1 million of 1 millimetres is a kilometre, but I am guessing that you mean a millionth of a millimetre by the way it's phrased. A millionth of a millimetre is a nanometre.
500
ONEMILLION
The metric unit for 1 millimeter is meters. 1 millimeter is equal to 0.001 meters.
1 million hours = 41,666 and 2/3 days. (about 114.1 years)
1 millimeter is larger than 0.1 (1/10th) millimeter.
Millimeter
onemillion dollars
ONEMILLION
1,000,077
1 meter = 1000 millimeter 1 millimeter = 0.001 meter
Precisely and unequivocally, 1.
1 millimeter is 1 millimeter. But, as 10 millimeters = 1 decimeter then we can state 1 millimeter = 0.1 decimeter.