Американский стандарт для диаметров проводов (AWG) 
    
        
            | AWG | Inch | mm |  | AWG | Inch | mm | 
        
            | 50 | 0.00100 | 0.025 |  | 29 | 0.0113 | 0.287 | 
        
            | 49 | 0.00110 | 0.028 |  | 28 | 0.0126 | 0.320 | 
        
            | 48 | 0.00124 | 0.031 |  | 27 | 0.0142 | 0.361 | 
        
            | 47 | 0.00140 | 0.036 |  | 26 | 0.0159 | 0.404 | 
        
            | 46 | 0.00157 | 0.040 |  | 25 | 0.0179 | 0.455 | 
        
            | 45 | 0.00176 | 0.045 |  | 24 | 0.0201 | 0.511 | 
        
            | 44 | 0.0020 | 0.051 |  | 23 | 0.0226 | 0.574 | 
        
            | 43 | 0.0022 | 0.056 |  | 22 | 0.0253 | 0.643 | 
        
            | 42 | 0.0025 | 0.064 |  | 21 | 0.0285 | 0.724 | 
        
            | 41 | 0.0028 | 0.071 |  | 20 | 0.0320 | 0.813 | 
        
            | 40 | 0.0031 | 0.079 |  | 19 | 0.0359 | 0.912 | 
        
            | 39 | 0.0035 | 0.089 |  | 18 | 0.0403 | 1.02 | 
        
            | 38 | 0.0040 | 0.102 |  | 17 | 0.0453 | 1.15 | 
        
            | 37 | 0.0045 | 0.114 |  | 16 | 0.0508 | 1.29 | 
        
            | 36 | 0.0050 | 0.127 |  | 15 | 0.0571 | 1.45 | 
        
            | 35 | 0.0056 | 0.142 |  | 14 | 0.0641 | 1.63 | 
        
            | 34 | 0.0063 | 0.160 |  | 13 | 0.0720 | 1.83 | 
        
            | 33 | 0.0071 | 0.180 |  | 12 | 0.0808 | 2.05 | 
        
            | 32 | 0.0080 | 0.203 |  | 11 | 0.0907 | 2.30 | 
        
            | 31 | 0.0089 | 0.226 |  | 10 | 0.1019 | 2.60 | 
        
            | 30 | 0.0100 | 0.254 |  |  |  |  |