Hours to Seconds Converter

Need to convert hours into seconds? This quick guide shows you how to make that conversion easily. Whether you’re timing an event or doing precise scientific calculations, converting hours to seconds is essential in many fields.

What Is an Hour?

An hour is a standard unit of time, commonly used to measure durations in daily life. One hour equals 60 minutes, and each minute contains 60 seconds. Therefore, one hour is made up of 3,600 seconds.

What Is a Second?

A second (symbol: s) is the base unit of time in the International System of Units (SI). It is defined as the duration of 9,192,631,770 cycles of radiation corresponding to the transition between two energy states of the cesium-133 atom. Seconds are the smallest commonly used unit for measuring short durations.

Hours to Seconds Conversion Formula

To convert hours to seconds, multiply the number of hours by 3600.

1 hour = 3600 seconds
Formula: seconds = hours × 3600

To convert seconds back into hours:

1 second = 0.000277778 hours
Formula: hours = seconds ÷ 3600

Example: Convert 13 Hours to Seconds

13 hours × 3600 = 46800 seconds
So, 13 hours is equal to 46,800 seconds.

Hours to Seconds Conversion Table

Hours	Seconds
0.01 hr	36 s
0.1 hr	360 s
1 hr	3600 s
2 hr	7200 s
3 hr	10800 s
5 hr	18000 s
10 hr	36000 s
12 hr	43200 s
14 hr	50400 s
24 hr	86400 s
100 hr	360000 s

When to Use Hours vs Seconds

Use hours for longer durations like meetings, work shifts, or travel time. Use seconds when measuring short, precise time intervals such as stopwatch readings, athletic timing, or physics experiments.

Read more guideline here:

• NIST – The International System of Units (Time)

Related Tools

• Minutes to Milliseconds