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 1001 millimeters into inches we have to multiply 1001 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

1001 mm → L_(in)

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

L_(in) = 1001 mm × 0.039370078740157 in

L_(in) = 39.409448818898 in

The final result is:

1001 mm → 39.409448818898 in

We conclude that 1001 millimeters is equivalent to 39.409448818898 inches:

1001 millimeters = 39.409448818898 inches

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 inch is equal to 0.025374625374625 × 1001 millimeters.

Another way is saying that 1001 millimeters is equal to 1 ÷ 0.025374625374625 inches.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that one thousand one millimeters is approximately thirty-nine point four zero nine inches:

1001 mm ≅ 39.409 in

An alternative is also that one inch is approximately zero point zero two five times one thousand one 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