Coffee & Sleep Calculator

Visualize your caffeine levels and find your ideal cutoff time.

Drink Type

Time Consumed

Smoker (Faster clearance)

Older Adult 65+ (Slower clearance)

Oral Contraceptives

Pregnancy (3rd Trimester)

Known Slow Metabolizer

No problem sleeping from a caffeine perspective.

*Caffeine amounts are estimates based on data from the Mayo Clinic.
Actual caffeine clearance varies widely based on individual biology.