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Coffee Tool

Coffee Strength Calculator

How strong is your coffee?

Enter the coffee and water you actually used and we’ll show your true brew ratio, how strong that lands, and how much coffee it really makes once the grounds soak up their share.

  • Live ratio & strength read-out
  • Real brewed yield, not just water
  • Plan a brew backwards from mugs

What you brewed

grams

About 1 level tablespoon ≈ 5 g of ground coffee.

g / ml

Your brew strength

1:16coffee : water
Balanced
MilderStronger
1.2mugs brewed (≈8 oz)
6.3%coffee-to-water by weight
Right in the balanced sweet spot for filter coffee.

Plan a brew

Pick how much you want and how strong. We’ll work backwards — accounting for what the grounds absorb — so you actually get that many full mugs.

34 gcoffee
548 gwater (g / ml)

Strength scale, by brew ratio

StrengthRatio (coffee : water)Tastes like
Very strong1:11 – 1:13Bold and syrupy — holds up to milk or ice
Strong1:13 – 1:15Rich and full-bodied, great as a flat white base
Balanced1:15 – 1:17The everyday sweet spot for filter coffee
Mild · Golden Cup1:17 – 1:18The SCA reference point — clean and sweet
Light1:18 – 1:20Delicate and tea-like, easy drinking
Weak1:20 and upThin and washed out

Ratios are by weight for filter, pour-over and press brewing. Espresso is a different regime entirely (around 1:2), so it isn’t on this scale. Below about 1:10 you’re making a concentrate meant to be diluted or poured over ice.

Typical golden ratios

  • Pour-over / drip1:16 – 1:17
  • French press1:15
  • SCA Golden Cup1:18
  • Cold brew concentrate1:8 – 1:5
  • Espresso1:2

Ratio is the biggest lever — but not the only one

If a balanced ratio still tastes sour or bitter, ratio isn’t the problem — grind size, brew time and water temperature all shift extraction. Sour usually means grind finer or brew hotter; bitter means grind coarser or back off the time.

Dial in your grind →
Open the Brew Ratio Calculator →