Conversion formula

The conversion factor from yards to kilometers is 0.0009144, which means that 1 yard is equal to 0.0009144 kilometers:

1 yd = 0.0009144 km

To convert 420 yards into kilometers we have to multiply 420 by the conversion factor in order to get the length amount from yards to kilometers. We can also form a simple proportion to calculate the result:

1 yd → 0.0009144 km

420 yd → L_(km)

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

L_(km) = 420 yd × 0.0009144 km

L_(km) = 0.384048 km

The final result is:

420 yd → 0.384048 km

We conclude that 420 yards is equivalent to 0.384048 kilometers:

420 yards = 0.384048 kilometers

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer is equal to 2.6038411865184 × 420 yards.

Another way is saying that 420 yards is equal to 1 ÷ 2.6038411865184 kilometers.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that four hundred twenty yards is approximately zero point three eight four kilometers:

420 yd ≅ 0.384 km

An alternative is also that one kilometer is approximately two point six zero four times four hundred twenty yards.

Conversion table

yards to kilometers chart

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