Angstrom (Å)
The ångström (Å) is 10⁻¹⁰ m, or 0.1 nm, a convenient size for atoms and chemical bonds.
Symbol: Å (ASCII: A)
Quantity: length and distance
SI relation: 1 Å = 1 × 10⁻¹⁰ m (exact)
Derivation: 1 Å = 10⁻¹⁰ m = 0.1 nm
Exact: yes, by definition
Typical uses
- Atomic radii and bond lengths (C–C ≈ 1.54 Å)
- X-ray crystallography
- Thin-film thickness in older literature
Convert angstroms to other units
| Conversion | 1 Å equals | Reverse |
|---|---|---|
| angstrom to meter | 1 × 10⁻¹⁰ m | meter to angstrom |
| angstrom to kilometer | 1 × 10⁻¹³ km | kilometer to angstrom |
| angstrom to centimeter | 1 × 10⁻⁸ cm | centimeter to angstrom |
| angstrom to millimeter | 1 × 10⁻⁷ mm | millimeter to angstrom |
| angstrom to mile | 6.213711922 × 10⁻¹⁴ mi | mile to angstrom |
| angstrom to foot | 3.280839895 × 10⁻¹⁰ ft | foot to angstrom |
| angstrom to inch | 3.937007874 × 10⁻⁹ in | inch to angstrom |
| angstrom to micrometer | 0.0001 µm | micrometer to angstrom |
| angstrom to nanometer | 0.1 nm | nanometer to angstrom |
| angstrom to yard | 1.093613298 × 10⁻¹⁰ yd | yard to angstrom |
| angstrom to nautical mile | 5.399568035 × 10⁻¹⁴ nmi | nautical mile to angstrom |
| angstrom to mil | 0.000003937007874 mil | mil to angstrom |
Open the Length Converter to convert any value between all units.
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "ångström (Å)".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Angstrom (Å). Retrieved October 17, 2026, from https://scientificconverters.com/units/angstrom/
IEEE
Scientific Converters, "Angstrom (Å)," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/units/angstrom/