Convert hours to seconds

Conversion Calculator

Enter your value in the conversion calculator below.

TIP: If the result of your conversion is 0, try increasing the "Decimals".

How to convert hours to seconds: Enter a value in the hours field and click on the "Calculate seconds" button. Your answer will appear in the seconds field.

Conversion Definitions

The following is a list of definitions relating to conversions between hours and seconds.

What is an hour (hr)?

An hour is a unit of time. The symbol for hour is hr. There are 0.00027778 hours in a second.

What is a second (s or sec)?

A second is a unit of time. The symbol for second is s or sec. There are 3,600 seconds in an hour.

Conversion Formula

Let's take a closer look at the conversion formula so that you can do these conversions yourself with a calculator or with an old-fashioned pencil and paper.

The formula to convert from hours to seconds is:

seconds = hours x 3,600

Conversion Example

Next, let's look at an example showing the work and calculations that are involved in converting from hours to seconds (hr to s).

Hour to Second Conversion Example

Task: Convert 15 hours to seconds (show work)

Formula:
hours x 3,600 = seconds

Calculations:
15 hours x 3,600 = 54,000 seconds

Result:
15 hours is equal to 54,000 seconds

Conversion Table

For quick reference purposes, below is a conversion table that you can use to convert from hours to seconds.

Hours to Seconds Conversion Chart

hours (hr)	seconds (s)
1 hours	3,600 seconds
2 hours	7,200 seconds
3 hours	10,800 seconds
4 hours	14,400 seconds
5 hours	18,000 seconds
6 hours	21,600 seconds
7 hours	25,200 seconds
8 hours	28,800 seconds
9 hours	32,400 seconds
10 hours	36,000 seconds
20 hours	72,000 seconds
30 hours	108,000 seconds
40 hours	144,000 seconds
50 hours	180,000 seconds
75 hours	270,000 seconds
100 hours	360,000 seconds
250 hours	900,000 seconds
500 hours	1,800,000 seconds
750 hours	2,700,000 seconds
1,000 hours	3,600,000 seconds
2,500 hours	9,000,000 seconds
5,000 hours	18,000,000 seconds
7,500 hours	27,000,000 seconds
10,000 hours	36,000,000 seconds
25,000 hours	90,000,000 seconds
50,000 hours	180,000,000 seconds
75,000 hours	270,000,000 seconds
100,000 hours	360,000,000 seconds
250,000 hours	900,000,000 seconds

Related Units

This table provides a summary of the Time units within their respective measurement systems.

Unit	Symbol	Description
nanoseconds	ns	1 second = 1,000,000,000 nanoseconds
microseconds	μs	1 second = 1,000,000 microseconds
milliseconds	ms	1 second = 1,000 milliseconds
seconds	s or sec	base unit of Time
kiloseconds	ks	1,000 seconds = 1 kiloseconds
minutes	min	1 minute = 60 seconds
hours	hr	1 hours = 60 minutes
days	d	1 day = 24 hours
weeks	wk	1 week = 7 days
fortnights	4tnite	1 fortnight = 2 weeks or 14 days
months	mo	1 month = 30.4167 days
years	yr or y	1 year = 365 days
decades	decade	1 decade = 10 years

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