Microsecond to Nanosecond Converter
Time · unit-converter
Convert Microsecond to Nanosecond with a fixed input and output unit, step-by-step formula line, and reference tables. Year = 365 days and month = 30 days in this tool for consistent factors; calendar months and leap years differ in real life.
Calculator
From: Microsecond (us)
To: Nanosecond (ns)
About Microsecond
One microsecond is one millionth of a second. Electronics and high-speed measurements use microseconds.
About Nanosecond
One nanosecond is one billionth of a second. CPU timings and optics may reference nanoseconds.
How to convert microseconds to nanoseconds
1 microsecond is equal to 999.99999999999989 nanosecond:
1 us = (0.000001 s ÷ 1e-9 s) ns = 999.99999999999989 ns
Each microsecond is defined as 0.000001 s and each nanosecond as 1e-9 s, so one us equals 0.000001 ÷ 1e-9 ns = 999.99999999999989 ns.
Let t(us) be the numeric value of the same duration measured in Microsecond (us), and t(ns) the value in Nanosecond (ns). Then:
t(ns) = t(us) × (0.000001 / 1e-9)
Equivalently, divide by how many us fit into one ns (seconds per ns divided by seconds per us):
t(ns) = t(us) ÷ 0.001
Or: nanosecond = microsecond ÷ 0.001
Examples
Example #1: Convert 20 us to nanosecond
20 us = 20 us × (0.000001/1e-9) ns = 20000 ns
20 us = 20 us ÷ 0.001 = 20000 ns
Example #2: Convert 50 us to nanosecond
50 us = 50 us × (0.000001/1e-9) ns = 50000 ns
50 us = 50 us ÷ 0.001 = 50000 ns
Summary
To convert Microsecond to Nanosecond, multiply the value in us by the ratio of seconds per us divided by seconds per ns. Equivalently: value_ns = value_us × (0.000001 / 1e-9). Numerically, 1 us equals 999.9999999999999 ns.
Relationship context
Both units fall in subsecond precision (milliseconds and smaller). Conversions use fixed second counts per unit, so factors stay consistent for estimation and UI math. The factor from Microsecond to Nanosecond is 1.000000e+3 (1 us = 999.9999999999999 ns).
Conversion tables
| Microsecond (us) | Nanosecond (ns) |
|---|---|
| 0.1 | 100 |
| 1 | 1,000 |
| 2 | 2,000 |
| 3 | 3,000 |
| 4 | 4,000 |
| 5 | 5,000 |
| 6 | 6,000 |
| 7 | 7,000 |
| 8 | 8,000 |
| 9 | 9,000 |
| Microsecond (us) | Nanosecond (ns) |
|---|---|
| 10 | 10,000 |
| 20 | 20,000 |
| 30 | 30,000 |
| 40 | 40,000 |
| 50 | 50,000 |
| 60 | 60,000 |
| 70 | 70,000 |
| 80 | 80,000 |
| 90 | 90,000 |
| 100 | 100,000 |