂ escape so the rest of your water can extract evenly. Skipping it is one of the most common reasons a cup tastes flat.
Brew time
About 3–4 minutes from first pour to last drip for a standard mug. Finishing much under 2½ minutes usually means your grind is too coarse; dragging past 4½ minutes means it is too fine.
Does the ratio change by dripper?
Not really — 1:16 works across a V60, Kalita, Chemex or a drip bag. What changes is how the water moves through. A V60's large single hole drains fast, so it is more sensitive to grind and pour speed; a Chemex uses a thicker filter and brews slower, so people often go slightly coarser. Start at 1:16 on any of them and adjust the grind, not the ratio.
5 common pour-over ratio mistakes
- Measuring with scoops instead of a scale. The single biggest cause of inconsistent coffee.
- Changing two things at once. Adjust the ratio or the grind — not both — or you will not know what worked.
- Using boiling water. Straight off the boil scorches the grounds and adds bitterness.
- Skipping the bloom. Thirty seconds makes a real difference.
- Pouring everything at once. Pour slowly in stages to keep the grounds evenly saturated.
Or skip the math entirely
Ratios, scales, grinders, timers — it is a lot of gear for one cup of coffee, and it is exactly why most people give up on pour-over.
That is the problem KNDZ drip bag coffee was built to solve. Every bag is pre-measured to the right ratio and pre-ground to the right size, so there is nothing to weigh and nothing to calculate. Hang the bag on your mug, add hot water, and you get a specialty-grade pour-over — same result, every time, anywhere.
Brewing just for yourself? A single-serve pour-over drip bag is exactly one cup, already measured — no chart needed. It is also why drip bags travel so well: weighing coffee at a campsite in the wind is nobody's idea of a holiday, which we get into in our guide to coffee for camping.
It is real specialty coffee, not instant: 100% Arabica beans from Ethiopia and Colombia, roasted in micro-batches in Toronto by a Certified Q Grader.
Pour-over coffee ratio FAQ
What is the golden ratio for pour-over coffee?
1:16 — one gram of coffee to 16 grams of water. The SCA's Golden Cup standard sits slightly wider at 55 g of coffee per litre ±10% (about 1:16–1:18), but 1:16 is the most reliable starting point and most people never need to move off it.
How much coffee do I need for one cup of pour-over?
About 15 g of coffee for a small 8 oz (240 ml) cup, or 19 g for a standard 10 oz (300 ml) mug, using the 1:16 ratio.
How do I make a 12 oz pour-over coffee?
Use 22 g of coffee to 355 g (12 oz) of water — that is the 1:16 ratio. In tablespoons, roughly 4½ level Tbsp. Bloom with about 45 g of water for 30–45 seconds, then pour the rest in stages.
How much coffee for 2 cups of pour-over?
About 31 g of coffee to 500 g (500 ml) of water at 1:16 — roughly 6 level tablespoons. Expect around 440 ml in the pot once the grounds absorb their share.
Can I make pour-over coffee without a scale?
You can, but it will be less consistent. A level tablespoon of ground coffee is only around 5 g, and that shifts with grind size and roast — which is why scoops drift so easily. Use the tablespoon column in the chart above as a starting point, or use pre-measured drip bags to remove the problem entirely.
Should the ratio change for light or dark roast?
Slightly. Light roasts are denser and often taste better a touch stronger (1:15–1:16); dark roasts extract quickly and can handle a little more water (1:16–1:18). Start at 1:16 either way and adjust to taste.
Is a pour-over ratio the same as a drip coffee ratio?
Close. Automatic drip machines usually sit around 1:16 to 1:18. The main difference is that with pour-over you control the pour, so the ratio has a more noticeable effect on the cup.
Still have a question? We answer more of them on our coffee FAQ page.
Related guides
- What is drip bag coffee? — how the single-serve pour-over format works, and what it is made of.
- Coffee for camping — six ways to brew outdoors, compared by gear, cleanup and taste.