40 cm is equal to approximately 15.75 inches. To convert centimeters to inches, you can use the following formula:
inches = centimeters * 0.3937
So, to convert 40 cm to inches, you would multiply 40 by 0.3937 to get 15.75 inches.
It’s important to note that the conversion factor of 0.3937 is an approximation, as it is based on the assumption that 1 inch is equal to 2.54 centimeters. The actual conversion factor may vary slightly due to slight differences in the definitions of the inch and the centimeter. However, the difference is usually very small and can generally be ignored for most practical purposes.