640 decimeters in meters

Result

The conversion result is: 640 decimeters is equivalent to 64 meters.^[1]

Conversion formula
How to convert 640 decimeters to meters?

We know (by definition) that: 1 dm = 0.1 m.

We can set up a proportion to solve for the number of meters.

1 dm / 640 dm = 0.1 m / x m

Now, we cross multiply to solve for our unknown x:

x m = (640 dm / 1 dm) * 0.1 m → x m = 64.0 m

Conclusion:

640 dm = 64.0 m

Conversion in the opposite direction

The inverse of the conversion factor is that 1 meter is equal to 0.015625 times 640 decimeters.

It can also be expressed as: 640 decimeters is equal to 1 / 0.015625 meters.

Approximation

An approximate numerical result would be: six hundred and forty decimeters is about zero meters, or alternatively, a meter is about zero point zero two times six hundred and forty decimeters.