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Unit Converter

Conversion formula

The conversion factor from decimeters to centimeters is 10, which means that 1 decimeter is equal to 10 centimeters:

1 dm = 10 cm

To convert 21 decimeters into centimeters we have to multiply 21 by the conversion factor in order to get the length amount from decimeters to centimeters. We can also form a simple proportion to calculate the result:

1 dm → 10 cm

21 dm → L(cm)

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

L(cm) = 21 dm × 10 cm

L(cm) = 210 cm

The final result is:

21 dm → 210 cm

We conclude that 21 decimeters is equivalent to 210 centimeters:

21 decimeters = 210 centimeters

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 centimeter is equal to 0.0047619047619048 × 21 decimeters.

Another way is saying that 21 decimeters is equal to 1 ÷ 0.0047619047619048 centimeters.

Approximate result

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

21 dm ≅ 210 cm

An alternative is also that one centimeter is approximately zero point zero zero five times twenty-one decimeters.

Conversion table

decimeters to centimeters chart

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

decimeters (dm) centimeters (cm)
22 decimeters 220 centimeters
23 decimeters 230 centimeters
24 decimeters 240 centimeters
25 decimeters 250 centimeters
26 decimeters 260 centimeters
27 decimeters 270 centimeters
28 decimeters 280 centimeters
29 decimeters 290 centimeters
30 decimeters 300 centimeters
31 decimeters 310 centimeters