21 decimeters in feet

Result

The conversion result is: 21 decimeters is equivalent to 6.88976377952756 feet.^[1]

Conversion formula
How to convert 21 decimeters to feet?

We know (by definition) that: 1 dm ≈ 0.32808399 ft.

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

1 dm / 21 dm ≈ 0.32808399 ft / x ft

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

x ft ≈ (21 dm / 1 dm) * 0.32808399 ft → x ft ≈ 6.88976379 ft

Conclusion:

21 dm ≈ 6.88976379 ft

Conversion in the opposite direction

The inverse of the conversion factor is that 1 foot is equal to 0.145142857142857 times 21 decimeters.

It can also be expressed as: 21 decimeters is equal to 1 / 0.145142857142857 feet.

Approximation

An approximate numerical result would be: twenty-one decimeters is about six point eight eight feet, or alternatively, a foot is about zero point one five times twenty-one decimeters.