## Unit Converter

## Convert 474 Nanoseconds to Seconds

To calculate 474 Nanoseconds to the corresponding value in Seconds, multiply the quantity in Nanoseconds by 1.0E-9 (conversion factor). In this case we should multiply 474 Nanoseconds by 1.0E-9 to get the equivalent result in Seconds:

474 Nanoseconds x 1.0E-9 = 4.74E-7 Seconds

**474 Nanoseconds is equivalent to 4.74E-7 Seconds.**

## How to convert from Nanoseconds to Seconds

The conversion factor from Nanoseconds to Seconds is 1.0E-9. To find out how many Nanoseconds in Seconds, multiply by the conversion factor or use the Time converter above. Four hundred seventy-four Nanoseconds is equivalent to zero point zero zero zero zero zero zero four seven four Seconds.

## Definition of Nanosecond

A nanosecond (symbol: ns) is an SI unit of time equal to one billionth of a second (10−9 or 1/1,000,000,000 s). One nanosecond is to one second as one second is to 31.71 years. The word nanosecond is formed by the prefix nano and the unit second. A nanosecond is equal to 1000 picoseconds or 1⁄1000 microsecond. Because the next SI unit is 1000 times larger, times of 10−8 and 10−7 seconds are typically expressed as tens or hundreds of nanoseconds. Times of this magnitude are commonly encountered in telecommunications, pulsed lasers and some areas of electronics.

## Definition of Second

The second (symbol: s) (abbreviated s or sec) is the base unit of time in the International System of Units (SI). It is qualitatively defined as the second division of the hour by sixty, the first division by sixty being the minute. The SI definition of second is "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". Seconds may be measured using a mechanical, electrical or an atomic clock. SI prefixes are combined with the word second to denote subdivisions of the second, e.g., the millisecond (one thousandth of a second), the microsecond (one millionth of a second), and the nanosecond (one billionth of a second). Though SI prefixes may also be used to form multiples of the second such as kilosecond (one thousand seconds), such units are rarely used in practice. The more common larger non-SI units of time are not formed by powers of ten; instead, the second is multiplied by 60 to form a minute, which is multiplied by 60 to form an hour, which is multiplied by 24 to form a day. The second is also the base unit of time in other systems of measurement: the centimetre–gram–second, metre–kilogram–second, metre–tonne–second, and foot–pound–second systems of units.

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