1.8 centimeters is 18 millimeters.
18cm is 180mm
1 cm = 10 mm18 cm = 180 mm
40 mm = 4 cm
18 cm = 180 mm
180 mm
680 mm
Convert to the same units and the difference can be found: 1 cm = 10 mm → 2 cm = 2 × 10 mm = 20 mm → 2 cm - 18 mm = 20mm - 18 mm = 2mm 2 cm is 2 mm longer than 18 mm Alternatively, as 10 mm = 1 cm, 2 mm = 2 ÷ 10 cm = 0.2 cm, it can be expressed as 2 cm is 0.2 cm longer than 18 mm.
There are 10 millimetres in 1 centimetre so 18 centimetres is equal to 18 x 10, which is 180 millimetres.
To convert from cm to mm, multiply by 10. 18 cm is equal to 180 mm
12.7mm
500mm
100 cm equals to 1000 mm
7 cm 8 mm - 6 cm = 1 cm 8 mm = 1.8 cm or 18 mm