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Coffee to Water Ratio Calculator — Brew

Coffee Needed

29.6g

Water

474 ml

Ratio

1:16.0

Your Perfect Brew

Coffee Needed
29.6 g
(5.6 tbsp)
Water Needed
474 ml
(16.0 fl oz)
Ratio
1:16.0
(coffee:water)
Temperature
195-205°F (90-96°C)
Time: 4-6 minutes

Brew Ratio

Coffee29.6g
Water474.0g
1
:
16.0

Brew Method Reference

MethodRatioGrind
drip1:16Medium
pour over1:15Medium-fine
french press1:15Coarse
aeropress1:12Fine
espresso1:2Extra fine
cold brew1:5Extra coarse
moka pot1:7Fine
chemex1:16Medium-coarse

Brewing Tips

Fresh beans: Coffee is best within 2-4 weeks of roasting.

Grind fresh: Pre-ground loses flavor quickly. Use a burr grinder.

Filtered water: Coffee is 98% water. Use filtered or bottled water.

Weigh, don't scoop: A scale is more accurate than measuring by volume.

What You'll Need

Baratza Encore Conical Burr Coffee Grinder

Baratza Encore Conical Burr Coffee Grinder

$140-$1704.6
View on Amazon
Hario V60 Ceramic Pour Over Coffee Dripper

Hario V60 Ceramic Pour Over Coffee Dripper

$20-$304.7
View on Amazon
Greater Goods Coffee Scale with Timer 0.1g Precision

Greater Goods Coffee Scale with Timer 0.1g Precision

$30-$454.5
View on Amazon
Finum Brewing Basket Mesh Tea Infuser Medium

Finum Brewing Basket Mesh Tea Infuser Medium

$8-$144.6
View on Amazon
CUSINIUM Glass Teapot with Infuser 32oz Stovetop Safe

CUSINIUM Glass Teapot with Infuser 32oz Stovetop Safe

$18-$284.5
View on Amazon

Matcha DNA Bamboo Whisk Set Chasen + Scoop + Spoon

$10-$154.5
View on Amazon
Baratza Encore Conical Burr Coffee Grinder

Baratza Encore Conical Burr Coffee Grinder

$140-$1704.6
View on Amazon
Hario V60 Ceramic Pour Over Coffee Dripper

Hario V60 Ceramic Pour Over Coffee Dripper

$20-$304.7
View on Amazon
Greater Goods Coffee Scale with Timer 0.1g Precision

Greater Goods Coffee Scale with Timer 0.1g Precision

$30-$454.5
View on Amazon
Finum Brewing Basket Mesh Tea Infuser Medium

Finum Brewing Basket Mesh Tea Infuser Medium

$8-$144.6
View on Amazon
CUSINIUM Glass Teapot with Infuser 32oz Stovetop Safe

CUSINIUM Glass Teapot with Infuser 32oz Stovetop Safe

$18-$284.5
View on Amazon

Matcha DNA Bamboo Whisk Set Chasen + Scoop + Spoon

$10-$154.5
View on Amazon

As an Amazon Associate, we earn from qualifying purchases.

Example Calculations

1Single Pour Over

Inputs

Water12 oz (355 ml)
Ratio1:15
GrindMedium-fine

Result

Coffee Needed23.7 grams (4.5 tablespoons)

Water needed: 12 oz = 355 ml. Coffee needed: 355 ml / 15 = 23.7 grams. Use medium-fine grind, 200 F water, brew for 3 minutes with 30-second bloom.

24-Cup Drip Coffee

Inputs

Cups4 cups x 8 oz = 32 oz
Ratio1:16
GrindMedium

Result

Coffee Needed59.1 grams (11 tablespoons)

Total water: 4 cups x 8 oz = 32 oz = 946 ml. Coffee needed: 946 ml / 16 = 59.1 grams. Use medium grind, brew time 4-6 minutes.

3Cold Brew Concentrate

Inputs

Water1 liter (1000 ml)
Ratio1:5
GrindExtra coarse

Result

Coffee Needed200 grams (38 tablespoons)

For 1 liter of water: coffee needed 1000 ml / 5 = 200 grams. Use extra coarse grind, steep 12-24 hours, then dilute concentrate 1:1 with water or milk.

Frequently Asked Questions

Q

What is the golden ratio for coffee to water?

The golden ratio for coffee is typically 1:15 to 1:18 (coffee to water by weight), meaning 1 gram of coffee for every 15-18 grams (or milliliters) of water. This translates to about 55-65 grams of coffee per liter of water. However, the ideal ratio varies by brew method: drip coffee uses 1:16, pour over uses 1:15, French press uses 1:15, and espresso uses a much stronger 1:2 ratio.

  • SCA (Specialty Coffee Association) golden cup standard: 55 g coffee per 1 L water
  • Drip coffee: 1:16 ratio (62.5 g per liter)
  • Pour over (V60, Chemex): 1:15 ratio (66.7 g per liter)
  • French press: 1:15 with coarse grind for 4 minutes
  • Espresso: 1:2 ratio (18 g coffee yields ~36 g liquid in 25–30 seconds)
Brew MethodRatioGrind SizeBrew Time
Espresso1:2Extra fine25–30 sec
AeroPress1:12Fine–medium1–2 min
Pour Over1:15Medium-fine2.5–4 min
Drip Machine1:16Medium4–6 min
French Press1:15Coarse4 min
Cold Brew1:5–1:7Extra coarse12–24 hrs
Q

How much coffee do I need for 4 cups?

For 4 standard 8-oz cups (32 oz or 946 ml total), you'll need approximately 59 grams of coffee (about 11 tablespoons) using a 1:16 drip coffee ratio. For stronger coffee, use 1:15 (63 grams) or for lighter coffee use 1:17 (56 grams). Always measure by weight for best consistency.

  • 4 cups (32 oz / 946 ml) at 1:16 ratio = 59 g coffee (~11 tablespoons)
  • 6 cups (48 oz / 1,420 ml) at 1:16 ratio = 89 g coffee (~17 tablespoons)
  • 8 cups (64 oz / 1,893 ml) at 1:16 ratio = 118 g coffee (~22 tablespoons)
  • For stronger brew, use 1:15 — adds about 4 g (1 tbsp) per 4 cups
  • A 12 oz bag of beans makes roughly 20–22 cups of drip coffee
Q

What is the best coffee to water ratio for pour over?

Pour over coffee typically uses a 1:15 ratio (1 gram of coffee to 15 grams of water). For a standard 12-oz cup (355 ml), use 24 grams of coffee. Use medium-fine grind, water between 195-205 F (90-96 C), and a total brew time of 2.5-4 minutes.

  • Standard pour over: 24 g coffee for 360 ml water (1:15)
  • Bloom phase: pour 2× the coffee weight in water (48 g) and wait 30–45 seconds
  • Ideal water temperature: 195–205°F (90–96°C) — let boiling water rest 30 seconds
  • Total brew time should be 2.5–4 minutes; adjust grind if too fast or slow
  • V60 uses a slightly finer grind than Chemex due to thinner filter
Q

How do I measure coffee without a scale?

While a scale is most accurate, you can approximate: 1 tablespoon of ground coffee equals about 5-6 grams. For a 1:16 ratio and 8 oz of water (237 ml), use about 2.5-3 tablespoons of coffee. However, coffee densities vary, so results may be inconsistent. A kitchen scale is highly recommended.

  • 1 level tablespoon of ground coffee weighs approximately 5–6 g
  • For 1 cup (8 oz / 237 ml), use 2.5–3 tablespoons
  • A standard coffee scoop holds 2 tablespoons (~10–12 g)
  • Light roasts weigh more per scoop than dark roasts (denser beans)
  • A digital kitchen scale ($10–$15) dramatically improves brew consistency
Q

Why does my coffee taste weak or bitter?

Weak coffee usually means under-extraction: use more coffee, grind finer, or brew longer. Bitter coffee indicates over-extraction: use less coffee, grind coarser, use cooler water (195 F vs 205 F), or reduce brew time. Adjust one variable at a time to dial in your perfect cup.

  • Weak/sour coffee: grind finer, increase brew time, or add more coffee
  • Bitter/harsh coffee: grind coarser, shorten brew time, or lower water temp to 195°F
  • Optimal extraction target: 18–22% of coffee solids dissolved
  • Water above 205°F extracts bitter compounds; below 195°F under-extracts
  • Change only one variable at a time to isolate the improvement
Q

What is the coffee ratio for cold brew concentrate?

Cold brew concentrate uses a much stronger ratio of 1:5 to 1:7 (coffee to water). For 1 liter of water, use 140-200 grams of coffee (extra coarse grind). Steep for 12-24 hours, then dilute concentrate 1:1 or to taste.

  • Concentrate ratio: 1:5 (strong) to 1:7 (milder) coffee to water by weight
  • For 1 liter of water: use 140–200 g coffee (extra coarse, like raw sugar)
  • Steep in refrigerator for 12–24 hours — longer = stronger but more bitter
  • Dilute concentrate 1:1 with water, milk, or ice before drinking
  • Cold brew concentrate keeps 7–10 days refrigerated in a sealed container

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Last Updated: Mar 26, 2026

This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.

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