Coffee-to-Water Ratios by Brew Method
The ratio of coffee grounds to water is the single biggest variable you can control in brewing. Too little coffee and the brew is thin and sour; too much and it becomes bitter and astringent. Each brewing method has a golden range — this calculator uses the widely accepted specialty coffee ratios as defaults, which you can adjust to taste.
Standard Ratios
- Drip coffee: 1:16 (1 g coffee per 16 g water)
- Pour-over: 1:15 (slightly stronger, cleaner cup)
- French press: 1:12 (full immersion, richer body)
- Espresso: 1:2 (highly concentrated, 18–20 g in, 36–40 g out)
Frequently Asked Questions
What is the golden ratio for coffee?
The Specialty Coffee Association (SCA) recommends approximately 55 g of coffee per litre of water (roughly 1:18) as the "Golden Cup Standard" for drip coffee. Most home brewers find 1:15 to 1:17 to be the sweet spot, depending on roast level and personal taste.
Should I measure coffee by weight or volume?
Weight (grams) is always more accurate than volume (tablespoons) because coffee density varies by grind size and roast. A kitchen scale is the single best upgrade for consistent brewing. That said, this calculator provides both measurements so you can use whichever you have.
