Convert Second to Hour
Use this free converter to change seconds (s) into hours (h). Second and hour both measure time. As a quick reference, 1 s equals 0.00027777778 h, and 1 h equals 3600 s.
Free · runs in your browser · no sign-up
Hour (h)
0.00027777778
1 s = 0.00027777778 h
Time conversion table
| Second | Hour |
|---|---|
| 0.01 | 0.0000027777778 |
| 0.1 | 0.000027777778 |
| 0.5 | 0.00013888889 |
| 1 | 0.00027777778 |
| 2 | 0.00055555556 |
| 3 | 0.00083333333 |
| 5 | 0.0013888889 |
| 10 | 0.0027777778 |
| 20 | 0.0055555556 |
| 25 | 0.0069444444 |
| 50 | 0.013888889 |
| 100 | 0.027777778 |
| 1,000 | 0.27777778 |
How to convert Second to Hour
Multiply the second value by 0.00027777778 to get hours.
- Enter the number of seconds you want to convert.
- The converter instantly shows the equivalent value in hours.
- Worked example: 15 s × 0.00027777778 = 0.0041666667 h.
- Use the swap button to reverse the conversion (hour to second).
About these units
Second (s)
- Definition
- The second (s) is the SI base unit of time, defined by the radiation frequency of the caesium-133 atom.
- History
- Once 1/86,400 of a day, it was redefined in 1967 using atomic transitions for far greater precision.
- Current use
- The second is the foundation of timekeeping in science, technology, and daily life.
Hour (h)
- Definition
- An hour (h) is a unit of time equal to 60 minutes, or 3,600 seconds.
- History
- Ancient Egyptians divided day and night into twelve parts each, giving the 24-hour day.
- Current use
- Hours organise work, travel, and daily life around the globe.
Frequently asked questions
How many hours are in a second?
There are 0.00027777778 h in 1 s. To convert, multiply the number of seconds by 0.00027777778.
How do I convert seconds to hours?
Multiply the second value by 0.00027777778 to get hours. For example, 10 s = 0.0027777778 h.
Is this second-to-hour converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Second to other time units
| Unit | 1 Second equals |
|---|---|
| Millisecond (ms) | 1000 ms |
| Microsecond (µs) | 1000000 µs |
| Minute (min) | 0.016666667 min |
| Hour (h) | 0.00027777778 h |
| Day (d) | 0.000011574074 d |
| Week (wk) | 0.0000016534392 wk |
| Month (mo) | 3.8026e-7 mo |
| Year (yr) | 3.1688e-8 yr |