21 feet in meters

Result

The conversion result is: 21 feet is equivalent to 6.4008 meters.[1]

Conversion formula
How to convert 21 feet to meters?

We know (by definition) that: 1 ft = 0.3048 m.

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

1 ft / 21 ft = 0.3048 m / x m

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

x m = (21 ft / 1 ft) * 0.3048 m → x m = 6.4008 m

Conclusion:

21 ft = 6.4008 m

Conversion in the opposite direction

The inverse of the conversion factor is that 1 meter is equal to 0.156230471191101 times 21 feet.

It can also be expressed as: 21 feet is equal to 1 / 0.156230471191101 meters.

Approximation

An approximate numerical result would be: twenty-one feet is about six point four zero meters, or alternatively, a meter is about zero point one six times twenty-one feet.

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.