What is 12.7 millimeters to inches? The answer is that 12.7 mm equals 0.5 inches.
How to convert 12.7 mm to inches? We know that one inch is equal to 25.4 millimeters, so to convert 12.7 millimeters to inches, we must divide the amount of centimeters by 25.4, which means that 12.7 millimeters is equal to 12.7 mm ÷ 25.4 = 0.5 inches.
See also: How to convert 12.7 inches to mm.