What is the half-life of caffeine?

The half-life of caffeine is about 5-7 hours. That means, if you drink 200 mg of coffee at 2 in the afternoon, 100 mg of it is still active in your body by 7-9 at night.

Une juhtimine

Kohv ja uni

Vaadake, kuidas hilisõhtune kohv teie und segab

Medically Reviewed:

Dr. Priya Sammani, MBBS, PG Dip. FM

Updated on: April 2026

❓ Frequently Asked Questions (FAQ)

Mis on kofeiini poolväärtusaeg?

Kofeiini poolväärtusaeg on umbes 5-7 tundi. See tähendab, et kui jood 200 mg kohvi kell 2 päeval, on 100 mg sellest veel kella 7–9 öösel aktiivne.

🔗 Other Related Calculators

📚 Scientific Sources and Equations

Maailma Terviseorganisatsioon (WHO) ja rahvusvaheliselt tunnustatud kliinilised meditsiinijuhised ja standardvõrrandid.

⚕️ For educational purposes only🔒 No data is stored✅ Completely Free

Medical Disclaimer: These calculators are provided for educational purposes only and are not a substitute for professional medical advice. Always consult a qualified physician regarding any health concerns..