Conversion formula

The conversion factor from millimeters to inches is 0.039370078740157, which means that 1 millimeter is equal to 0.039370078740157 inches:

1 mm = 0.039370078740157 in

To convert 508 millimeters into inches we have to multiply 508 by the conversion factor in order to get the length amount from millimeters to inches. We can also form a simple proportion to calculate the result:

1 mm → 0.039370078740157 in

508 mm → L_(in)

Solve the above proportion to obtain the length L in inches:

L_(in) = 508 mm × 0.039370078740157 in

L_(in) = 20 in

The final result is:

508 mm → 20 in

We conclude that 508 millimeters is equivalent to 20 inches:

508 millimeters = 20 inches

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 inch is equal to 0.05 × 508 millimeters.

Another way is saying that 508 millimeters is equal to 1 ÷ 0.05 inches.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that five hundred eight millimeters is approximately twenty inches:

508 mm ≅ 20 in

An alternative is also that one inch is approximately zero point zero five times five hundred eight millimeters.

Conversion table

millimeters to inches chart

For quick reference purposes, below is the conversion table you can use to convert from millimeters to inches