# Convert hours to seconds

Enter the number of hours you want to convert to seconds in the text box below. The conversion to time in seconds will update as you type.

hours (h)
1 hours = 3,600 seconds

## Precise decimal and fraction answers

The conversion in seconds rounded to six significant decimal places is 1 h = 3,600.000000 s. The precise fraction answer is 3,600 0/1 s.

### Decimal Precision

Conversion from one to ten decimal places

• 1 h = 3,600.0 s
• 1 h = 3,600.00 s
• 1 h = 3,600.000 s
• 1 h = 3,600.0000 s
• 1 h = 3,600.00000 s
• 1 h = 3,600.000000 s
• 1 h = 3,600.0000000 s
• 1 h = 3,600.00000000 s
• 1 h = 3,600.000000000 s
• 1 h = 3,600.0000000000 s

## Answer in hours, minutes and seconds

1 h equals using hours, minutes and seconds.

## Hours to seconds conversion factor and formulas

Formula

The conversion factor between hours and seconds is 3,600. This represents the ratio of seconds per one hour. To calculate the value in seconds, we can either multiply by the conversion factor or divide by its inverse.

### Multiplication

To convert from hours to seconds, multiply hours by 3,600.
The formula is expressed as:
h × 3,600 = s

### Division

Alternatively we can divide by the inverse conversion factor to get the same result.
The inverse of 3,600 is 1/3,600 or 0. To convert from hours to seconds, divide hours by 0.
The formula is expressed as:
h ÷ 0 = s

## About this conversion

A conversion from hours to seconds are units within in the metric (SI) or SI compatible systems.

## About Hours

SI Unit

An hour is a unit of time measurement equivalent to sixty minutes or 1/24th of a day. The hour is not officially part of the SI system, however it is fully compatible with and commonly used when performing both metric and Imperial measurements.

## About Seconds

SI Unit

The second is a base measure of time in the SI and Imperial systems of measurement. Its definition is based on the frequency of a caesium-133 atom. The formal scientific definition is "the fixed numerical value of the caesium frequency ΔνCs, the unperturbed ground-state hyperfine transition frequency of the caesium-133 atom, to be 9 192 631 770 when expressed in the unit Hz, which is equal to s-1". In common terms a second is 1/60th of a minute or 1/86,400th of a day.

## Reverse this conversion

Convert from seconds to hours instead.

## 1 hours to other time units

### Metric

• 1 h = 0.042 d
• 1 h = 1 h
• 1 h = 60 min
• 1 h = 3,600 s
• 1 h = 3,600,000 ms
• 1 h = 3.6×109 µs
• 1 h = 3.6×1012 ns

## References and Citations

1. International Bureau of Weights and Measures (BIPM) The International System of Units (SI)

## Hours to seconds conversion table

h s
1 h 3,600 s
2 h 7,200 s
3 h 10,800 s
4 h 14,400 s
5 h 18,000 s
6 h 21,600 s
7 h 25,200 s
8 h 28,800 s
9 h 32,400 s
10 h 36,000 s
h s
20 h 72,000 s
30 h 108,000 s
40 h 144,000 s
50 h 180,000 s
60 h 216,000 s
70 h 252,000 s
80 h 288,000 s
90 h 324,000 s
100 h 360,000 s
1,000 h 3,600,000 s