3 astronomical units to kilometers = 448,793,612.10 km. Au To Km Converter. 1 astronomical unit, or … tricky thing. How many kilometers are in 1 astronomical unit? Electric car calculator, cost per mile and cost per km calculator, The Conversions and Calculations web site, lb/dm³ to kg/metric tbsp conversion table, conversion tables of units of measurements, conversion table of astronomical units to kilometers. From: To: = Most often used measurement conversion. Technical units conversion tool for length or distance measures. Trending Questions. An … lb/dm³ to kg/metric tbsp conversion table, lb/dm³ to kg/metric tbsp unit converter or convert between all units of density measurement. L km = 149 597 871 × L au. 1 astronomical unit to kilometers = 149,597,870.70 km. Join Yahoo Answers and get 100 points today. First unit: astronomical unit (au - ua) is used for measuring astronomy length. 1 AU to kilometers = 149597870.691 kilometers. 2 AU to kilometers = 299195741.382 kilometers. Note: Astronomical unit is an astronomical unit of length. The length converter from au - ua ( astronomical units ) measure to km ( kilometers ) equivalent. I've done my best to build this site for you- Please send feedback to let me know how you enjoyed visiting. Astronomical Unit Conversion. Kilometer is a metric unit of length. Or for your convenience download Google's Chrome browser for high quality internet browsing. 3 AU to kilometers = 448793612.073 kilometers. 0 0. Applies to physical lengths, depths, heights or simply farness. Get your answers by asking now. Convert length of astronomical unit (au - ua) and kilometers (km) units in reverse from kilometers into astronomical units.