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 80 millimeters into inches we have to multiply 80 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

80 mm → L_(in)

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

L_(in) = 80 mm × 0.039370078740157 in

L_(in) = 3.1496062992126 in

The final result is:

80 mm → 3.1496062992126 in

We conclude that 80 millimeters is equivalent to 3.1496062992126 inches:

80 millimeters = 3.1496062992126 inches

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 inch is equal to 0.3175 × 80 millimeters.

Another way is saying that 80 millimeters is equal to 1 ÷ 0.3175 inches.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that eighty millimeters is approximately three point one five inches:

80 mm ≅ 3.15 in

An alternative is also that one inch is approximately zero point three one eight times eighty 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