Below is a chart detailing our cord sizing: Size: #0: .0080 inches, .2032mm #1: .0107 inches, .2718mm #2: .0124 inches, .3150mm #3: .0152 inches, .3861mm #5: .0020 inches, .4724mm #6: .0231 inches, .5867mm #7: .0258inches, .5867mm