45 miles to km

To convert miles to kilometers, you can use the conversion factor that 1 mile is equal to 1.60934 kilometers. Here are the step-by-step instructions to convert 45 miles to kilometers:

Step 1: Write down the given value:
Distance in miles = 45 miles

Step 2: Set up the conversion factor:
1 mile = 1.60934 kilometers

Step 3: Multiply the given value by the conversion factor:
45 miles × 1.60934 kilometers/mile = 72.4203 kilometers

Step 4: Round off the answer to an appropriate number of decimal places:
Since kilometers are typically rounded to two decimal places, the final answer is:
45 miles is approximately equal to 72.42 kilometers.

Therefore, 45 miles is approximately equal to 72.42 kilometers.