Convert angstroms to nanometers

1 Å=0.1nm

Use the converter below to change any angstroms value into nanometers instantly — with formula, conversion table, and real-world examples.

You have

Equals

0.1

Conversion formula

Forward

nanometers = angstroms × 0.1

Reverse

angstroms = nanometers × 10

Example: 10 Å × 0.1 = 1 nm.

About both units

From

Angstrom

The angstrom equals 10⁻¹⁰ meters or 0.1 nanometers. It is used in chemistry and crystallography for atomic and molecular dimensions. The Bohr radius — the characteristic size of a hydrogen atom — is 0.529 Å. Covalent bond lengths are typically 1–2 Å.

Real-world: A water molecule is about 1 Å across. The covalent bond in H₂ is 0.74 Å. X-ray wavelengths are 0.1–100 Å.

Read full angstrom reference →

Nanometer

The nanometer equals one billionth of a meter. Visible light spans 380–700 nm. Modern semiconductors are manufactured on 3–5 nm process nodes. Gold atom diameter is 0.29 nm. The nanometre is the natural scale for atomic physics and nano-engineering.

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

Read full nanometer reference →

Angstrom to Nanometer conversion table

Common angstroms to nanometers values for quick reference.

Angstrom (Å)	Nanometer (nm)
1 Å	0.1 nm
5 Å	0.5 nm
10 Å	1 nm
25 Å	2.5 nm
50 Å	5 nm
100 Å	10 nm
250 Å	25 nm
500 Å	50 nm
1,000 Å	100 nm
5,000 Å	500 nm

Tips & common mistakes

Quick tips

1 Å = 0.1 nm = 100 pm. Modern SI recommends nm or pm for new publications.
The ångström is named after the Swedish physicist Anders Jonas Ångström.
For quick atomic-scale intuition: most atoms are 1–3 Å across.

Avoid these

Mixing up Å with µm — the scale differs by 10,000×.
Using Å for anything macroscopic — always use nm or mm for things visible under a light microscope.
Forgetting the diacritic in "Ångström" — the symbol Å avoids spelling issues.

Frequently asked questions

How many nanometers in a angstrom?

One angstrom equals 0.1 nanometers.

How do I convert angstroms to nanometers?

Multiply the angstrom value by 0.1 to get the equivalent in nanometers.

What is 100 angstroms in nanometers?

100 angstroms equals 10 nanometers.

Is a angstrom bigger than a nanometer?

No. 1 angstrom equals 0.1 nanometers, so one angstrom is smaller.

How to convert angstroms to nanometers without a calculator?

Multiply by 0.1 for a quick estimate; use a calculator for precise results.

Related length conversions

📊 See full comparison matrix →

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