# How many square feet are 20x20 inches

## units Convert

How many square centimeters is 1 square inch?
Surface is defined as LäA X LäB, or the square of the Lä. The metric surface sizes (square centimeters, square meters, hectares, ha, etc.) are derived from the metric measure of the length METER.
 1 square inch = 6.45 Square centimeters 2 square inch = 12.9 Square centimeters 3 square inch = 19.35 Square centimeters 4 square inch = 25.81 Square centimeters 5 square inch = 32.26 Square centimeters 6 square inch = 38.71 Square centimeters 7 square inch = 45.16 Square centimeters 8 square inch = 51.61 Square centimeters 9 square inch = 58.06 Square centimeters 10 square inch = 64.52 Square centimeters 11 square inch = 70.97 Square centimeters 12 square inch = 77.42 Square centimeters 13 square inch = 83.87 Square centimeters 14 square inch = 90.32 Square centimeters 15 square inch = 96.77 Square centimeters 16 square inch = 103.23 Square centimeters 17 square inch = 109.68 Square centimeters 18 square inch = 116.13 Square centimeters 19 square inch = 122.58 Square centimeters 20 square inch = 129.03 Square centimeters 21 square inch = 135.48 Square centimeters 22 square inch = 141.94 Square centimeters 23 square inch = 148.39 Square centimeters 24 square inch = 154.84 Square centimeters 25 square inch = 161.29 Square centimeters 26 square inch = 167.74 Square centimeters 27 square inch = 174.19 Square centimeters 28 square inch = 180.64 Square centimeters 29 square inch = 187.1 Square centimeters 30 square inch = 193.55 Square centimeters 31 square inch = 200 Square centimeters 32 square inch = 206.45 Square centimeters 33 square inch = 212.9 Square centimeters 34 square inch = 219.35 Square centimeters 35 square inch = 225.81 Square centimeters 36 square inch = 232.26 Square centimeters 37 square inch = 238.71 Square centimeters 38 square inch = 245.16 Square centimeters 39 square inch = 251.61 Square centimeters 40 square inch = 258.06 Square centimeters 41 square inch = 264.52 Square centimeters 42 square inch = 270.97 Square centimeters 43 square inch = 277.42 Square centimeters 44 square inch = 283.87 Square centimeters 45 square inch = 290.32 Square centimeters 46 square inch = 296.77 Square centimeters 47 square inch = 303.23 Square centimeters 48 square inch = 309.68 Square centimeters 49 square inch = 316.13 Square centimeters 50 square inch = 322.58 Square centimeters