Convert Nanometer to Angstrom (nm → Å)

The nanometer is used in semiconductor manufacturing, fiber optics, and visible-light wavelength specifications.

Nanometer

Angstrom

1 nm10 ÅNIST · BIPM accuracy

Nanometer to Angstrom Conversion Table

10 common values

Nanometer	Angstrom
1 nm	10 Å
5 nm	50 Å
10 nm	100 Å
25 nm	250 Å
50 nm	500 Å
100 nm	1,000 Å
250 nm	2,500 Å
500 nm	5,000 Å
1,000 nm	10,000 Å
5,000 nm	50,000 Å

How to Convert Nanometer to Angstrom Manually

Step by Step

Converting nanometers to angstroms is straightforward: multiply by the conversion factor. Follow these three steps to do it by hand or in your head.

1
Take your value in nanometers
Start with the number of nanometers (nm) you want to convert.
2
Multiply by 10
The conversion factor from nm to Å is 10. Multiply your value by this number.
3
Read the result in angstroms
The result is your value in angstroms (Å).

Practical Examples

1 nm

equals

10 Å

5 nm

equals

50 Å

10 nm

equals

100 Å

25 nm

equals

250 Å

100 nm

equals

1,000 Å

Formula

Multiply the value in nanometers by 10. For the reverse direction, multiply by 0.1.

ForwardÅ = nm × 10

Reversenm = Å × 0.1

Example: 10 nm × 10 = 100 Å

Tips

Use these in everyday conversions

1 nm = 10 Ångströms = 0.001 µm. Chemists often prefer Ångströms for bond lengths.
Chip "5 nm" is a marketing term — the actual feature size differs by manufacturer.
Red light is 700 nm; violet is 380 nm; UV is below 380 nm.

Common Mistakes

Avoid these

Assuming "3 nm" describes a single transistor width — it is a process-node name.
Confusing nm (length) with nM (nanomolar concentration).
Using nm for anything visible to the naked eye — switch to µm or mm.

About Nanometer and Angstrom

What is the Nanometer?

The nanometer equals one billionth of a meter (0.000000001 m or 10⁻⁹ m) and is the standard unit for atomic-scale measurements, semiconductor manufacturing, and optical wavelengths. Visible light spans roughly 380 to 750 nm in wavelength, with red around 700 nm and violet around 400 nm. Modern microchip transistors have reached feature sizes of 3–5 nm in cutting-edge processes (2024+). The nanometer is essential for fiber optics, laser technology, materials science, and nanotechnology research. A DNA double helix is about 2 nm wide. The unit's name combines the Greek 'nanos' (dwarf) with 'meter,' reflecting its tiny scale. The nanometer relates to the micrometer (1,000 nm = 1 µm) and the angstrom (10 Å = 1 nm). It became standardized as part of the SI system in 1960.

Semiconductor process nodes (3 nm, 5 nm, 7 nm chips)
Wavelengths of visible light and laser systems
Nanotechnology and molecular biology

Real-world examples

Visible light is 380–700 nm. Apple's A17 Pro chip uses a 3 nm process. The DNA double helix is 2 nm wide.

What is the Angstrom?

The angstrom equals exactly 0.1 nanometers or 10⁻¹⁰ meters and is the historical unit for atomic and molecular dimensions. Named after Swedish physicist Anders Jonas Ångström (1814–1874), who used it to chart the wavelengths of solar spectral lines, the unit was widely adopted in spectroscopy, crystallography, and chemistry. The diameter of a hydrogen atom is about 1 Å, and visible light wavelengths range from 4,000 to 7,000 Å. While the SI system officially recommends nanometers (10 Å = 1 nm), the angstrom remains common in older physics and chemistry literature, X-ray diffraction studies, and crystal structure data. The symbol Å uses a special character with a circle above the A. The angstrom is one of the few non-SI units still routinely used in scientific publications, particularly in solid-state physics.