How to convert atomic units of length to X-units
1 a.u. of length is equal to 528.078807 X-units, and 1 x-unit is equal to 0.001893656755 atomic units of length. To convert, multiply by the conversion factor:
X-units = atomic units of length × 528.078807
X-units = atomic units of length ÷ 0.001893656755Example: convert 15 a₀ to xu: 15 × 528.078807 = 7,921.182105 xu.
A.u. of Length to X-unit conversion table
| A.u. of Length (a₀) | X-unit (xu) |
|---|---|
| 0.01 a₀ | 5.28078807 xu |
| 0.1 a₀ | 52.8078807 xu |
| 1 a₀ | 528.078807 xu |
| 2 a₀ | 1,056.157614 xu |
| 3 a₀ | 1,584.236421 xu |
| 5 a₀ | 2,640.394035 xu |
| 10 a₀ | 5,280.78807 xu |
| 20 a₀ | 10,561.57614 xu |
| 50 a₀ | 26,403.94035 xu |
| 100 a₀ | 52,807.8807 xu |
| 250 a₀ | 132,019.7017 xu |
| 500 a₀ | 264,039.4035 xu |
| 1,000 a₀ | 528,078.807 xu |
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 x-unit
The X-unit (about 1.002 × 10⁻¹³ m) was used to express X-ray and gamma-ray wavelengths before the ångström and picometer became standard.
Symbol: xu · 1 xu = 1.00208 × 10⁻¹³ m · Category: Atomic & physics