Unit Name millimeter 1 unit = x millimeter
arpent [Canada] 0.0000171 58470
centimeter 0.1 10
feet [international, U.S.] 0.0032808 304.8
football field [U.S.] 0.0000109 91440
inch [international, U.S.] 0.0393701 25.4
kilometer 0.000001 1000000
li [modern China] 0.000002 500000
meter 0.001 1000
mile [survey, US] 0.0000006 1609347.2
millimeter 1 1
yard 0.0010936 914.4