Conversion formula

The conversion factor from miles to kilometers is 1.609344, which means that 1 mile is equal to 1.609344 kilometers:

1 mi = 1.609344 km

To convert 620 miles into kilometers we have to multiply 620 by the conversion factor in order to get the length amount from miles to kilometers. We can also form a simple proportion to calculate the result:

1 mi → 1.609344 km

620 mi → L_(km)

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

L_(km) = 620 mi × 1.609344 km

L_(km) = 997.79328 km

The final result is:

620 mi → 997.79328 km

We conclude that 620 miles is equivalent to 997.79328 kilometers:

620 miles = 997.79328 kilometers

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer is equal to 0.0010022116003828 × 620 miles.

Another way is saying that 620 miles is equal to 1 ÷ 0.0010022116003828 kilometers.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that six hundred twenty miles is approximately nine hundred ninety-seven point seven nine three kilometers:

620 mi ≅ 997.793 km

An alternative is also that one kilometer is approximately zero point zero zero one times six hundred twenty miles.

Conversion table

miles to kilometers chart

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