Convert nanometer to micrometer
Convert nanometer to micrometer instantly. 1 nm = 0.001 µm. Formula, worked examples and a quick reference table.
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One nanometer equals 0.001 micrometers. To convert any number of nanometers to micrometers, multiply by 0.001.
The converter above works in both directions and updates as you type. Below you will find the formula, a worked example and a reference table of common values.
Length conversions come up wherever a measurement crosses a border: a height given in feet and inches on a form that wants centimetres, a running distance recorded in kilometres and compared against miles, a component specified in millimetres and ordered from a supplier working in inches. The conversions themselves are exact — the inch, foot, yard and mile have all been defined in metric terms since 1959 — so any discrepancy comes from rounding, not from the units disagreeing.
nanometer to micrometer formula
To go the other way, use nanometer = micrometer ÷ 0.001.
About these units
The nanometre is a billionth of a metre — the scale of individual molecules and of visible light, whose wavelengths run from about 380 to 700 nm.
The micrometre, or micron, is a millionth of a metre. It is the scale of bacteria, fine dust and semiconductor features, and the unit particulate air-quality limits are quoted in.
Nanometer is also written nanometre, nanometres and nanometers. Micrometer is also written micrometre, micrometres, micrometers, micron, microns and um.
Sources
nanometer to micrometer conversion table
| Nanometer | Micrometer |
|---|---|
| 1 nm | 0.001 µm |
| 2 nm | 0.002 µm |
| 3 nm | 0.003 µm |
| 5 nm | 0.005 µm |
| 10 nm | 0.01 µm |
| 20 nm | 0.02 µm |
| 25 nm | 0.025 µm |
| 50 nm | 0.05 µm |
| 100 nm | 0.1 µm |
| 250 nm | 0.25 µm |
| 500 nm | 0.5 µm |
| 1,000 nm | 1 µm |
Frequently asked questions
How many micrometers are in a nanometer? +
There are 0.001 micrometers in one nanometer.
What is 10 nm in µm? +
10 nm equals 0.01 µm. Multiply 10 by 0.001.
How do I convert micrometer back to nanometer? +
Use nanometer = micrometer ÷ 0.001. The converter above handles both directions, or see our dedicated micrometer to nanometer page.
How accurate is this nanometer to micrometer conversion? +
The factor used is 0.001, carried at full double precision. Where a unit has an exact legal definition the factor is exact rather than approximate. Rounding is applied only to the displayed result, so the answer is never a calculation done on an already-rounded number.
Is there a quick way to estimate nm to µm in my head? +
Divide by 1,000. That matches the true factor of 0.001 exactly, so no adjustment is needed for a mental estimate.