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.

Pengurusan tidur

Kopi dan tidur

Lihat bagaimana kopi lewat malam mengganggu tidur anda

Medically Reviewed:

Dr. Priya Sammani, MBBS, PG Dip. FM

Updated on: April 2026

❓ Frequently Asked Questions (FAQ)

Apakah separuh hayat kafein?

Separuh hayat kafein adalah kira-kira 5-7 jam. Ini bermakna, jika anda minum 200 mg kopi pada pukul 2 petang, 100 mg kopi itu masih aktif dalam badan anda pada 7-9 malam.

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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..