What is 26 inches to millimeters? The answer is that 26 inches equals 660.4 millimeters.
How to convert 26 inches to mm? We know that one inch is equal to 25.4 millimeters, so to convert 26 inches to millimeters, we must multiply the amount of centimeters by 25.4, which means that 26 inches is equal to 26 inches × 25.4 = 660.4 mm.
See also: How to convert 26 mm to inches.