the answer is 5
1 km equals 100,000 mm
8490 mm = 0.00849 km
45000 mm = 0.045 km
0.05km equals 50,000mm (km x 1,000,000 = mm)
its 823000000mm
It equals 35 mm.
500
1.6404
500 mm is equal to 50 cm.
500 micrometers = 0.5 millimeters
45000 mm is equal to 0.045 km. You can convert mm to km by dividing by 1,000 to move three decimal places to the left.
By unit of length and distance and conversion ,we can say that 1 km =1000000 mm 5.2 mm =0.0000052 km