Hours to Seconds Converter
1 hour = 3,600 seconds
1 second = 0.0002777778 hours
How to convert hours to seconds
To convert hours to seconds, multiply the value in hours by 3,600.
s = h × 3,600
Example: 3 h × 3,600 = 10,800 s
Hours to Seconds conversion table
| Hour (h) | Second (s) |
|---|---|
| 1 h | 3,600 s |
| 2 h | 7,200 s |
| 3 h | 10,800 s |
| 4 h | 14,400 s |
| 5 h | 18,000 s |
| 6 h | 21,600 s |
| 7 h | 25,200 s |
| 8 h | 28,800 s |
| 9 h | 32,400 s |
| 10 h | 36,000 s |
| 12 h | 43,200 s |
| 15 h | 54,000 s |
| 20 h | 72,000 s |
| 25 h | 90,000 s |
| 30 h | 108,000 s |
| 40 h | 144,000 s |
| 50 h | 180,000 s |
| 60 h | 216,000 s |
| 70 h | 252,000 s |
| 75 h | 270,000 s |
| 80 h | 288,000 s |
| 90 h | 324,000 s |
| 100 h | 360,000 s |
| 150 h | 540,000 s |
| 200 h | 720,000 s |
| 250 h | 900,000 s |
| 500 h | 1,800,000 s |
| 1,000 h | 3,600,000 s |
About these units
Hour (h)
The hour (h) is a metric unit of time accepted for use with the SI. 1 hour equals 3,600 seconds. This value is exact by definition.
Second (s)
The second (s) is a unit of time in the International System of Units (SI). It is the reference unit for all time conversions on this site.
Frequently asked questions
What is 1 hour in seconds?
1 hour equals 3,600 seconds.
How do I convert hours to seconds?
To convert hours to seconds, multiply the value in hours by 3,600. Example: 3 h × 3,600 = 10,800 s
What is 3 h in seconds?
3 hours equals 10,800 seconds.