What is 4 inches to centimeters? The answer is that 4 inches equals 10.16 centimeters.
How to convert 4 inches to cm? We know that one inch is equal to 2.54 centimeters, so to convert 4 inches to centimeters, we must multiply the amount of centimeters by 2.54, which means that 4 inches is equal to 4 inches × 2.54 = 10.16 cm.
See also: How to convert 4 cm to inches.