How many ns in 1 s?
The answer is 1000000000.
We assume you are converting between nanosecond and second.
You can view more details on each measurement unit: ns or
s
The SI base unit for time is the second.
1 ns is equal to 1.0E-9 second.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between nanoseconds and seconds.
Type in your own numbers in the form to convert the units!

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You can do the reverse unit conversion from
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The SI prefix "nano" represents a factor of
10^{-9}, or in exponential notation, 1E-9.

So 1 nanosecond = 10^{-9} arcseconds.

The definition of a second is as follows:

A second of arc or arcsecond is a unit of angular measurement which comprises one-sixtieth of an arcminute, or 1/3600 of a degree of arc or 1/1296000 (approximately 7.7×10-7) of a circle. It is the angular diameter of an object of 1 unit diameter at a distance of 360×60×60/(2pi) (approximately 206,265 units), such as (approximately) 1 cm at 2.1 km, or, directly from the definition, 1 astronomical unit at 1 parsec.

››Definition: Second

The second (symbol s) is a unit for time, and one of seven SI base units. It is defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom at zero kelvins.

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