What is 1 millimeters to inches? The answer is that 1 mm equals 0.0393 inches.
How to convert 1 mm to inches? We know that one inch is equal to 25.4 millimeters, so to convert 1 millimeters to inches, we must divide the amount of centimeters by 25.4, which means that 1 millimeters is equal to 1 mm ÷ 25.4 = 0.0393 inches.
See also: How to convert 1 inches to mm.