Resources Converting Inches to Millimenters and Centimenters 1 Inch = 25.4 mm 1inch = 2.54 cm CLICK HERE for more options TPLO Rotation Calculator blade size (mm): 08 10 12 15 18 21 24 27 30 33 preoperative tibial plateau angle rotation: CBLO Rotation Calculator blade size (mm): 08 10 12 15 18 21 24 27 30 33 CORA magnitude rotation: