Questions about Peach binding back 10mm

6mm = 25, 8mm = 45, 10mm = 65, 12mm = 95, 14mm = 125, 16mm = 145, 20mm = 175, 22mm = 210, 25mm = 240, 28 mm = 270, 32mm = 310, 38mm = 375, 44mm = 440