Hours to Seconds

Convert hours to seconds. Live result, plus a quick-reference table for common values.

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⇆ Convert Seconds to Hours instead

Frequently asked questions

How do I convert hours to seconds?

Multiply the hour value by 3600. So 1 hour = 3600 s, and the calculator above does it instantly for any number.

How many seconds are in a hour?

There are 3600 seconds in one hour. The reference table shows the conversion for common values.

Is this hr to s converter free?

Yes, completely free, no sign-up, and it runs entirely in your browser, so nothing is uploaded.