COFFEE RATIO CALCULATOR

This calculator is meant to act as a guide. Changing the amount of coffee, water, grind size, or brew time is completely acceptable. The end goal is to consistently craft the perfect cup based on your personal taste. We personally venture outside the normal in our brewing methods to experiment and find a taste that's perfect for us.

A great starting point for most hot brewed coffee is 1:16 (1 gram of coffee for every 16 grams of water). If you like it stronger, go 1:15. If you like it lighter, go 1:17. The “best” ratio is the one that matches your taste and brew method.

Use this simple math:

• Coffee (g) = Water (g) ÷ Ratio
  Example: 480g water at 1:16 → 480 ÷ 16 = 30g coffee

• Water (g) = Coffee (g) × Ratio
  Example: 30g coffee at 1:16 → 30 × 16 = 480g water

The calculator above does this instantly—just pick your method and your amount.

If you mean a standard 8 oz cup (~240g water):

• 1:16 → 15g coffee

• 1:15 → 16g coffee

• 1:17 → 14g coffee

If your “cup” is a bigger mug (12–16 oz), you’ll need more coffee—use the calculator to match your exact size.

Use a scale if you want repeatable coffee. Tablespoons are inconsistent because coffee “fluffs” differently depending on grind size, roast level, and freshness. A cheap kitchen scale is one of the fastest upgrades you can make.

Yes. Bloom water counts toward your total water amount. If you’re brewing 500g total, and you bloom with 50g, you still have 450g left to pour.

Start at:

• V60 / Kalita: 1:16

• Chemex: 1:16 to 1:17 (often tastes cleaner here)

Stronger: 1:15
Lighter: 1:17

If it tastes sour/weak, go slightly finer (or brew longer) before you start dumping extra coffee into it.