## 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 720 decimeters into millimeters we have to multiply 720 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

720 dm → L(mm)

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

L(mm) = 720 dm × 100 mm

L(mm) = 72000 mm

The final result is:

720 dm → 72000 mm

We conclude that 720 decimeters is equivalent to 72000 millimeters:

720 decimeters = 72000 millimeters

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 millimeter is equal to 1.3888888888889E-5 × 720 decimeters.

Another way is saying that 720 decimeters is equal to 1 ÷ 1.3888888888889E-5 millimeters.

## Approximate result

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

720 dm ≅ 72000 mm

An alternative is also that one millimeter is approximately zero times seven hundred twenty 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

decimeters (dm) millimeters (mm)
721 decimeters 72100 millimeters
722 decimeters 72200 millimeters
723 decimeters 72300 millimeters
724 decimeters 72400 millimeters
725 decimeters 72500 millimeters
726 decimeters 72600 millimeters
727 decimeters 72700 millimeters
728 decimeters 72800 millimeters
729 decimeters 72900 millimeters
730 decimeters 73000 millimeters