Convert Hours to Seconds
1 Hour (hr) = 3,600 Seconds (s). Use the free converter below to instantly convert any hour value to seconds, or view the full conversion table and formula.
1 hr = 3,600 s
Hour to Second Conversion Table
How to Convert Hours to Seconds
To convert hours to seconds, multiply the time in hours by 3600. For example, 10 hr × 3600 = 36000 s.
Worked Example: Convert 2 hr to s
Start with the value in hours
2 hr
Apply the formula
s = 2 × 3600
Calculate the result
2 hr = 72 s
Hour to Second Examples
0.25 hr is equal to 9 s. Using the formula hr × 3600, 0.25 hr converts to 9 s.
0.5 hr is equal to 18 s. Using the formula hr × 3600, 0.5 hr converts to 18 s.
1 hr is equal to 36 s. Using the formula hr × 3600, 1 hr converts to 36 s.
2 hr is equal to 72 s. Using the formula hr × 3600, 2 hr converts to 72 s.
3 hr is equal to 108 s. Using the formula hr × 3600, 3 hr converts to 108 s.
4 hr is equal to 144 s. Using the formula hr × 3600, 4 hr converts to 144 s.
6 hr is equal to 216 s. Using the formula hr × 3600, 6 hr converts to 216 s.
8 hr is equal to 288 s. Using the formula hr × 3600, 8 hr converts to 288 s.
Converting Seconds to Hours
Need the reverse conversion? Use the table below for a quick reference converting seconds back to hours.
| Seconds (s) | Hours (hr) |
|---|---|
| 1 | 0.000278 |
| 5 | 0.001389 |
| 10 | 0.002778 |
| 15 | 0.004167 |
| 30 | 0.008333 |
| 45 | 0.0125 |
Hours to Seconds FAQ
How many seconds is 1 hour?
1 hour equals approximately 3600 seconds.
What is the formula to convert hours to seconds?
Multiply the value in hours by 3600 to get seconds. Formula: s = hr × 3600.
How many hours is 1 second?
1 second equals approximately 0.000277778 hours.
Understanding Hours and Seconds
What is a Hour (hr)?
The hour (hr) is a universally used unit of time. It is commonly abbreviated as hr and relates to seconds by a factor of 3,600.
What is a Second (s)?
The second (s) is a universally used unit of time. It is commonly abbreviated as s and relates to hours by a factor of 2.7778e-4.