Formula: square inches x 6.4516 = square centimeters
1 square centimeter = 0.155 square inches
You can't convert that.
To convert square inches to square mm, multiply square inches by 645.16
1 square centimeter is 0.155 square inches.
1 centimeter = 0.393700787 inches
15.5 square inches
To convert from square inches to square cm, multiply by 6.452.
You cannot convert square inches to inches. Square inches are units used to measure area and inches are units of length. You cannot convert one to the other.
You can't convert that. You can convert feet to inches, or square feet to square inches.
To convert from square kilometers to square inches, multiply by 1.55E+09.