Conversion formula

The conversion factor from decimeters to meters is 0.1, which means that 1 decimeter is equal to 0.1 meters:

1 dm = 0.1 m

To convert 640 decimeters into meters we have to multiply 640 by the conversion factor in order to get the length amount from decimeters to meters. We can also form a simple proportion to calculate the result:

1 dm → 0.1 m

640 dm → L_(m)

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

L_(m) = 640 dm × 0.1 m

L_(m) = 64 m

The final result is:

640 dm → 64 m

We conclude that 640 decimeters is equivalent to 64 meters:

640 decimeters = 64 meters

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 meter is equal to 0.015625 × 640 decimeters.

Another way is saying that 640 decimeters is equal to 1 ÷ 0.015625 meters.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that six hundred forty decimeters is approximately sixty-four meters:

640 dm ≅ 64 m

An alternative is also that one meter is approximately zero point zero one six times six hundred forty decimeters.

Conversion table

decimeters to meters chart

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