About the Units
mil (0.001 in)
A tiny imperial length unit used in manufacturing and electronics.
atomic unit of length (a.u. of length)
A reference unit of length used in quantum mechanics and atomic physics.
Common Conversions
- 1 0.001 in = 479990.44 a.u. of length
- 0.0000020833747 0.001 in = 1 a.u. of length