millimeter
Chat with our AI personalities
There are 10 millimeters (mm) in 1 centimeter (cm) and 100,000,000 mm in a kilometer (km). In other words, a cm is much smaller than a km.
No. 10.5 cm is in cm, not mm.
251 cm = 251 x 10 mm = 2,510 mm 561097 mm = 561097/1,000,000 km = 0.561097 km
1 km = 1000 m 1 m = 100 cm 1 cm = 10 mm
200 mm is smaller than 2 cm. (2 cm is 2000 mm)