Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Sleep
Jet Lag Recovery Calculator
Estimate how many days it will take to recover from jet lag based on time zones crossed, travel direction, age, and your chronotype. Use it before international flights to plan recovery time.
Fill in the required fields to see your result.
Sleep
Shift Work Sleep Calculator
Calculate when you should go to sleep to get 8 hours of rest before your shift, accounting for commute time. Essential for night-shift and rotating-schedule workers.
Fill in the required fields to see your result.
Key differences
| Jet Lag Recovery Calculator | Shift Work Sleep Calculator | |
|---|---|---|
| Category | Sleep | Sleep |
| Inputs required | 4 | 2 |
| Result | Recovery Days (days) | Recommended Sleep Start (hours) |
| What it does | Estimate how many days it will take to recover from jet lag based on time zones crossed, travel direction, age, and your chronotype. Use it before international flights to plan recovery time. | Calculate when you should go to sleep to get 8 hours of rest before your shift, accounting for commute time. Essential for night-shift and rotating-schedule workers. |