first Bohr radius
| Symbol: | a0, b, a.u. |
| Category: | Length |
| SI Equivalent: | 5.29177×10-11 m |
| Dimension: | L |
| System: | a.u. |
| Notes | |
| Physical fundamental constant named after Niels Bohr (1885-1962). This is a base unit of a.u. system. | |
95 conversions, showing those commonly used | Show all
1 a0, b, a.u. =
| Length | ||
| Symbol | Unit Name | |
| 0.529177 | Å | angstrom |
| 3.53733×10-22 | AU, UA | astronomical unit |
| 5.29177×107 | am | attometer |
| 5.29177×10-9 | cm | centimeter |
| 1.73615×10-10 | ft | foot |
| 5.29177×10-13 | hm | hectometer |
| 2.08338×10-9 | in | inch |
| 5.29177×10-14 | km | kilometer |
| 5.59353×10-27 | ly | light-year |
| 5.29177×10-11 | m | meter |
| 2.08338×10-3 | µin | microinch |
| 5.29177×10-5 | µm | micron |
| 2.08337×10-6 | mil, thou | mil (thou) |
| 3.28816×10-14 | mi (stat.) | mile (statute, land) |
| 5.29177×10-8 | mm | millimeter |
| 5.29177×10-2 | nm | nanometer |
| 2.85733×10-14 | mi (int. naut.) | nautical mile (international) |
| 1.71495×10-27 | pc | parsec |
| 52.9177 | pm | picometer |
| 5.78715×10-11 | yd | yard |
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