Astronomical Units
- mi = mile
- km = kilometer
- a.u. = astronomical units
- l.y. = light years
- psc. = parsec
- mph = miles per hour
- mi/sec = miles per second
- km/h = kilometers per hour
- km/sec = kilometers per second
Comparisons:
- 1 mi = 1.6093 km = 1.076 x 10-8 a.u. = 1.701 v 10-13 l.y. = 0.522 x 10-13 psc.
- 1 km = 0.62137 mi = 0.669 x 10-8 a.u. = 1.057 x 10-13 l.y. =.0324 x 10-13 psc.
- 1 a.u. = 9.29 x 107 mi= 1.495 x 108 km = 0.158 x 10-5 psc = 0.485 x 10-8 psc
- 1 l.y. = 5.88 x 1012 mi = 9.460 x 1012 km = 63,280 a.u. = 0.3068 psc
- 1 psc. = 1.916 x 1013 mi = 3.084 x 1013 km = 206,265 a.u. = 3.260 l.y.
- Velocity of light = 6.70 x 108 mph = 186,000 mi/sec = 10.782 x108 km/h = 299,791 km/sec
