Here is how to convert 100.1 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 100.1 as a fraction is 1001/10. Therefore, to get the fractional answer to 100.1 mm in inches, we multiply 1001/10 by 5/127 and simplify if necessary.
cm × 5/127 = inches
1001/10 × 5/127 = inches
1001/10 × 5/127 = 3 239/254
1001/10 mm = 3 239/254 inches
100.1 mm = 3 239/254 inches
As promised above, we also have the answer to 100.1 mm in inches in decimal form. Although the fractional answer above is exact, the decimal answer may be rounded if necessary:
3 239/254 ≈ 3.94094488188976
3 239/254 ≈ 3.94094
100.1 mm ≈ 3.94094 inches
Our image below shows 100.1 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 100.1 mm and 3.94094 inches meet on the measuring tape.
Millimeters to Inches Calculator
Here you can convert another length in millimeters to inches.
What is 100.2 mm in inches?
Here is another inches to millimeters calculation that we have done for you.