Nanoseconds to Seconds Converter
Enter the time in nanoseconds below to convert it to seconds.
Convert Nanoseconds to Seconds
Enter a value in nanoseconds (ns) to convert to seconds (s).
Nanosecond to Second Conversion Table
Table showing various nanosecond measurements converted to seconds. Click any preset value or arrow to load it into the converter.
| Nanoseconds (ns) | Seconds (s) |
|---|---|
| 1 ns | 1e-9 s |
| 10 ns | 0.00000001 s |
| 100 ns | 0.0000001 s |
| 1,000 ns | 0.000001 s |
| 10,000 ns | 0.00001 s |
| 100,000 ns | 0.0001 s |
| 1,000,000 ns | 0.001 s |
| 5,000,000 ns | 0.005 s |
| 10,000,000 ns | 0.01 s |
| 25,400,000 ns | 0.0254 s |
How to Convert Nanoseconds to Seconds
To convert nanoseconds to seconds, multiply the time by the following conversion ratio: 1e-9 seconds/nanosecond.
Since one nanosecond is equal to 1e-9 seconds, you can use this simple formula to convert:
The time in seconds is equal to the time in nanoseconds multiplied by 1e-9.
For example, here's how to convert 5 nanoseconds to seconds using the formula above.
How Many Seconds Are in a Nanosecond?
There are 1e-9 seconds in a nanosecond, which is why we use this value in the formula above.
Our nanosecond to second calculator automatically converts your time measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Nanoseconds and seconds are both units used to measure time. Keep reading to learn more about each unit.
What Is a Nanosecond?
A nanosecond is a unit of time equal to 1/1,000,000,000 of a second (1e-9 s). One-billionth of a second (10⁻⁹ s), used in RAM and CPU clock cycles. [1]
The nanosecond is classified as a metric and SI-compatible unit of time. Nanoseconds can be abbreviated as ns; for example, 1 nanosecond can be written as 1 ns.
In the metric system, "nano" is the standard SI prefix for billionths, or 10⁻⁹. This makes the nanosecond (ns) a convenient decimal multiple of the second (s).
In practice, nanoseconds (ns) are widely used across fine-tolerance laboratory, analytical, and micro-scale time measurements within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Second?
Base SI unit of time. It serves as a primary reference unit for measuring time across scientific and practical applications. [2]
The second is classified as an International System of Units (SI) unit of time. Seconds can be abbreviated as s; for example, 1 second can be written as 1 s.
As the primary coherent reference unit for time in this category, all other time units are mathematically anchored to the second (s).
In practice, seconds (s) are widely used across standard time applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting time between nanoseconds (ns) and seconds (s), keep full floating-point precision (1 ns = 1e-9 s; 1 s = 999,999,999.9999999 ns) during intermediate calculations and round only the final second figure to match your instrument tolerance.
More Nanosecond & Second Conversions
Need to calculate in the opposite direction? Use our seconds to nanoseconds calculator to switch your starting unit immediately. You can also explore related tools such as converting seconds to nanoseconds, converting milliseconds to seconds, or converting days to seconds.
Convert from Nanoseconds
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Time)·Time Metrology Standard — Nanoseconds (ns) to Seconds (s)
- [2]BIPM SpecificationBIPM (SI Base Unit: Second (s))·Unit Specifications: Nanosecond (ns) & Second (s)
- [3]NIST CUU ReferenceNIST CUU (Non-SI Units Accepted for Use (min, h, d))·Conversion Factors & Mathematical Basis (ns to s)