What is 10'9" in inches? The answer is that 10 feet and 9 inches equal 129 inches.
The conversion formula for feet to inches is in = ft × 12. Based on this conversion formula, to convert 10 feet and 9 inches to inches, you need to multiply 10 feet by 12 to convert to inches, and then add 9 inches to this result.
10'9" = (10' × 12) + 9"
= 120" + 9" = 129 inches