How to Convert Seconds to Hours
To convert seconds to hours, divide by 3600, because there are 3600 seconds in one hour (60 seconds × 60 minutes). The result is the number of decimal hours. For example, 3600 seconds is one hour, and 1800 seconds is 0.5 hours.
Hours = Seconds ÷ 3600
Seconds to Hours Examples
Because you divide by 3600, whole hours come out as round numbers:
- 3600 s = 1 h (3600 seconds is one hour)
- 7200 s = 2 h
- 1800 s = 0.5 h
- 86400 s = 24 h (one full day)
Seconds, Minutes and Hours
Seconds do not always divide evenly into hours. When they do not, it can be clearer to break the value into hours, minutes and seconds instead of decimal hours. For example, 3661 seconds is 1.0169 decimal hours, or "1 hour 1 minute 1 second". The converter above shows both the decimal hours value and the hours, minutes and seconds breakdown at the same time.
Seconds to Hours Conversion Chart
Use this conversion chart for common values:
| Seconds | Hours |
|---|---|
| 60 seconds | 0.0167 h |
| 600 seconds | 0.1667 h |
| 1800 seconds | 0.5 h |
| 3600 seconds | 1 h |
| 7200 seconds | 2 h |
| 86400 seconds | 24 h |
