Convert Hour to Second
1 hour = 3,600 seconds (h to s).
Need to move between hours and seconds? A hour is larger than a second — one hour contains 3,600 seconds. One second works out to 0.000277778 hours in the other direction. The converter above does this in real time, and the reference chart lists the values that come up most often.
1 h = 3,600 s
How to convert Hours to Seconds
Multiply the hour value by 3,600 to get seconds.
Example: 10 hours = 36,000 seconds.
Hour to Second Conversion Chart
| Hours | Seconds |
|---|---|
| 1 h | 3,600 s |
| 2 h | 7,200 s |
| 3 h | 10,800 s |
| 5 h | 18,000 s |
| 10 h | 36,000 s |
| 20 h | 72,000 s |
| 25 h | 90,000 s |
| 50 h | 180,000 s |
| 100 h | 360,000 s |
| 1000 h | 3,600,000 s |
Frequently Asked Questions
- How many seconds are in a hour?
- There are 3,600 seconds in 1 hour.
- How do you convert hours to seconds?
- Multiply the hour value by 3,600 to get seconds.
- What is 5 hours in seconds?
- 5 hours equals 18,000 seconds.
- What is 100 hours in seconds?
- 100 hours equals 360,000 seconds.
- What is 1 second in hours?
- 1 second equals 0.00027777778 hours.
- Is this hour to second converter free?
- Yes. The converter is free, needs no sign-up, and runs entirely in your browser — the values you enter never leave your device.