
Here is how to convert 179.9 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 179.9 as a fraction is 1799/10. Therefore, to get the fractional answer to 179.9 mm in inches, we multiply 1799/10 by 5/127 and simplify if necessary.
cm × 5/127 = inches
1799/10 × 5/127 = inches
1799/10 × 5/127 = 7 21/254
1799/10 mm = 7 21/254 inches
179.9 mm = 7 21/254 inches
As promised above, we also have the answer to 179.9 mm in inches in decimal form. Although the fractional answer above is exact, the decimal answer may be rounded if necessary:
7 21/254 ≈ 7.08267716535433
7 21/254 ≈ 7.08268
179.9 mm ≈ 7.08268 inches
Our image below shows 179.9 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 179.9 mm and 7.08268 inches meet on the measuring tape.
Millimeters to Inches Calculator
Here you can convert another length in millimeters to inches.
What is 180 mm in inches?
Here is another inches to millimeters calculation that we have done for you.