How to Convert Nanoseconds to Seconds (ns to s)
Time conversions help with project planning, payroll hours and working out how long a loan or COE period really is. This guide shows how to convert nanoseconds into seconds by hand, with examples and a quick-reference table.
The conversion
To convert nanoseconds to seconds, multiply the value by 1.000000e-09. To go the other way, divide by the same number (or multiply by 999,999,999.9999998808). Because the factor is tiny, scientific notation keeps the numbers manageable.
Seconds = nanoseconds × 1.000000e-09
Worked examples
- 3 ns = 3.000000e-9 s
- 12.5 ns = 1.250000e-8 s
- 75 ns = 7.500000e-8 s
Nanoseconds to Seconds table
| Nanoseconds | Seconds |
|---|---|
| 1 ns | 1.000000e-9 s |
| 2 ns | 2.000000e-9 s |
| 5 ns | 5.000000e-9 s |
| 10 ns | 1.000000e-8 s |
| 20 ns | 2.000000e-8 s |
| 25 ns | 2.500000e-8 s |
| 50 ns | 5.000000e-8 s |
| 100 ns | 1.000000e-7 s |
| 250 ns | 2.500000e-7 s |
| 500 ns | 5.000000e-7 s |
| 1,000 ns | 1.000000e-6 s |
Common questions
Is ns to s exact?
The factors used here are the internationally defined values where they exist; results are rounded for display only.
How do I convert back?
Use the Seconds to Nanoseconds converter.
Mistakes to avoid
Forgetting squared and cubed units
Area and volume factors are the length factor squared or cubed, so 1 m² is about 10.76 sq ft, not 3.28.
Mixing similar-sounding units
US and imperial gallons, pints and tons are different sizes, and decimal kilobytes differ from binary kibibytes.
Multiplying when you should divide
Converting to a smaller unit gives a bigger number, and converting to a larger unit gives a smaller one. If your answer moves the wrong way, you have inverted the factor.
Background
Writing the units next to every number while you work is the simplest way to avoid mistakes. If the units do not cancel to leave the one you want, the calculation is set up wrongly.
A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.
Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.
For any value, use the Nanoseconds to Seconds Converter or browse all time converters.
Run your own numbers: Nanoseconds to Seconds Converter