Caffeine Intake Calculator

Caffeine & Alcohol tracker by checkit.health

Add up your caffeine for the day and see how it compares to the widely used 400 mg safe daily limit for healthy adults. Tap the counters for each drink you’ve had.
Free · no account needed · your inputs never leave your browser
Brewed coffee (240ml)
95 mg each
Espresso shot
63 mg each
Instant coffee (240ml)
62 mg each
Black tea (240ml)
47 mg each
Green tea (240ml)
28 mg each
Cola (330ml)
34 mg each
Energy drink (250ml)
80 mg each
Dark chocolate (50g)
24 mg each
Your caffeine today
0mg
0% of the 400 mg daily limit
Track your Caffeine Intake over time
Save your result to a free checkit.health account and watch how it changes.
Start free

How much caffeine is safe?

Health authorities suggest up to 400 mg of caffeine per day is safe for most healthy adults — roughly four cups of brewed coffee. Pregnant women are usually advised to stay under 200 mg.

Signs you’ve had too much

Jitteriness, a racing heart, anxiety, an upset stomach and trouble sleeping can all signal too much caffeine. Caffeine can stay in your system for hours, so afternoon coffee can affect sleep.

Frequently asked questions

People also ask

Sources

Educational use only. checkit.health calculators provide general information and are not a medical diagnosis or a substitute for professional advice. Always talk to a qualified healthcare professional about your health, symptoms or before making changes to medication, diet or exercise.

Keep your results

Track this automatically with a free checkit.health account

Save your numbers, see trends over time and unlock 30+ tools — BMI, blood pressure, nutrition, mental wellbeing and a full Children's Health Centre. Your health data stays private on your device.

Related calculators

Related reading