Conversion formula

The conversion factor from millimeters to feet is 0.0032808398950131, which means that 1 millimeter is equal to 0.0032808398950131 feet:

1 mm = 0.0032808398950131 ft

To convert 421 millimeters into feet we have to multiply 421 by the conversion factor in order to get the length amount from millimeters to feet. We can also form a simple proportion to calculate the result:

1 mm → 0.0032808398950131 ft

421 mm → L_(ft)

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

L_(ft) = 421 mm × 0.0032808398950131 ft

L_(ft) = 1.3812335958005 ft

The final result is:

421 mm → 1.3812335958005 ft

We conclude that 421 millimeters is equivalent to 1.3812335958005 feet:

421 millimeters = 1.3812335958005 feet

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 foot is equal to 0.72399049881235 × 421 millimeters.

Another way is saying that 421 millimeters is equal to 1 ÷ 0.72399049881235 feet.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that four hundred twenty-one millimeters is approximately one point three eight one feet:

421 mm ≅ 1.381 ft

An alternative is also that one foot is approximately zero point seven two four times four hundred twenty-one millimeters.

Conversion table

millimeters to feet chart

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