ANSWER 1 inch = 25.4 millimeters for fast calculations you can use simple length converter http://www.ghostcalc.com/length-converter.html
There are 32 32nds of an inch in one inch.
There are one thousand thousandths of an inch in one inch.
One, if the unit is an inch!
There are 25.4 millimeters in one inch.
One inch equals one inch.
one inch = 2.54 centimeters
2.54 centimeters are in one inch.
Two of them
There are 8 one-eigths in 1 inch.
One inch is 25.4 millimeters.
1.25 tenths of an inch.
There are 2.54 centimeters in one inch.