# 640 decimeters in meters

## Conversion

640 decimeters is equivalent to 64 meters.[1]

## Conversion formula How to convert 640 decimeters to meters?

We know (by definition) that: $1\mathrm{dm}=0.1\mathrm{m}$

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 $x$:

$x\mathrm{m}=\frac{640\mathrm{dm}}{1\mathrm{dm}}*0.1\mathrm{m}\to x\mathrm{m}=64.0\mathrm{m}$

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 $\frac{1}{\mathrm{0.015625}}$ 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.

## Footnotes

[1] The precision is 15 significant digits (fourteen digits to the right of the decimal point).

Results may contain small errors due to the use of floating point arithmetic.