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Unit Converter

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 1000 decimeters into millimeters we have to multiply 1000 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

1000 dm → L(mm)

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

L(mm) = 1000 dm × 100 mm

L(mm) = 100000 mm

The final result is:

1000 dm → 100000 mm

We conclude that 1000 decimeters is equivalent to 100000 millimeters:

1000 decimeters = 100000 millimeters

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 millimeter is equal to 1.0E-5 × 1000 decimeters.

Another way is saying that 1000 decimeters is equal to 1 ÷ 1.0E-5 millimeters.

Approximate result

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

1000 dm ≅ 100000 mm

An alternative is also that one millimeter is approximately zero times one thousand 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)
1001 decimeters 100100 millimeters
1002 decimeters 100200 millimeters
1003 decimeters 100300 millimeters
1004 decimeters 100400 millimeters
1005 decimeters 100500 millimeters
1006 decimeters 100600 millimeters
1007 decimeters 100700 millimeters
1008 decimeters 100800 millimeters
1009 decimeters 100900 millimeters
1010 decimeters 101000 millimeters