answersLogoWhite

0

There are 25.4 millimetres in one centimetre. Therefore, rounded to two decimal places, 21 millimetres is equal to 21/25.4 = 0.83 inches.

Direct Conversion Formula 21 mm*

1 in

25.4 mm

=

0.8267716535 in

User Avatar

Wiki User

12y ago

What else can I help you with?