All pieces are in inches. Calculations are as follows:   12 x 18 (Inches) = 30.48 x 45.72 (Centimeters)   18 x 24 (Inches) = 45.72 x 60.96 (Centimeter)  24 x 36 (Inches) = 60.96 x 91.44 (Centimeter. 

contact us for more info - contact@redroar.in