To convert centimeters (cm) to inches (in), you can use the following conversion factor: 1 inch = 2.54 centimeters.
Here’s how you can convert 40 cm to inches:
1. Write down the given value: 40 cm
2. Multiply the given value by the conversion factor: 40 cm x 1 inch/2.54 cm = 15.75 inches
3. The result is the equivalent value in inches: 40 cm is equal to 15.75 inches
Real-life example:
Let’s say you have a piece of fabric that measures 40 cm in length. To convert this measurement to inches, you would use the conversion factor of 1 inch = 2.54 cm. By multiplying 40 cm by 1 inch/2.54 cm, you would find that the fabric is approximately 15.75 inches long.
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 unit systems.
2. Can I convert units without using a conversion factor?
Using a conversion factor is the most accurate and reliable way to convert units. It ensures that the conversion is done correctly and consistently.
3. Is there a shortcut to convert units quickly?
While there are some shortcuts for common conversions, it’s always best to use the conversion factor method to ensure accuracy. Practice and familiarity with common conversion factors can help speed up the process.