Free Coffee Calculators and Tools

Dose in grams, shot style→ gives Target yield, ratio, typical shot time

Example 18 g dose at 1:2 → 36 g in the cup

Dose, target ratio, actual time and yield→ gives On target or too fast / slow, plus what to change

Example 18 g in, 36 g out, 28 s → On target

Water or coffee amount, strength→ gives Grams of coffee, ml of water, cups

Example 720 ml water at 1:16 → 45 g coffee

Coffee in grams, strength→ gives Total water, bloom water, brew time

Example 20 g coffee at 1:16 → 320 g water

Press size, strength→ gives Grams of coarse coffee, water, steep time

Example 17 oz (500 ml) press at 1:13.5 → 37 g coarse coffee

Standard or inverted, coffee in grams, strength→ gives Total water, bloom water, plunge time

Example 17 g coffee at 1:15 → 255 g water

Batch size, concentrate or ready-to-drink→ gives Grams of coffee, water, steep time

Example 32 oz batch at 1:5 → 189 g coffee

Pot size (1 to 12-cup)→ gives Water and grounds to fill it

Example 6-cup pot → 300 ml water, 30 g grounds

Drink type, servings→ gives Estimated mg of caffeine and % of 400 mg guidance

Example 2 drip coffees (8 oz) → 190 mg (about 48% of 400 mg)

Brew method→ gives Particle size, texture, grinder setting

Example Drip / pour-over → 600 to 800 microns, medium