Light Exposure Calculator
Calculate your daily light exposure in lux-hours for optimal circadian entrainment.
Inputs
min
min
min
lux
hrs
Results
Total Lux-Hours
20,500
% of Recommended68%
AssessmentModerate — Consider more morning light
Evening Melatonin Delay45 min
Evening Light Impact8 / 10
Extra Light Box Needed57 min
How to Use This Calculator
- Enter the light intensity in lux for your primary daytime environment.
- Set the number of hours spent in bright light and dim light each day.
- Input your target bedtime and wake time.
- Review the Circadian Alignment Score and recommended outdoor light exposure duration.
- Adjust indoor lighting levels until the score improves for better sleep quality.
Ad Placeholder
Related Calculators
Circadian Rhythm Planner
Create a chronotype-based daily schedule for optimal sleep, focus, meals, and exercise.
Sleep Cycle Calculator
Calculate optimal bedtime and wake time based on 90-minute sleep cycles to wake between cycles.
Sleep Environment Score Calculator
Rate your bedroom sleep environment across light, noise, temperature, air quality, and habits.
Jet Lag Recovery Calculator
Calculate days to adjust from timezone change with light therapy and melatonin timing recommendations.
Ad Placeholder