What is 300 millimeters to inches? The answer is that 300 mm equals 11.811 inches.
How to convert 300 mm to inches? We know that one inch is equal to 25.4 millimeters, so to convert 300 millimeters to inches, we must divide the amount of centimeters by 25.4, which means that 300 millimeters is equal to 300 mm ÷ 25.4 = 11.811 inches.
See also: How to convert 300 inches to mm.