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 4021 yards into kilometers we have to multiply 4021 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

4021 yd → L_(km)

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

L_(km) = 4021 yd × 0.0009144 km

L_(km) = 3.6768024 km

The final result is:

4021 yd → 3.6768024 km

We conclude that 4021 yards is equivalent to 3.6768024 kilometers:

4021 yards = 3.6768024 kilometers

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer is equal to 0.27197545345379 × 4021 yards.

Another way is saying that 4021 yards is equal to 1 ÷ 0.27197545345379 kilometers.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that four thousand twenty-one yards is approximately three point six seven seven kilometers:

4021 yd ≅ 3.677 km

An alternative is also that one kilometer is approximately zero point two seven two times four thousand twenty-one 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