Light Year Astronomical Unit AngstromAstronomical UnitAttometerBarleycornCableChainCentimeterCubitDecimeterDigitDekameterEllEmFathomFootFurlongGigameterHandHectometerInchLeagueLight YearLineLinkKilometerMeterMegameterMileMilMicroinchMicrometerMillimeterNautical LeagueParsecPicometerNanometerNautical MilePalmPerchPetameterPicaPointPoleRodRopeScandinavian MileSpanTerameterThouYard AngstromAstronomical UnitAttometerBarleycornCableChainCentimeterCubitDecimeterDigitDekameterEllEmFathomFootFurlongGigameterHandHectometerInchLeagueLight YearLineLinkKilometerMeterMegameterMileMilMicroinchMicrometerMillimeterNautical LeagueParsecPicometerNanometerNautical MilePalmPerchPetameterPicaPointPoleRodRopeScandinavian MileSpanTerameterThouYard How many Astronomical Units in a Light Year? 1 Light Year equals to 62500 Astronomical Units Reserved Space