Hour to Second (h to s)
Convert h to s — Time converter
One hour equals 3600 s, so to convert hours to seconds you multiply the value by 3600. A hour is larger than a second — going the other way, 1 s = 0.0002777778 h. For example, 10 h = 36000 s and 50 h = 180000 s.
3600Click to copy
1 h = 3600 s
Hour to Second formula
1 Hour = 3600 s
Worked examples
- 25 h = 90000 s
- 100 h = 360000 s
Hour to Second conversion table
| Hour (h) | Second (s) |
|---|---|
| 1 | 3600 |
| 2 | 7200 |
| 3 | 10800 |
| 5 | 18000 |
| 8 | 28800 |
| 10 | 36000 |
| 12 | 43200 |
| 15 | 54000 |
| 20 | 72000 |
| 25 | 90000 |
| 50 | 180000 |
| 100 | 360000 |
| 250 | 900000 |
| 500 | 1800000 |
| 1000 | 3600000 |
Frequently asked questions
How many seconds are in one hour?
One hour equals 3600 seconds (s).
How many hours are in one second?
One second equals 0.0002777778 hours (h).
How do you convert hours to seconds?
1 Hour = 3600 s. Use the calculator above for any value.
What is 5 h in s?
5 h = 18000 s.
What is 100 h in s?
100 h = 360000 s.
What is 10 h in s?
10 h = 36000 s.
What is 20 h in s?
20 h = 72000 s.
Is a hour bigger than a second?
Yes. A hour is larger — one hour equals 3600 seconds (s).