To convert centimeters to inches, you can use the following formula:
1 inch = 2.54 centimeters
So, to convert 20 centimeters to inches, you would divide 20 by 2.54:
20 cm ÷ 2.54 = 7.87 inches
Therefore, 20 centimeters is equal to 7.87 inches.
Real-life example:
Let’s say you have a ruler that measures in centimeters, and you want to know how many inches a 30 cm long object is. You would divide 30 by 2.54 to get the equivalent length in inches.
30 cm ÷ 2.54 = 11.81 inches
So, a 30 cm long object is approximately 11.81 inches long.
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. It helps in making calculations and measurements more accurate and consistent.
2. Can I convert any unit to another unit using the same formula?
No, the conversion factor will vary depending on the units being converted. It is important to know the specific conversion factor for the units you are working with.
3. Is there a shortcut to convert units without using the formula?
There are online converters and apps available that can quickly convert units for you. However, understanding the formula and the concept behind unit conversion is always beneficial.