Micrometers to Nanometers (µm to nm) Converter

How to convert micrometers to nanometers

Formulanm = µm × 1,000

Multiply the value in micrometers by 1,000. To go the other way, multiply by 0.001 (or divide by 1,000).

A micrometer is larger than a nanometer: one micrometer contains 1,000 nanometers.

Worked examples

1 micrometer1 µm × 1,000 = 1,000 nm
5 micrometers5 µm × 1,000 = 5,000 nm
10 micrometers10 µm × 1,000 = 10,000 nm
20 micrometers20 µm × 1,000 = 20,000 nm
100 micrometers100 µm × 1,000 = 100,000 nm

Micrometers to nanometers conversion table

Values are calculated by the conversion engine and rounded to 8 significant figures.

Micrometers to nanometers: 0.1–10 µm
Micrometers (µm)	Nanometers (nm)
0.1 µm	100 nm
0.25 µm	250 nm
0.5 µm	500 nm
1 µm	1,000 nm
2 µm	2,000 nm
3 µm	3,000 nm
4 µm	4,000 nm
5 µm	5,000 nm
6 µm	6,000 nm
7 µm	7,000 nm
8 µm	8,000 nm
9 µm	9,000 nm
10 µm	10,000 nm

Micrometers to nanometers: 12–1,000 µm
Micrometers (µm)	Nanometers (nm)
12 µm	12,000 nm
15 µm	15,000 nm
20 µm	20,000 nm
25 µm	25,000 nm
30 µm	30,000 nm
40 µm	40,000 nm
50 µm	50,000 nm
75 µm	75,000 nm
100 µm	100,000 nm
250 µm	250,000 nm
500 µm	500,000 nm
1,000 µm	1,000,000 nm

About the units

Micrometer (µm)

One millionth of a metre, often called a micron. Human hair is roughly 50–100 µm across, and filter and particle sizes are given in micrometres. One micrometer equals 0.000001 meters (m).

Nanometer (nm)

One billionth of a metre. Visible light wavelengths run from about 380 to 750 nm, and semiconductor process nodes are named in nanometres. One nanometer equals 1×10⁻⁹ meters (m).

Frequently asked questions

How many nanometers are in one micrometer?

There are 1,000 nanometers in one micrometer, and this value is exact by definition.

How do I convert micrometers to nanometers?

Multiply the number of micrometers by 1,000. For example, 10 µm × 1,000 = 10,000 nm.

How many micrometers are in one nanometer?

One nanometer equals 0.001 micrometers. That is the reverse factor, 1 ÷ 1,000.

What is 10 micrometers in nanometers?

10 µm = 10,000 nm.

Is this µm to nm converter accurate?

Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.

Micrometers to Nanometers Converter