Milimeters (mm) to Decimeters (dm) calculator

Input the amount of milimeters you want to convert to decimeters in the below input field, and then click in the "Convert" button. But if you want to convert from decimeters to milimeters, please checkout this tool.


Formula used to convert mm to dm:

F(x) = x / 100

For example, if you want to convert 15 mm to dm, just replace x by 15 [mm]:

15 mm = 15/100 = 0.15 dm


  1. Divide the amount of milimeters by 100.
  2. The result will be expressed in decimeters.

Milimeter to Decimeter Conversion Table

The following table will show the most common conversions for Milimeters (mm) to Decimeters (dm):

Milimeters (mm) Decimeters (dm)
0.001 mm 0.00001 dm
0.01 mm 0.0001 dm
0.1 mm 0.001 dm
1 mm 0.01 dm
2 mm 0.02 dm
3 mm 0.03 dm
4 mm 0.04 dm
5 mm 0.05 dm
6 mm 0.06 dm
7 mm 0.07 dm
8 mm 0.08 dm
9 mm 0.09 dm
10 mm 0.1 dm
20 mm 0.2 dm
30 mm 0.3 dm
40 mm 0.4 dm
50 mm 0.5 dm
60 mm 0.6 dm
70 mm 0.7 dm
80 mm 0.8 dm
90 mm 0.9 dm
100 mm 1 dm

About Milimeters (mm)

The millimetre (also spelled as millimeter in the United States), is a unit of length in the metric system equal to one thousandth of a metre. Therefore, there are one thousand millimetres in a metre.

About Decimeters (dm)

The decimeter is a unit of length in the metric system (SI), equal to one tenth of a metre (i.e. 1 dm is equal to 0.1 meters).

See also

FAQs for Milimeter to Decimeter calculator

What is Milimeter to Decimeter calculator?

Milimeter to Decimeter is a free and online calculator that converts Milimeters to Decimeters.

How do I use Milimeter to Decimeter?

You just have to insert the amount of Milimeters you want to convert and press the "Convert" button. The amount of Decimeters will be outputed in the input field below the button.

Which browsers are supported?

All mayor web browsers are supported, including Internet Explorer, Microsoft Edge, Firefox, Chrome, Safari and Opera.

Which devices does Milimeter to Decimeter work on?

Milimeter to Decimeter calculator works in any device that supports any of the browsers mentioned before. It can be a smartphone, desktop computer, notebook, tablet, etc.