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, any ratio 1:8 to 1:20→ gives Grams and tbsp of coffee, water, coffee-maker cups and mugs

Example 6 coffee-maker cups (887 ml) at 1:16 → 55 g coffee

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

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

V60 size, dose, ratio, number of pours→ gives Total water, bloom and each pour as a scale reading

Example V60 02, 20 g at 1:16, 3 pours → 320 g water, 50 g bloom

Chemex size, cups to brew, ratio→ gives Coffee, water, bloom and pour schedule

Example 6-cup Chemex, 4 cups at 1:16 → 37 g coffee, 591 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

Coffee you want, or water you will pour→ gives Water to pour, dose, coffee in the cup

Example 1 liter of drip coffee at 1:16 → Pour 1,143 ml, use 71 g

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

Brew method, dose→ gives A running timer with when and how much to pour

Example V60, 20 g → Bloom 50 g, pours at 0:45 and 1:30

Brew method, roast, altitude→ gives Temperature range in °C and °F

Example Pour-over, medium roast → 92-96°C (198-205°F)

Brew method→ gives Particle size, texture, grinder setting

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

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)