Hour To Second Conversion Chart

Hour (h) Second (s)
1 h3600 s
2 h7200 s
5 h18000 s
10 h36000 s
20 h72000 s
40 h144000 s
80 h288000 s
160 h576000 s
320 h1152000 s
640 h2304000 s
1280 h4608000 s
2560 h9216000 s

Convert from hour to second formula

Total second = Total hour x 3600

For example, if you want to convert 15 Hour to Second then,

15 h = 15 x 3600 = 54000 s

Convert from second to hour formula

Total hour =
Total second
54000 s
= 15 h


An hour (symbol: h) is a unit of time usually equal 60 minutes. The time of day is typically expressed in English in terms of hours. Whole hours on a 12-hour clock are expressed using the contracted phrase o'clock, from the older of clock.


The second (symbol: s) is the base unit of time in SI, multiples of seconds are usually counted in hours and minutes. Fractions of a second are usually counted in tenths or hundredths.