1 km equals 100,000 mm
8490 mm = 0.00849 km
0.045 km
1 km = 1000 metres, 1 metre = 1000 millimetres so 1 km = 106 mm So 275 km = 275*106 = 2.75*108 mm
120,000,000 mm = 120km
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 micrometers = 0.5 millimeters