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Caffeine Calculator - Daily Intake Tracker

Free caffeine calculator. Track your daily caffeine intake from coffee, tea, and energy drinks. Know if you're within safe limits.

Track your caffeine intake

Enter your values to see results

and click the "Calculate" button

Caffeine Calculator

Track your daily caffeine intake to stay within healthy limits. 400mg/day is considered safe for most adults.

Coffee: 95mg/8oz | Espresso: 63mg/shot | Tea: 47mg/8oz

Caffeine half-life is ~5 hours. If you drink 200mg at 2pm, you'll still have 100mg in your system at 7pm.

How much caffeine is too much?

Safe limit: 400mg/day (4 cups coffee). Pregnant: <200mg. Teens: <100mg. Symptoms of too much: anxiety, insomnia, rapid heartbeat.

When should I stop drinking caffeine?

Stop 6-8 hours before bed. Caffeine can disrupt sleep even if you fall asleep easily.

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