21 inches in cm

introduction to 21 Inches in Feet Quick Answer: 21 inches equals exactly 1.75 feet. In feet and inches, that is 1 ft 9 in (written 1′ 9″), and as a fraction it is 1 ¾ feet. To get this, divide 21 by 12, because one foot has 12 inches. 21 inches is also 53.34 cm….