Conversion formula

The conversion factor from meters to decimeters is 10, which means that 1 meter is equal to 10 decimeters:

1 m = 10 dm

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

1 m → 10 dm

21 m → L_(dm)

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

L_(dm) = 21 m × 10 dm

L_(dm) = 210 dm

The final result is:

21 m → 210 dm

We conclude that 21 meters is equivalent to 210 decimeters:

21 meters = 210 decimeters

Alternative conversion

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

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

Approximate result

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

21 m ≅ 210 dm

An alternative is also that one decimeter is approximately zero point zero zero five times twenty-one meters.

Conversion table

meters to decimeters chart

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