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Clockwork Research

Caffeine Calculator

In a typical work day how many cups of the following would you drink? (1 cup = approx 250ml)


Filter coffee

Instant coffee

Espresso Coffee (50ml shot)

* Note: for 'chain' coffee (e.g. Starbucks) count 2 espresso shots for a medium coffee

Instant decaffeinated coffee


Green Tea

Decaffeinated Tea


Your average daily caffeine intake is mg Update