Work out caffeine limit instantly with clear inputs, formula shown and shareable results.
Totals caffeine intake from drinks and compares it with the 400 mg adult ceiling and the 5.7 mg per kilogram EFSA guidance.
Caffeine limits
EFSA considers single doses up to 3 mg/kg and daily intakes up to 5.7 mg/kg safe for adults, with 400 mg a day the usual ceiling
Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
About 95 mg in a filter cup, 63 mg in an espresso shot and 30 to 50 mg in tea, though brewing varies widely.
Yes. 200 mg a day is the usual advice during pregnancy.