How Many Hours in a Week? (Answer: 168)
There are exactly 168 hours in one 7-day week: 7 days × 24 hours = 168 hours. The total is the same for everyone; how you allocate those hours is the useful part.
The calculation
A day has 24 hours and a week has 7 days. Multiply them:
7 days × 24 hours per day = 168 hours per week.
To convert a different number of weeks, multiply the number of weeks by 168. To convert hours back into days, divide the hours by 24.
Hours in a week and other time periods
| Time period | Calculation | Hours |
|---|---|---|
| 1 day | 1 × 24 | 24 hours |
| 2 days | 2 × 24 | 48 hours |
| 5-day span | 5 × 24 | 120 hours |
| 1 week | 7 × 24 | 168 hours |
| 2 weeks | 14 × 24 | 336 hours |
| 4 weeks | 28 × 24 | 672 hours |
| 52 weeks | 52 × 168 | 8,736 hours |
| 365-day year | 365 × 24 | 8,760 hours |
A 52-week period is 364 days, so it contains 8,736 hours. A 365-day year is one day longer and contains 8,760 hours. “52 weeks” and “one year” are therefore not interchangeable labels for these two rows.
How many minutes and seconds are in a week?
- Minutes: 168 × 60 = 10,080 minutes
- Seconds: 10,080 × 60 = 604,800 seconds
A worked 168-hour weekly budget
Here is one arithmetic example, not a prescription for how anyone should live. Assume 8 hours of sleep each night and 8 hours of work on each of five weekdays:
| Allocation | Calculation | Weekly hours |
|---|---|---|
| Sleep | 8 × 7 nights | 56 hours |
| Work | 8 × 5 days | 40 hours |
| Everything else | 168 − 56 − 40 | 72 hours |
The 72-hour remainder covers commuting, eating, exercise, family, hobbies, chores and everything else in this example. It is “remaining,” not automatically free or discretionary, time. Change either assumption and the remainder changes with it.
Want to plan a date or a longer-term goal? Use our countdown calculator, explore how long until you can retire, or map a longer horizon with the life expectancy calculator.
Common questions
How many hours are in 2 weeks?
Two weeks contain 336 hours: 14 × 24 = 336.
How many hours are in 52 weeks?
Fifty-two weeks contain 8,736 hours: 52 × 168 = 8,736. That is 364 days; a 365-day year has 8,760 hours.
How many hours are in a typical work week?
A full-time schedule in the worked example above is 40 work hours. The surrounding five-day span contains 120 hours in total; those are different measurements.
How many hours are left after sleep and a 40-hour work week?
Using 8 hours of sleep per night, sleep takes 56 hours. After 56 hours of sleep and 40 hours of work, the arithmetic leaves 72 hours for everything else.