All you have to do is multiply 6.3 by 10.
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To convert 6.3 cm to mm, you need to multiply by 10. Therefore, 6.3 cm is equal to 63 mm.
630 mm = 630/10 = 63 cm
6.3 cm is equal to 63 mm because there are 10 millimeters in a centimeter.
64 cm is greater than 630 mm which equals 63 cm
1 cm = 10 mm 2 cm = 20 mm . . 10 cm = 100 mm . . 15 cm = 150 mm
80 cm equals 800 mm.