Millimetres and mm are the same unit of measure (mm is short for millimetres) therefore, 17 mm is equal to 17 millimetres.
17 mm = 1.7 cm
170 mm equals 17 cm
1000 mm equals one meter
6.3 centimeters equals 63 mm.
1.5 cm equals 15 mm.
1 km equals 100,000 mm
15 mm
6,800 mm
63 mm
84 mm ;-)
457.2 mm.
It equals 35 mm.