Conversion formula

The conversion factor from centimeters to feet is 0.032808398950131, which means that 1 centimeter is equal to 0.032808398950131 feet:

1 cm = 0.032808398950131 ft

To convert 21 centimeters into feet we have to multiply 21 by the conversion factor in order to get the length amount from centimeters to feet. We can also form a simple proportion to calculate the result:

1 cm → 0.032808398950131 ft

21 cm → L_(ft)

Solve the above proportion to obtain the length L in feet:

L_(ft) = 21 cm × 0.032808398950131 ft

L_(ft) = 0.68897637795276 ft

The final result is:

21 cm → 0.68897637795276 ft

We conclude that 21 centimeters is equivalent to 0.68897637795276 feet:

21 centimeters = 0.68897637795276 feet

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 foot is equal to 1.4514285714286 × 21 centimeters.

Another way is saying that 21 centimeters is equal to 1 ÷ 1.4514285714286 feet.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that twenty-one centimeters is approximately zero point six eight nine feet:

21 cm ≅ 0.689 ft

An alternative is also that one foot is approximately one point four five one times twenty-one centimeters.

Conversion table

centimeters to feet chart

For quick reference purposes, below is the conversion table you can use to convert from centimeters to feet