Enter the measurement in fractions of an inch and the conversion factor into the calculator to determine the measurement in millimeters.

Fraction To Mm Formula

The following formula is used to calculate the conversion from fractions to millimeters.

MM = F * 25.4

Variables:

  • MM is the measurement in millimeters
  • F is the measurement in fractions of an inch

To calculate the conversion from fractions to millimeters, multiply the measurement in fractions of an inch by 25.4 (since 1 inch is equal to 25.4 millimeters).

What is a Fraction To Mm?

Fraction to mm refers to the conversion of measurements from fractions of an inch to millimeters. This is often necessary in various fields such as engineering, construction, and manufacturing where precise measurements are crucial. The conversion is based on the fact that one inch is equivalent to 25.4 millimeters. Therefore, to convert a fraction of an inch to millimeters, the fraction is first converted to its decimal equivalent, then multiplied by 25.4.

How to Calculate Fraction To Mm?

The following steps outline how to calculate the Fraction to Millimeters conversion.


  1. First, determine the measurement in fractions of an inch (F).
  2. Next, use the formula MM = F * 25.4 to convert the measurement to millimeters.
  3. Finally, calculate the measurement in millimeters (MM).
  4. After inserting the value of F and calculating the result, check your answer with a calculator or conversion chart.

Example Problem:

Use the following variables as an example problem to test your knowledge.

Measurement in fractions of an inch (F) = 3/8