Nanoseconds to Seconds Conversion

Enter the time in nanoseconds below to get the value converted to seconds.

Results in Seconds:
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1 ns = 1.0E-9 sec
Hint: use a scientific notation calculator to convert E notation to decimal

How to Convert Nanoseconds to Seconds

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To convert a nanosecond measurement to a second measurement, divide the time by the conversion ratio.

Since one second is equal to 1,000,000,000 nanoseconds, you can use this simple formula to convert:

seconds = nanoseconds ÷ 1,000,000,000

The time in seconds is equal to the nanoseconds divided by 1,000,000,000.

For example, here's how to convert 5,000,000,000 nanoseconds to seconds using the formula above.
5,000,000,000 ns = (5,000,000,000 ÷ 1,000,000,000) = 5 sec

Nanoseconds and seconds are both units used to measure time. Keep reading to learn more about each unit of measure.


The nanosecond is a multiple of the second, which is the SI base unit for time. In the metric system, "nano" is the prefix for 10-9. Nanoseconds can be abbreviated as ns; for example, 1 nanosecond can be written as 1 ns.


The second has historically been defined as 1/60 of a minute or 1/86,400 of a day. According the to SI definition, the second is the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the unperturbed ground state of the caesium 133 atom.[1]

The second is the SI base unit for time in the metric system. Seconds can be abbreviated as sec; for example, 1 second can be written as 1 sec.

Nanosecond to Second Conversion Table

Nanosecond measurements converted to seconds
Nanoseconds Seconds
1 ns 0.000000001 sec
2 ns 0.000000002 sec
3 ns 0.000000003 sec
4 ns 0.000000004 sec
5 ns 0.000000005 sec
6 ns 0.000000006 sec
7 ns 0.000000007 sec
8 ns 0.000000008 sec
9 ns 0.000000009 sec
10 ns 0.00000001 sec
100 ns 0.0000001 sec
1,000 ns 0.000001 sec
10,000 ns 0.00001 sec
100,000 ns 0.0001 sec
1,000,000 ns 0.001 sec
10,000,000 ns 0.01 sec
100,000,000 ns 0.1 sec
1,000,000,000 ns 1 sec


  1. International Bureau of Weights and Measures, The International System of Units, 9th Edition, 2019,