Caffeine Intake Calculator

Body weight (kg)

Used to show mg/kg (tolerance varies).

Coffee (cups/day)

Default: ~95 mg per cup.

Coffee strength (mg/cup)

Choose a preset or set custom below.

Custom coffee (mg/cup)

Example: 120 mg.

Tea (cups/day)

Default: ~35 mg per cup.

Tea strength (mg/cup)

Choose a preset or set custom below.

Custom tea (mg/cup)

Example: 35 mg.

Energy drinks (cans/day)

Default: ~80 mg per can.

Energy drink (mg/can)

Choose a preset or set custom below.

Custom energy drink (mg/can)

Example: 80 mg.

How we calculate

We multiply servings by mg per serving and sum them. We also compute mg/kg using your body weight.