What is 40 inches to centimeters? The answer is that 40 inches equals 101.6 centimeters.
How to convert 40 inches to cm? We know that one inch is equal to 2.54 centimeters, so to convert 40 inches to centimeters, we must multiply the amount of centimeters by 2.54, which means that 40 inches is equal to 40 inches × 2.54 = 101.6 cm.
See also: How to convert 40 cm to inches.