1 hour to seconds
1 h = 3,600 s. Change the amount below, or read the formula and the reference table further down.
1 hour equals
seconds
1 h = 3,600 s
The formula
Hours and seconds both measure time from the same zero, so a single multiplier does the job.
s = h × 3,600
Going the other way? Convert seconds to hours.
Hours to seconds table
Values either side of 1 h.
| Hours (h) | Seconds (s) |
|---|---|
| -4 | -14,400 |
| -3.5 | -12,600 |
| -3 | -10,800 |
| -2.5 | -9,000 |
| -2 | -7,200 |
| -1.5 | -5,400 |
| -1 | -3,600 |
| -0.5 | -1,800 |
| 0 | 0 |
| 0.5 | 1,800 |
| 1 | 3,600 |
| 1.5 | 5,400 |
| 2 | 7,200 |
| 2.5 | 9,000 |
| 3 | 10,800 |
| 3.5 | 12,600 |
| 4 | 14,400 |
| 4.5 | 16,200 |
| 5 | 18,000 |
| 5.5 | 19,800 |
| 6 | 21,600 |
Questions people ask
- How many seconds are in a hour?
- One hour equals 3,600 seconds.
- How do I convert hours to seconds by hand?
- Multiply the number of hours by 3,600. For a rough check, 3,600 is close enough for most everyday use.
- What is 1 hour in seconds?
- 1 hour is 3,600 seconds.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.