Convert Millimeters (mm) to Decimeters (dm)

Please provide the values below to convert from Millimeter (mm) to Decimeters (dm) and vice versa.

What is a Millimeter?

The Millimetre (international spelling; SI unit symbol mm) or millimeter (American spelling) is a unit of length in the metric system, equal to one-thousandth of a meter, which is the SI base unit of length. Therefore, there are one thousand millimeters in a meter and ten millimeters in a centimeter.

What is a Decimeter?

The Decimetre (SI symbol dm) or decimeter (American spelling) is a unit of length in the metric system, equal to one-tenth of a meter. The term “Deci” means one-tenth, and therefore decimetre means one-tenth of a meter.

Since a meter is made up of 100 cm, one-tenth of 100 cm is 10 cm. Thus one decimeter measures 10 cm or 3.937 inches

How to Convert Millimeter to Decimeters?

To convert Millimeter to Decimeters, simply divide the Millimeter value by 100.

The formula used to calculate Millimeter to Decimeters -

d(mm) = d(dm) / 100

The distance d in Decimeters (dm) is equal to the distance d in Millimeters (mm) divided by 100.

How many Decimeters in a Millimeter

In simple terms, 1 mm is equal to 0.01 dm.

The formula used is 1/100 = 0.01(dm)

How many Millimeters in a Decimeter

1 Decimeter is equal to 100 Millimeters. So we can also say that there are 100 Millimeters in a Decimeter.

Millimeter to Decimeters Conversion Table

Millimeter (mm)Decimeter (dm)
0.01 (mm)
0.02 (mm)
0.03 (mm)
0.04 (mm)
0.05 (mm)
1 (mm)
2 (mm)
3 (mm)
4 (mm)
5 (mm)
6 (mm)
7 (mm)
8 (mm)
9 (mm)
10 (mm)
20 (mm)
30 (mm)
40 (mm)
50 (mm)
60 (mm)
70 (mm)
80 (mm)
90 (mm)
100 (mm)
200 (mm)
300 (mm)
400 (mm)
500 (mm)
600 (mm)
700 (mm)
800 (mm)
900 (mm)
1000 (mm)
5000 (mm)
10000 (mm)