| 1 | Enameled Copepr Wire- weight and length conversion formula | L/KG | L1=143M/(D*D ) |
| 2 | Rectangular Wire- weight and length conversion formula | g/L | Z=(T*W-0.2146*T2)*8900*1000/1000000 |
| 3 | Cross-sectional area of Rectangular Wire | mm2 | S=T*W-0.2146*T2 |
| 4 | Litz Wire-weight and length conversion formula | L/KG | L2=274 / (D*D*2*Strands) |
| 5 | Resistance of rectangular wire | Ω/L | R=r*L1/S |
| 6 | Formula 1:Resistance of Litz Wire | Ω/L | R20=Rt ×α×103/L3 |
| 7 | Formula 2:Resistance of Litz Wire | Ω/L | R2(Ω/Km)≦ r×1.03 ÷s×at×1000 |
| L1 | Length(M) | R1 | Resistance(Ω/m) |
| L2 | Length(M/KG) | r | 0.00000001724Ω*㎡/m |
| L3 | Length(KM) | R20 | Conductor resistance per 1km at 20°C (Ω/km) |
| M | Weight(KG) | Rt | Resistance at t°C (Ω) |
| D | Diameter(mm) | αt | Temperature Coefficient |
| Z | Weight(g/m) | R2 | Resistance(Ω/Km) |
| T | Thickness(mm) | r | Resistance of 1 meter single-strand enameled copper wire |
| W | Width(mm) | s | Strands(pcs) |
| S | Cross-sectional Area(mm2) |