Here is how to convert 315 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 315 as a fraction is 315/1. Therefore, to get the fractional answer to 315 mm in inches, we multiply 315/1 by 5/127 and simplify if necessary.
cm × 5/127 = inches
315/1 × 5/127 = inches
315/1 × 5/127 = 12 51/127
315/1 mm = 12 51/127 inches
315 mm = 12 51/127 inches
As promised above, we also have the answer to 315 mm in inches in decimal form. Although the fractional answer above is exact, the decimal answer may be rounded if necessary:
12 51/127 ≈ 12.4015748031496
12 51/127 ≈ 12.40157
315 mm ≈ 12.40157 inches
Our image below shows 315 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 315 mm and 12.40157 inches meet on the measuring tape.
Millimeters to Inches Calculator
Here you can convert another length in millimeters to inches.
What is 315.1 mm in inches?
Here is another inches to millimeters calculation that we have done for you.