Circadian Rhythm Calculator

Discover your chronotype and optimize your daily schedule for peak performance and better sleep.

Natural wake-up time (no alarm, on days off)

Natural bedtime (when you feel sleepy)

When do you feel most alert?

Your Age

Your Chronotype

Optimal Wake Time

Optimal Bedtime

Peak Performance Windows

Morning Light Exposure

Caffeine Cutoff

Melatonin & Light Timing

Related Calculators

Optimize sleep cycles.

Caffeine intake.

Daily calorie needs.

Heart rate zones.

Calculate exact age.

Productivity metrics.