To convert kilometers (km) to 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 and is used to convert between the two units.

Step 2: Set up the conversion equation

To convert km to miles, you can set up the equation as follows:

miles = kilometers × conversion factor

Step 3: Plug in the values

Let’s say you want to convert 5 kilometers to miles. Plug in the values into the equation:

miles = 5 km × 0.621371

Step 4: Perform the calculation

Multiply the given kilometers by the conversion factor:

miles = 5 km × 0.621371

miles = 3.106855

Step 5: Round the answer (if necessary)

In this case, the answer is already rounded to 6 decimal places. However, if you need to round it further, you can do so according to the desired level of precision.

Step 6: Write the final answer

The final answer is that 5 kilometers is equal to approximately 3.106855 miles.

So, 1 kilometer is approximately equal to 0.621371 miles.