What is 34 inches to millimeters? The answer is that 34 inches equals 863.6 millimeters.
How to convert 34 inches to mm? We know that one inch is equal to 25.4 millimeters, so to convert 34 inches to millimeters, we must multiply the amount of centimeters by 25.4, which means that 34 inches is equal to 34 inches × 25.4 = 863.6 mm.
See also: How to convert 34 mm to inches.