
Here is how to convert 424 mm to inches. We will give you the fractional answer, the decimal answer, and illustrate the answer on our tape measure.
One millimeter is equal to 5/127 inches, and 424 as a fraction is 424/1. Therefore, to get the fractional answer to 424 mm in inches, we multiply 424/1 by 5/127 and simplify if necessary.
cm × 5/127 = inches
424/1 × 5/127 = inches
424/1 × 5/127 = 16 88/127
424/1 mm = 16 88/127 inches
424 mm = 16 88/127 inches
As promised above, we also have the answer to 424 mm in inches in decimal form. Although the fractional answer above is exact, the decimal answer may be rounded if necessary:
16 88/127 ≈ 16.6929133858268
16 88/127 ≈ 16.69291
424 mm ≈ 16.69291 inches
Our image below shows 424 mm on a tape measure. The top row of the tape measure is inches, and each mark on the bottom row is 1 millimeter (10 millimeter marks equal 1 centimeter).

As you can see, we drew a red line where 424 mm and 16.69291 inches meet on the measuring tape.
Millimeters to Inches Calculator
Here you can convert another length in millimeters to inches.
What is 424.1 mm in inches?
Here is another inches to millimeters calculation that we have done for you.