How to convert atomic units of length to millimeters
1 a.u. of length is equal to 5.291772109 × 10⁻⁸ millimeters, and 1 millimeter is equal to 18,897,261.25 atomic units of length. To convert, multiply by the conversion factor:
millimeters = atomic units of length × 5.291772109 × 10⁻⁸
millimeters = atomic units of length ÷ 18,897,261.25Example: convert 1 a₀ to mm: 1 × 5.291772109 × 10⁻⁸ = 5.291772109 × 10⁻⁸ mm.
A.u. of Length to Millimeter conversion table
| A.u. of Length (a₀) | Millimeter (mm) |
|---|---|
| 0.01 a₀ | 5.291772109 × 10⁻¹⁰ mm |
| 0.1 a₀ | 5.291772109 × 10⁻⁹ mm |
| 1 a₀ | 5.291772109 × 10⁻⁸ mm |
| 2 a₀ | 1.058354422 × 10⁻⁷ mm |
| 3 a₀ | 1.587531633 × 10⁻⁷ mm |
| 5 a₀ | 2.645886055 × 10⁻⁷ mm |
| 10 a₀ | 5.291772109 × 10⁻⁷ mm |
| 20 a₀ | 0.000001058354422 mm |
| 50 a₀ | 0.000002645886055 mm |
| 100 a₀ | 0.000005291772109 mm |
| 250 a₀ | 0.00001322943027 mm |
| 500 a₀ | 0.00002645886055 mm |
| 1,000 a₀ | 0.00005291772109 mm |
About the a.u. of length
The atomic unit of length is the Bohr radius, about 5.29 × 10⁻¹¹ m: the most probable distance between the proton and electron in a hydrogen atom.
Symbol: a₀ · 1 a₀ = 5.291772109 × 10⁻¹¹ m · Category: Atomic & physics
About the millimeter
A millimeter is one thousandth of a meter. It's the standard unit in engineering drawings, manufacturing, rainfall and screen and paper sizes.
Symbol: mm · 1 mm = 0.001 m · Category: Metric (SI)