18 cm^2 to in^2

To convert square centimeters to square inches, you can use the conversion factor 1 square inch = 6.4516 square centimeters.

Therefore, to convert 18 square centimeters to square inches, divide 18 by 6.4516:

18 cm^2 / 6.4516 cm^2 = 2.7878 in^2

So, 18 square centimeters is approximately equal to 2.7878 square inches.