An angstrom is 1e-10 meters.
Angstroms to US survey feet Converter — A to ftUS
Convert Angstrom (A) to US survey foot (ftUS) using the exact conversion factor (1 angstrom = 3.280833e-10 us survey foot). See the formula, worked examples, conversion table, history, and common uses.
Angstroms to US survey feet converter
Converter
Length Converter
Convert SI, imperial, US customary, astronomical, scientific, and historical length units.
Context values
Some unit families need one extra value for a physically accurate result.
The US survey foot is 1200/3937 meters and is retained for legacy land records.
Result = input x 1e-10 / 0.3048006096.
Length uses the meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Angstroms to US survey feet
Angstrom and US survey foot both measure length. Angstrom is most often used for atomic and ionic radii in chemistry.
Formula
us survey feet = angstroms × 3.280833e-10
This factor comes from each unit's defined relationship to the category's base unit: 1 angstrom equals 1e-10 base units, and 1 us survey foot equals 0.304800609601 base units, so dividing one by the other gives the direct angstrom-to-us survey foot factor of 3.280833e-10.
Simple example
1 A × 3.280833e-10 = 3.280833e-10 ftUS
1 angstrom = 3.280833e-10 us survey feet.
Real-world example
10 A × 3.280833e-10 = 3.280833e-9 ftUS
10 angstroms = 3.280833e-9 us survey feet.
Conversion table
| Angstrom (A) | US survey foot (ftUS) |
|---|---|
| 1 A | 3.280833e-10 ftUS |
| 5 A | 1.640417e-9 ftUS |
| 10 A | 3.280833e-9 ftUS |
| 21.0975 A | 6.921738e-9 ftUS |
| 42.195 A | 1.384348e-8 ftUS |
| 100 A | 3.280833e-8 ftUS |
Reverse conversion: US survey foot to Angstrom
3.280833e-10 ftUS × 3048006096 = 0.9999998984 A
3.280833e-10 us survey feet = 0.9999998984 angstroms.
angstroms = us survey feet × 3048006096.01
For a page dedicated to this direction, see US survey foot to Angstrom.
Understanding the Angstrom
Angstrom (A) measures length. Equal to exactly 10⁻¹⁰ meters (0.1 nanometers) — a scale convenient for describing atomic radii, bond lengths, and crystal structures. It is classified as a non-SI unit, still common in chemistry and crystallography.
Where it's used: Widely used internationally in chemistry, crystallography, and atomic/molecular physics
Uses of the Angstrom today
- Atomic and ionic radii in chemistry
- Chemical bond-length measurements
- X-ray crystallography and wavelength measurements
History of the Angstrom
The angstrom is named after Anders Jonas Ångström (1814–1874), a Swedish physicist and one of the founders of spectroscopy, who used the unit in his 1868 atlas of the solar spectrum.
Historical origin. Angstrom was not the invention of a single named person; it developed through the process described above.
Understanding the US survey foot (ftUS)
The US survey foot is 1200/3937 meters and is retained for legacy land records.
Angstrom — sources
- NIST Guide to the SI, Appendix B — Lists the angstrom among non-SI units still in use with an exact SI equivalence.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many us survey feet are in 1 angstrom?
1 angstrom equals 3.280833e-10 us survey feet, using the exact defined conversion factor rather than an estimate.
How do I convert angstrom to us survey foot?
Multiply the angstrom value by 3.280833e-10. The converter above does this instantly to whatever precision you set.
How do I convert us survey foot back to angstrom?
Use the reverse factor: 1 us survey foot equals 3,048,006,096 angstroms. You can also use the swap control in the converter above to flip the direction instantly.
What is a angstrom?
Angstrom (A) measures length. Equal to exactly 10⁻¹⁰ meters (0.1 nanometers) — a scale convenient for describing atomic radii, bond lengths, and crystal structures. It is classified as a non-SI unit, still common in chemistry and crystallography.
What is a us survey foot?
US survey foot (ftUS) is a unit of length.
Is the angstrom to us survey foot conversion exact?
Yes. Equal to exactly 10⁻¹⁰ meters (0.1 nanometers) — a scale convenient for describing atomic radii, bond lengths, and crystal structures. That fixed definition is what the converter above uses, so any rounding you see is a display choice, not a limitation of the math.
Where is the angstrom still used today?
Widely used internationally in chemistry, crystallography, and atomic/molecular physics