Micrometer is 0.000001 meter units.
Micrometers to Nanometers Converter — um to nm
Convert Micrometer (um) to Nanometer (nm) using the exact conversion factor (1 micrometer = 1,000 nanometer). See the formula, worked examples, and conversion table.
Micrometers to Nanometers converter
Converter
Scientific Units Converter
Convert SI derived units, scientific notation-friendly units, atomic units, and lab measurements.
Context values
Some unit families need one extra value for a physically accurate result.
Nanometer is 1e-9 meter units.
Result = input x 1e-6 / 1e-9.
Length units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Micrometers to Nanometers
Micrometer and Nanometer are both scientific-measurement units, spanning everything from atomic and laboratory scales to astronomical distances — the kind of conversion that comes up constantly in physics, chemistry, and astronomy when a result needs to move between conventions used in different subfields. Specifically: Micrometer is 0.000001 meter units, and nanometer is 1e-9 meter units.
Formula
nanometers = micrometers × 1000
This factor comes from each unit's defined relationship to the category's base unit: 1 micrometer equals 0.000001 base units, and 1 nanometer equals 1e-9 base units, so dividing one by the other gives the direct micrometer-to-nanometer factor of 1000.
Simple example
1 um × 1000 = 1,000 nm
1 micrometer = 1,000 nanometers.
Real-world example
10 um × 1000 = 10,000 nm
10 micrometers = 10,000 nanometers.
Conversion table
| Micrometer (um) | Nanometer (nm) |
|---|---|
| 0.001 um | 1 nm |
| 0.01 um | 10 nm |
| 1 um | 1,000 nm |
| 10 um | 10,000 nm |
| 100 um | 100,000 nm |
| 1,000 um | 1,000,000 nm |
Reverse conversion: Nanometer to Micrometer
1 nm × 0.001 = 0.001 um
1 nanometer = 0.001 micrometers.
micrometers = nanometers × 0.001
For a page dedicated to this direction, see Nanometer to Micrometer.
Understanding the Micrometer (um)
Micrometer is 0.000001 meter units.
Understanding the Nanometer (nm)
Nanometer is 1e-9 meter units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many nanometers are in 1 micrometer?
1 micrometer equals 1,000 nanometers, using the exact defined conversion factor rather than an estimate.
How do I convert micrometer to nanometer?
Multiply the micrometer value by 1000. The converter above does this instantly to whatever precision you set.
How do I convert nanometer back to micrometer?
Use the reverse factor: 1 nanometer equals 0.001 micrometers. You can also use the swap control in the converter above to flip the direction instantly.
What is a micrometer?
Micrometer (um) is a unit of scientific units.
What is a nanometer?
Nanometer (nm) is a unit of scientific units.
Is the micrometer to nanometer conversion exact?
Yes. Both micrometer and nanometer are defined by fixed standards rather than physical artifacts, so the factor of 1000 used above is exact to as many digits as you choose to display.
Why does this category span everything from atomic to astronomical scales?
Scientific work spans an enormous range of physical scales, from atomic distances (measured in angstroms or atomic mass units) to interstellar distances (measured in astronomical units or parsecs), so this category groups SI-derived and scale-specific units that researchers commonly need to convert between within their field.