Ångströms to Bohr radii
Type a value in Å to get it in a₀ instantly.
1.89a₀
That's 1.35× as long as the H–H bond, while a C–C single bond is 1.54× longer.
Convert the other way: a₀ to Å
What it means
How small is that?
Atoms have no sharp edge; radii depend on how they are measured (covalent, van der Waals, ionic).
The math
How to convert Å to a₀
To convert ångströms to Bohr radii, multiply by 1.88973.
Example: 1 Å × 1.88973 = 1.88973 a₀.
In the other direction, 1 a₀ = 0.529177 Å.
Every unit
That length in every unit
Tables
Å to a₀ conversion table
| Å | a₀ |
|---|---|
| 0.1 Å | 0.188973 a₀ |
| 0.5 Å | 0.944863 a₀ |
| 0.74 Å | 1.3984 a₀ |
| 1 Å | 1.88973 a₀ |
| 1.09 Å | 2.0598 a₀ |
| 1.2 Å | 2.26767 a₀ |
| 1.4 Å | 2.64562 a₀ |
| 1.54 Å | 2.91018 a₀ |
| 2 Å | 3.77945 a₀ |
| 2.5 Å | 4.72432 a₀ |
| 3 Å | 5.66918 a₀ |
| 3.5 Å | 6.61404 a₀ |
| 5 Å | 9.44863 a₀ |
| 10 Å | 18.8973 a₀ |
a₀ to Å conversion table
| a₀ | Å |
|---|---|
| 0.1 a₀ | 0.0529177 Å |
| 0.5 a₀ | 0.264589 Å |
| 0.74 a₀ | 0.391591 Å |
| 1 a₀ | 0.529177 Å |
| 1.09 a₀ | 0.576803 Å |
| 1.2 a₀ | 0.635013 Å |
| 1.4 a₀ | 0.740848 Å |
| 1.54 a₀ | 0.814933 Å |
| 2 a₀ | 1.05835 Å |
| 2.5 a₀ | 1.32294 Å |
| 3 a₀ | 1.58753 Å |
| 3.5 a₀ | 1.85212 Å |
| 5 a₀ | 2.64589 Å |
| 10 a₀ | 5.29177 Å |
Quick answers
Quick answers
- How many a₀ is 1 Å?
- 1 Å is 1.88973 a₀.
- How many a₀ is 10 Å?
- 10 Å is 18.8973 a₀.
The units
About these units
Ångströms (Å)
10⁻¹⁰ m: the size of an atom.
Bohr radii (a₀)
The atomic unit of length: 52.9 pm.
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