7 feet in decimeters

Conversion formula
How to convert 7 feet to decimeters?

We know (by definition) that: $1\mathrm{ft}=3.048\mathrm{dm}$

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

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

Conclusion: 7 ⁢ ft = 21.336 ⁢ dm

Conversion in the opposite direction

The inverse of the conversion factor is that 1 decimeter is equal to 0.0468691413573303 times 7 feet.

It can also be expressed as: 7 feet is equal to $\frac{1}{\mathrm{0.0468691413573303}}$ decimeters.

Approximation

An approximate numerical result would be: seven feet is about twenty-one point three three decimeters, or alternatively, a decimeter is about zero point zero five times seven feet.