Conversion formula

The conversion factor from feet to yards is 0.33333333333333, which means that 1 foot is equal to 0.33333333333333 yards:

1 ft = 0.33333333333333 yd

To convert 640 feet into yards we have to multiply 640 by the conversion factor in order to get the length amount from feet to yards. We can also form a simple proportion to calculate the result:

1 ft → 0.33333333333333 yd

640 ft → L_(yd)

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

L_(yd) = 640 ft × 0.33333333333333 yd

L_(yd) = 213.33333333333 yd

The final result is:

640 ft → 213.33333333333 yd

We conclude that 640 feet is equivalent to 213.33333333333 yards:

640 feet = 213.33333333333 yards

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 yard is equal to 0.0046875 × 640 feet.

Another way is saying that 640 feet is equal to 1 ÷ 0.0046875 yards.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that six hundred forty feet is approximately two hundred thirteen point three three three yards:

640 ft ≅ 213.333 yd

An alternative is also that one yard is approximately zero point zero zero five times six hundred forty feet.

Conversion table

feet to yards chart

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