To convert kilometers (km) into miles, you can use the following step-by-step instructions:

Step 1: Understand the conversion factor

1 kilometer is equal to 0.621371 miles. This conversion factor is a constant value that allows us to convert between the two units.

Step 2: Set up the conversion equation

To convert km to miles, we can use the following equation:

Miles = Kilometers × Conversion Factor

Step 3: Plug in the values

Let’s say we have a distance of 10 kilometers that we want to convert to miles. We can substitute the values into the equation:

Miles = 10 km × 0.621371

Step 4: Perform the calculation

Multiply the given kilometers by the conversion factor:

Miles = 10 km × 0.621371

Miles = 6.21371 miles

Therefore, 10 kilometers is equal to approximately 6.21371 miles.

Note: If you are using a calculator, make sure to use enough decimal places to maintain accuracy.