To convert 18 cm to inches, you can use the following formula:
inches = cm / 2.54
Step by step instructions:
1. Take the value in centimeters, which in this case is 18 cm.
2. Divide the value by 2.54, which is the conversion factor from centimeters to inches.
3. Perform the calculation: 18 cm / 2.54 = 7.08661 inches.
4. Round off the result to the desired number of decimal places, if necessary.
Real-life example:
Let’s say you have a ruler that measures in centimeters, and you want to know how many inches a length of 18 cm is. By using the conversion formula, you can determine that 18 cm is approximately equal to 7.09 inches.
FAQs:
1. Why do we need to convert units?
Converting units allows us to express measurements in different systems for easier comparison and understanding. It also helps in solving mathematical problems and working with different units of measurement.
2. What is the conversion factor for cm to inches?
The conversion factor from centimeters to inches is 2.54. This means that 1 inch is equal to 2.54 centimeters.
3. Can I convert inches to centimeters using the same formula?
Yes, you can convert inches to centimeters by multiplying the value in inches by 2.54. The formula would be: cm = inches * 2.54.