Step-by-step instructions
- Enter or select Target sleep hours.
- Enter or select Actual sleep hours.
- Tap Calculate.
- Review the result shown directly below the calculator.
Sleep Debt Calculator
Calculate nightly sleep shortfall.
How to use the Sleep Debt Calculator
Calculate nightly sleep shortfall.
What the inputs mean
- Target sleep hours
- Enter the requested time or duration.
- Actual sleep hours
- Enter the requested time or duration.
Formula or calculation method
Actual sleep hours is subtracted from Target sleep hours.
Example
For example, if the first value is 100 and the second is 35, the difference is 65.
How to understand the result
Use the result as an estimate based on the values you entered. For planning decisions, double-check that the input units and assumptions match your real situation.
Tip: Keep all values in compatible units and use values from the same time period when the calculator compares two amounts.