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

Step 1: Understand the conversion factor

1 nautical mile is equal to 1.852 kilometers. This conversion factor is constant and will be used to convert kilometers to nautical miles.

Step 2: Set up the conversion equation

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

Nautical miles = Kilometers × Conversion factor

Step 3: Plug in the values

Let’s say you have a distance of 100 kilometers that you want to convert to nautical miles. Plug in the values into the equation:

Nautical miles = 100 km × 1.852

Step 4: Perform the calculation

Multiply the number of kilometers by the conversion factor:

Nautical miles = 100 km × 1.852

Nautical miles = 185.2

Step 5: Round the answer (if necessary)

In this case, the answer is already in decimal form. However, if you need to round the answer to a specific decimal place, you can do so at this step.

Step 6: Write the final answer

The final answer is 185.2 nautical miles.

So, 100 kilometers is equal to 185.2 nautical miles.