
Here is how to convert 842.4 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 842.4 as a fraction is 4212/5. Therefore, to get the fractional answer to 842.4 mm in inches, we multiply 4212/5 by 5/127 and simplify if necessary.
cm × 5/127 = inches
4212/5 × 5/127 = inches
4212/5 × 5/127 = 33 21/127
4212/5 mm = 33 21/127 inches
842.4 mm = 33 21/127 inches
As promised above, we also have the answer to 842.4 mm in inches in decimal form. Although the fractional answer above is exact, the decimal answer may be rounded if necessary:
33 21/127 ≈ 33.1653543307087
33 21/127 ≈ 33.16535
842.4 mm ≈ 33.16535 inches
Our image below shows 842.4 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 842.4 mm and 33.16535 inches meet on the measuring tape.
Millimeters to Inches Calculator
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What is 842.5 mm in inches?
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