Hours to Seconds converter
Convert h to s instantly. Type any value and get the result in seconds. 1 h = 3,600 s.
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1 h=
3,600s
formula1 h = 3,600 s
Common hours → seconds
| = | 3,600 s | |
| = | 7,200 s | |
| = | 18,000 s | |
| = | 36,000 s | |
| = | 72,000 s | |
| = | 180,000 s | |
| = | 360,000 s | |
| = | 1,800,000 s | |
| = | 3,600,000 s |
Need a different value? .
Convert the other way
Seconds to Hours
How to convert hours to seconds
To convert hours to seconds, multiply the value by 3,600.
Formula
s = h × 3,600
For example:
- →5 h = 18,000 s
- →100 h = 360,000 s
Quick reference
- ▸1 h = 3,600 s
- ▸1 s = 0.000277778 h
When you need to convert h to s
- ·Project planning — converting hour estimates to days or weeks.
- ·Cooking — long-cook times in different units.
- ·Travel — flight and layover durations.
- ·Science — converting between time scales.
- ·Sports — comparing race times.
Frequently asked
How many seconds are in 1 hour?
One hour equals 3,600 seconds.
How do I convert h to s in my head?
Multiply the value in hours by 3,600 to get seconds.
What is the formula for hours to seconds?
s = h × 3,600.
What is the reverse — how many hours in 1 second?
One second equals 0.000277778 hours.
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