Seconds to hours (s to h): converter and chart

How to convert seconds to hours

Formula: h = s ÷ 3,600

Worked example: 3,600 s → 3,600 ÷ 3,600 = 1 h

Seconds to hours conversion chart

Seconds (s)	Hours (h)
1 s	0.000277778 h
2 s	0.000555556 h
3 s	0.000833333 h
4 s	0.00111111 h
5 s	0.00138889 h
6 s	0.00166667 h
7 s	0.00194444 h
8 s	0.00222222 h
9 s	0.0025 h
10 s	0.00277778 h
12 s	0.00333333 h
15 s	0.00416667 h
20 s	0.00555556 h
24 s	0.00666667 h
30 s	0.00833333 h
36 s	0.01 h
45 s	0.0125 h
48 s	0.0133333 h
60 s	0.0166667 h
72 s	0.02 h
90 s	0.025 h
100 s	0.0277778 h
120 s	0.0333333 h

What is a second?

The second is the SI base unit of time, defined from the vibration frequency of the cesium-133 atom. A minute has 60 seconds, an hour 3,600 and a day 86,400.

What is an hour?

The hour equals 60 minutes or 3,600 seconds. Work time, pay rates, parking and travel durations are counted in hours; a full-time US work week is usually 40 hours.

Frequently asked questions

How many hours are in a second?

A second equals 0.000277778 hours. To convert any value, multiply the number of seconds by 0.000277778.

How do you convert seconds to hours?

Use the formula h = s ÷ 3,600. Example: 3,600 s → 3,600 ÷ 3,600 = 1 h.

How many seconds are in an hour?

An hour equals 3,600 seconds. That is the reverse conversion, from hours to seconds.

Results are rounded to 6 significant digits; the conversion factors are the exact legal definitions.

Convert seconds to hours (s to h)