Nanometers to Meters Converter

Convert between nm and m, and see the value in micrometers, millimeters, and centimeters at the same time.

1 nm = 1×10⁻⁹ m

m = nm ÷ 1,000,000,000

Other useful units

Micrometers (µm)

0.5

Millimeters (mm)

0.0005

Centimeters (cm)

0.00005

Scientific (m)

5.00×10⁻⁷ m

Reverse: Meters → Nanometers

Enter very small length in m

nm = m × 1,000,000,000

Remember: nanometer scale is used in optics, photonics, semiconductors, biology (DNA ≈ 2 nm), and material science.

For very large or very small numbers, prefer scientific notation.

Quick nm → m table

Nanometers (nm) Meters (m) Notes
1 nm1×10⁻⁹ m1 billionth of a meter
10 nm1×10⁻⁸ mLarge molecule scale
100 nm1×10⁻⁷ mSmall virus range
500 nm5×10⁻⁷ mGreen light
1,000 nm1×10⁻⁶ m1 µm

How the conversion works

The meter is the SI base unit of length. The nanometer is one billionth of a meter:

1 nm = 1 × 10⁻⁹ m

So to go from nm to m, you divide by 10⁹.

Formulas

m = nm ÷ 1,000,000,000

nm = m × 1,000,000,000

FAQ

1. Why is this unit so small?

Nanometers are used to describe wavelengths of light, transistor sizes, and structures at the molecular level.

2. Can I convert nm to µm?

Yes — just divide nm by 1,000. We already show that in the panel above.

3. How do I write 0.0000005 m correctly?

Use scientific notation: 5 × 10⁻⁷ m — that’s easier to read.