Conversion formula

The conversion factor from decimeters to millimeters is 100, which means that 1 decimeter is equal to 100 millimeters:

1 dm = 100 mm

To convert 742 decimeters into millimeters we have to multiply 742 by the conversion factor in order to get the length amount from decimeters to millimeters. We can also form a simple proportion to calculate the result:

1 dm → 100 mm

742 dm → L_(mm)

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

L_(mm) = 742 dm × 100 mm

L_(mm) = 74200 mm

The final result is:

742 dm → 74200 mm

We conclude that 742 decimeters is equivalent to 74200 millimeters:

742 decimeters = 74200 millimeters

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 millimeter is equal to 1.3477088948787E-5 × 742 decimeters.

Another way is saying that 742 decimeters is equal to 1 ÷ 1.3477088948787E-5 millimeters.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that seven hundred forty-two decimeters is approximately seventy-four thousand two hundred millimeters:

742 dm ≅ 74200 mm

An alternative is also that one millimeter is approximately zero times seven hundred forty-two decimeters.

Conversion table

decimeters to millimeters chart

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