Hours to Seconds
1 h = 3,600 seconds. Multiply hours by 3,600 to get seconds; divide seconds by 3,600 to go back.
Hours to seconds conversion table
How to convert hours to seconds
Step 1
Take the value in hours.
10 h
Step 2
Multiply by 3,600.
10 × 3,600
Step 3
Round to the precision you need.
= 36,000 s
The factor is rounded to six significant digits; the copy button on any result gives the full-precision value.
Common hours to seconds conversions
1 h → 3,600 s 2 h → 7,200 s 3 h → 10,800 s 3.9 h → 14,040 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 10.6 h → 38,160 s 11 h → 39,600 s 12 h → 43,200 s 13 h → 46,800 s 14 h → 50,400 s 15 h → 54,000 s 16 h → 57,600 s 17 h → 61,200 s 18 h → 64,800 s 19 h → 68,400 s 20 h → 72,000 s 21 h → 75,600 s 22 h → 79,200 s
These are the values people actually search for. Any other number works in the converter above; only these pages are listed for search engines.
Frequently asked questions
How many seconds are in a h?
There are 3,600 seconds in one h. Going the other way, one s is 0.000277778 hours.
How do I convert hours to seconds?
Multiply the number of hours by 3,600. For example, 10 h × 3,600 = 36,000 s.
What is 5 hours in seconds?
5 hours is 18,000 seconds.
What is 100 hours in seconds?
100 hours is 360,000 seconds.