Convert Angstroms to Inches
1 angstrom (Å) equals 3.937007874 × 10⁻⁹ inches (in).
1 Å = 3.937007874e-9 in
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk angstrom to inch converter to paste a column from Excel.
How to Convert Angstrom to Inch
- 1 Å = 3.937007874 × 10⁻⁹ in
- 1 in = 254000000 Å
- Example: convert 15 Å to in: 15 Å = 15 × 3.937007874 × 10⁻⁹ in = 5.905511811 × 10⁻⁸ in
Reference conditions. in: The international yard and pound agreement (1959) fixed 1 yard = 0.9144 m exactly, so the inch, foot and mile are exact.
Formula
in = Å ÷ 254000000
Derivation from SI units:
- 1 Å = 10⁻¹⁰ m = 0.1 nm
- 1 in = 2.54 cm = 0.0254 m (exact)
- 1 Å = 1 × 10⁻¹⁰ m ÷ 0.0254 m per in = 3.937007874016 × 10⁻⁹ in
Both units are defined exactly, so the factor is exact. Angstrom definition: angstrom; Inch definition: inch.
Worked examples
- A reading of 2 Å converts to 7.874015748 × 10⁻⁹ in.
2 Å × 3.937007874 × 10⁻⁹ = 7.874015748 × 10⁻⁹ in - A value of 50 Å is 1.968503937 × 10⁻⁷ in.
50 Å × 3.937007874 × 10⁻⁹ = 1.968503937 × 10⁻⁷ in
Angstrom to Inch conversion table
| Angstroms (Å) | Inches (in) |
|---|---|
| 0.5 Å | 1.968503937 × 10⁻⁹ in |
| 1 Å | 3.937007874 × 10⁻⁹ in |
| 1.5 Å | 5.905511811 × 10⁻⁹ in |
| 2 Å | 7.874015748 × 10⁻⁹ in |
| 3 Å | 1.181102362 × 10⁻⁸ in |
| 5 Å | 1.968503937 × 10⁻⁸ in |
| 10 Å | 3.937007874 × 10⁻⁸ in |
| 50 Å | 1.968503937 × 10⁻⁷ in |
| 100 Å | 3.937007874 × 10⁻⁷ in |
| 1000 Å | 0.000003937007874 in |
| 5000 Å | 0.00001968503937 in |
Where it's used
Angstroms are used for atomic radii and bond lengths (C–C ≈ 1.54 Å), while inches appear in screen and TV sizes (diagonal). Both measure length and distance, so the conversion is a fixed factor.
Angstrom to other length units
| Conversion | 1 Å equals |
|---|---|
| angstrom to meter | 1 × 10⁻¹⁰ m |
| angstrom to kilometer | 1 × 10⁻¹³ km |
| angstrom to centimeter | 1 × 10⁻⁸ cm |
| angstrom to millimeter | 1 × 10⁻⁷ mm |
| angstrom to micrometer | 0.0001 µm |
| angstrom to nanometer | 0.1 nm |
| angstrom to mile | 6.213711922 × 10⁻¹⁴ mi |
| angstrom to yard | 1.093613298 × 10⁻¹⁰ yd |
| angstrom to foot | 3.280839895 × 10⁻¹⁰ ft |
| angstrom to inch | 3.937007874 × 10⁻⁹ in |
| angstrom to mil | 0.000003937007874 mil |
| angstrom to nautical mile | 5.399568035 × 10⁻¹⁴ nmi |
Frequently asked questions
How many inches are in 1 angstrom?
1 Å = 3.937007874 × 10⁻⁹ in.
How do I convert angstroms to inches?
Multiply the value in Å by 3.937007874 × 10⁻⁹, or divide it by 254000000. For example, 15 Å × 3.937007874 × 10⁻⁹ = 5.905511811 × 10⁻⁸ in.
Is the Å to in conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
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)".
- 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, "inch (in)".
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). Convert Angstroms to Inches. Retrieved October 17, 2026, from https://scientificconverters.com/length/angstroms-to-inches/
IEEE
Scientific Converters, "Convert Angstroms to Inches," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/length/angstroms-to-inches/