Conversion formula

The conversion factor from millimeters to decimeters is 0.01, which means that 1 millimeter is equal to 0.01 decimeters:

1 mm = 0.01 dm

To convert 220 millimeters into decimeters we have to multiply 220 by the conversion factor in order to get the length amount from millimeters to decimeters. We can also form a simple proportion to calculate the result:

1 mm → 0.01 dm

220 mm → L_(dm)

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

L_(dm) = 220 mm × 0.01 dm

L_(dm) = 2.2 dm

The final result is:

220 mm → 2.2 dm

We conclude that 220 millimeters is equivalent to 2.2 decimeters:

220 millimeters = 2.2 decimeters

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 decimeter is equal to 0.45454545454545 × 220 millimeters.

Another way is saying that 220 millimeters is equal to 1 ÷ 0.45454545454545 decimeters.

Approximate result

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

220 mm ≅ 2.2 dm

An alternative is also that one decimeter is approximately zero point four five five times two hundred twenty millimeters.

Conversion table

millimeters to decimeters chart

For quick reference purposes, below is the conversion table you can use to convert from millimeters to decimeters