Full name: astronomical unit
Plural form: astronomical units
Category type: length
Scale factor: 149597870691
The SI base unit for length is the metre.
1 metre is equal to 6.6845871226706E-12 astronomical unit.
Valid units must be of the length type.
You can use this form to select from known units:
The astronomical unit (AU or au or a.u. or sometimes ua) is a unit of length. It is approximately equal to the mean distance between the Earth and Sun. The currently accepted value of the AU is 149 597 870 691 ± 30 metres (about 150 million kilometres or 93 million miles).
The symbol "ua" is recommended by the Bureau International des Poids et Mesures, but in the United States and other anglophone countries the reverse usage is more common. The International Astronomical Union recommends "au" and international standard ISO 31-1 uses "AU".
astronomical unit to roede
astronomical unit to river [Egypt]
astronomical unit to cape foot
astronomical unit to quadrant
astronomical unit to zeptometre
astronomical unit to handbreadth
astronomical unit to foot [pre-1963 Canada]
astronomical unit to pie [Italian]
astronomical unit to ri [Japan]
astronomical unit to mark twain