angstrom

angstrom

Non-SI unit

Name

Symbol

Quantity

Expressed in terms of SI base units

Expressed in terms of other SI units

angstrom,
ångström

Å

length

10⁻¹⁰ m

0.1 nm
100 pm

Definition

The angstrom, or ångström, symbol Å, is a non-SI unit of length.

The angstrom is not accepted for use with the SI.

One angstrom is equal to 10^-10 m or 0.1 nanometre.

The unit is named after the Swedish physicist Anders Jonas Ångström (1814 – 1874).