Convert 50 kilometers to miles.

Step 1 ：We know that 1 kilometer is approximately equal to 0.621371 miles. To convert kilometers to miles, we multiply the number of kilometers by 0.621371 miles/kilometer.

Step 2 ：\( 50 \text{ kilometers} \times 0.621371 \text{ miles/kilometer} \)

Step 3 ：This simplifies to \(31.06855\) miles.