1 centimetre = 10 millimetres. You now have all the information required to work out, for yourself, the answer to this and similar questions.
6.3cm = 63mm (there are 10 millimeters per centimeter).
6.3cm = 63mm (there are 10 millimeters per centimeter).
6.3cm = 63mm (there are 10 millimeters per centimeter).
2 and 1/2 inches
63mm * 38mm * 198mm = 474,012mm3 or 474.012 cm3 if you prefer.
63mm because there is 10 mm in 1 cm
2.48031 inches
100,000 centimeters per kilometer.
1 kilometer=100,000 centimeters
1 kilometer=100,000 centimeters
11.5 feet is 350.52 centimeters.
100 centimeters in 1 meter