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Hours to Seconds Converter

Quick answer: 1 h = 3,600 s. To convert hours to seconds, multiply by 3,600.

h
s

Seconds = Hours × 3,600

Swap: Seconds to Hours

Hours to Seconds conversion table

HoursSeconds
1 h3,600 s
2 h7,200 s
5 h18,000 s
10 h36,000 s
25 h90,000 s
50 h180,000 s
100 h360,000 s

How to convert hours to seconds

Seconds = Hours × 3,600. For example, 2 h = 7,200 s. Type a value in either box above: the other one updates instantly, both ways.

What is an hour?

An hour (h) is 60 minutes or 3,600 seconds.

What is a second?

The second (s) is the SI base unit of time, defined by 9,192,631,770 oscillations of the caesium-133 atom.

How do I convert hours to seconds?

Use the formula Seconds = Hours × 3,600. Type a value in the hours box and the result appears instantly.

How many seconds are in 1 hour?

1 h = 3,600 s.

Is this converter free and private?

Yes. It is free, needs no sign-up, and the calculation runs in your browser: nothing is sent to a server.