Convert Nanometers to Micrometers
1 nanometer is 0.001 µm. One nanometer is exactly 0.001 micrometers.
One nanometer is 0.001 micrometers. To convert nanometers to micrometers, multiply by 0.001; to go the other way, divide by 0.001 or multiply by 1000. The factor is exact rather than rounded: it follows from NIST. A billionth of a meter.
Factor checked against the defining standard · How we check
- Nanometers × 0.001
1 * 0.0010.001 µm
1 nanometer in every length unit
| Unit | Value | Exact factor |
|---|---|---|
| inches | 0.00000003937007874 in | × 0.0000000393700787402 |
| feet | 0.000000003280839895 ft | × 0.00000000328083989501 |
| yards | 0.000000001093613298 yd | × 0.00000000109361329834 |
| miles | 0 mi | × 0.000000000000621371192237 |
| millimeters | 0.000001 mm | × 0.000001 |
| decimetres | 0.00000001 dm | × 0.00000001 |
| centimeters | 0.0000001 cm | × 0.0000001 |
| meters | 0.000000001 m | × 0.000000001 |
| kilometers | 0.000000000001 km | × 0.000000000001 |
| nautical miles | 0 nmi | × 0.000000000000539956803456 |
| micrometers | 0.001 µm | × 0.001 |
| nanometers (as entered) | 1 nm | — |
| thou | 0.00003937007874 thou | × 0.0000393700787402 |
Factors are entered by hand from NIST rather than derived from a units library, so the ones that terminate are exact rather than rounded.
The same converter answers this pair however it is written: nanometres to micrometres is the British spelling of the same units — the metre and the litre are spelled that way outside the United States and the quantity does not change.
How do you convert nanometers to micrometers? The converter and the working
- 1.Take the measurement in nanometers.
- 2.Multiply by 0.001 — that is how many micrometers fit in one nanometer.
- 3.To go back the other way, divide by 0.001, or multiply by 1000.
Worked example: 25 nanometers to micrometers
- Formula
- nm × 0.001 = µm
- Arithmetic
- 25 × 0.001 = 0.03 µm
- Answer
- 25 nm = 0.03 µm
The factor is exact, so this figure is exact too — only the display is rounded.
Nanometers to micrometers conversion table
| Nanometers | Micrometers |
|---|---|
| 1 nm | 0.001 µm |
| 2 nm | 0.002 µm |
| 3 nm | 0.003 µm |
| 4 nm | 0.004 µm |
| 5 nm | 0.01 µm |
| 6 nm | 0.01 µm |
| 7 nm | 0.01 µm |
| 8 nm | 0.01 µm |
| 9 nm | 0.01 µm |
| 10 nm | 0.01 µm |
| 12 nm | 0.01 µm |
| 15 nm | 0.02 µm |
| 20 nm | 0.02 µm |
| 25 nm | 0.03 µm |
| 50 nm | 0.05 µm |
| 100 nm | 0.1 µm |
| 200 nm | 0.2 µm |
| 300 nm | 0.3 µm |
| 500 nm | 0.5 µm |
| 1000 nm | 1 µm |
| 2000 nm | 2 µm |
| 5000 nm | 5 µm |
| 10000 nm | 10 µm |
What is a nanometer?
A billionth of a meter. Visible light runs from about 380 to 750 nm, and a semiconductor process node is named after one even though it stopped describing a physical dimension years ago.
What is a micrometer?
A millionth of a meter, still widely called a micron. Machining tolerances, filter ratings and cell diameters are all quoted here.
How many micrometers are in a nanometer?
One nanometer is 0.001 micrometers, exactly. Going the other way, one micrometer is 1000 nanometers. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every length unit here
The whole group — 13 units with their symbols and the size of each one in meters — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a nanometer.
Source: NIST — international yard and pound agreement (inch = 25.4 mm exactly)
Cite this page
- APA
- Rule Calculator. (2026). Convert Nanometers to micrometers. Rule Calculator. https://rulecalculators.com/convert/nanometer-to-micrometer
- MLA
- "Convert Nanometers to micrometers." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/nanometer-to-micrometer.
- Chicago
- Rule Calculator. "Convert Nanometers to micrometers." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/nanometer-to-micrometer.
The date is when the figures on this page were last checked against their source, not the day you opened it. Add your own access date if your style needs one.
Questions people actually ask
- How many micrometers are in a nanometer?
- 0.001. A millionth of a meter, still widely called a micron. Machining tolerances, filter ratings and cell diameters are all quoted here.
- How do I convert micrometers back to nanometers?
- Divide by 0.001, or multiply by 1000 — they are the same operation.
Other length conversions
Micrometers to nanometers — the same conversion the other way.