To convert 8 inches to centimeters, you will need to use a conversion factor of 2.54 centimeters per inch. This means that for every inch, there are 2.54 centimeters. To begin the conversion, you can follow these steps:

Step 1: Write down the given value of 8 inches.

Step 2: Multiply the given value by the conversion factor of 2.54 centimeters per inch. This can be written as 8 inches x (2.54 centimeters/1 inch).

Step 3: Use the given values to cancel out the units of inches, leaving only centimeters. This can be done by multiplying the numerator and denominator of the conversion factor. In this case, 8 inches x 2.54 centimeters = 20.32 centimeters.

Step 4: Write the resulting value, which is 20.32 centimeters.

Therefore, 8 inches is equivalent to 20.32 centimeters.

In summary, to convert inches to centimeters, you can use the formula: centimeters = inches x 2.54. This will help you easily convert any value in inches to centimeters. Also, it is important to remember that when converting units of length, the units must always cancel out each other to ensure correct conversion.