To convert centimeters to inches, you can use the following formula:

inches = centimeters / 2.54

Now, let’s convert 16.5 centimeters to inches:

inches = 16.5 / 2.54

inches = 6.49606299213

Therefore, 16.5 centimeters is equal to approximately 6.5 inches.

Real-life example:

Let’s say you have a ruler that measures in centimeters, and you want to know how many inches a 20 cm long object is. By using the formula above, you can easily convert 20 cm to inches by dividing 20 by 2.54, which equals approximately 7.87 inches.

FAQs:

1. Why do we need to convert units?

Converting units allows us to easily compare measurements in different systems and use them in different contexts. For example, if you have a recipe that uses metric units but you are more familiar with imperial units, converting the measurements can make it easier to follow.

2. Can I convert units without using a formula?

While it is possible to convert units using online converters or calculators, understanding the formula and the process behind unit conversion can be helpful in various situations where you may not have access to such tools.

3. Is there a simple way to remember the conversion factor between centimeters and inches?

One common mnemonic to remember the conversion factor between centimeters and inches is “2.54 cm in an inch.” This can help you quickly recall that 1 inch is equal to 2.54 centimeters.