## 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 13 decimeters into millimeters we have to multiply 13 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

13 dm → L(mm)

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

L(mm) = 13 dm × 100 mm

L(mm) = 1300 mm

The final result is:

13 dm → 1300 mm

We conclude that 13 decimeters is equivalent to 1300 millimeters:

13 decimeters = 1300 millimeters

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 millimeter is equal to 0.00076923076923077 × 13 decimeters.

Another way is saying that 13 decimeters is equal to 1 ÷ 0.00076923076923077 millimeters.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that thirteen decimeters is approximately one thousand three hundred millimeters:

13 dm ≅ 1300 mm

An alternative is also that one millimeter is approximately zero point zero zero one times thirteen 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)
14 decimeters 1400 millimeters
15 decimeters 1500 millimeters
16 decimeters 1600 millimeters
17 decimeters 1700 millimeters
18 decimeters 1800 millimeters
19 decimeters 1900 millimeters
20 decimeters 2000 millimeters
21 decimeters 2100 millimeters
22 decimeters 2200 millimeters
23 decimeters 2300 millimeters