To convert 20cm to inches, we need to understand the conversion factor between centimeters and inches. 1 inch is equal to 2.54 centimeters. This conversion factor can be used to convert any length in centimeters to inches by dividing the length in centimeters by 2.54.
Conversion Calculation
The calculation to convert 20cm to inches involves dividing 20 by 2.54. This can be represented as 20cm / 2.54 = x inches, where x is the length in inches.
Performing the Calculation
Using a calculator or performing the division manually, we get 20 / 2.54 = 7.874015748. Rounding this to a more manageable form, 20cm is approximately equal to 7.87 inches.
| Measurement in CM | Equivalent in Inches |
|---|---|
| 20cm | 7.87 inches |
In conclusion, the conversion of 20cm to inches is a straightforward process using the conversion factor of 1 inch = 2.54 cm. This conversion is essential in various fields where measurements need to be translated from the metric system to the imperial system or vice versa.
Key Points
- 1 inch is equal to 2.54 centimeters, serving as the basis for converting between these units.
- To convert centimeters to inches, divide the length in centimeters by 2.54.
- 20cm is approximately equal to 7.87 inches when converted using the standard conversion factor.
- The precision of the conversion (number of decimal places) depends on the specific application or field of use.
- Understanding and applying conversion factors is crucial in both professional and everyday contexts where measurements are involved.
For individuals who frequently work with measurements, whether in professional capacities or for personal projects, having a grasp of conversion factors like the one between centimeters and inches can significantly streamline tasks and reduce errors.
How do I convert inches to centimeters?
+To convert inches to centimeters, multiply the length in inches by 2.54. For example, to convert 10 inches to centimeters, you would calculate 10 * 2.54 = 25.4 cm.
Is the conversion factor between inches and centimeters always exact?
+The conversion factor of 1 inch = 2.54 cm is exact by definition within the metric system. However, the precision of conversions depends on the context and the number of decimal places considered. In most practical applications, using 2.54 as the conversion factor provides sufficient accuracy.
How can I easily remember the conversion between inches and centimeters?
+A simple way to remember the conversion is to recall that 1 inch is slightly less than 2.5 times the length of 1 centimeter, or exactly 2.54 cm. You can also use conversion charts or online tools for quick reference.
