Convert a number of seconds into hours, minutes and seconds, or convert a time in hours, minutes and seconds into seconds. Useful for video lengths, timers, race times and logs.
Seconds to hours, minutes and seconds
Hours, minutes and seconds to seconds
Time
–
Total seconds
–
How it works
There are 60 seconds in a minute and 3,600 seconds in an hour. To convert seconds, divide by 3,600 for hours, then divide the remainder by 60 for minutes; what is left is the seconds. In reverse, seconds = hours × 3,600 + minutes × 60 + seconds.
| Seconds | Time |
|---|---|
| 60 | 1 min |
| 300 | 5 min |
| 600 | 10 min |
| 1,800 | 30 min |
| 3,600 | 1 hour |
| 5,400 | 1 h 30 min |
| 7,200 | 2 hours |
| 86,400 | 24 hours (1 day) |
Example
5,400 seconds is 1 hour 30 minutes, or 1:30:00. And 2 h 15 min 30 s is 8,130 seconds.
Frequently asked questions
How many seconds are in an hour?
3,600.
How many seconds are in a day?
86,400.
How do I write 1 hour 30 minutes as decimal hours?
1.5 hours. Use the minutes to hours converter for other values.
More free tools: Minutes to hours · Hours to minutes · Time duration calculator · All free tools
Conversions use standard factors. Check critical measurements.