Calculate conductor copper weight for IS 694:2010 cables. Used for BOQ material estimation, freight calculation, and copper price indexing. Based on IEC 60228 nominal cross-sections.
Formula: (Cross-section × 8.96 g/cm³ × Cores) ÷ 1000 kg/m. Class 5 flexible adds 2% stranding allowance per IEC 60228.
Single-core conductor weights per metre. Multiply by number of cores for multi-core cables. Resistance values at 20°C per IS 694:2010 Table 1.
| Size (mm²) | Class 2 weight (kg/m) | Class 5 weight (kg/m) | Weight per 100m (kg) | Weight per 1000m (kg) | Max resistance (mΩ/m) @ 20°C |
|---|---|---|---|---|---|
| 0.5 mm² | 0.00448 | 0.00456 | 0.448 | 4.48 | 0.056 |
| 0.75 mm² | 0.00672 | 0.00686 | 0.672 | 6.72 | 0.082 |
| 1 mm² | 0.00896 | 0.00914 | 0.896 | 8.96 | 0.108 |
| 1.5 mm² | 0.01344 | 0.01371 | 1.344 | 13.44 | 0.159 |
| 2.5 mm² | 0.02240 | 0.02285 | 2.240 | 22.40 | 0.260 |
| 4 mm² | 0.03584 | 0.03656 | 3.584 | 35.84 | 0.407 |
| 6 mm² | 0.05376 | 0.05484 | 5.376 | 53.76 | 0.601 |
| 10 mm² | 0.08960 | 0.09139 | 8.960 | 89.60 | 0.986 |
| 16 mm² | 0.14336 | 0.14623 | 14.336 | 143.36 | 1.560 |
| 25 mm² | 0.22400 | 0.22848 | 22.400 | 224.00 | 2.402 |
| 35 mm² | 0.31360 | 0.31987 | 31.360 | 313.60 | 3.341 |
| 50 mm² | 0.44800 | 0.45696 | 44.800 | 448.00 | 4.720 |
| 70 mm² | 0.62720 | 0.63974 | 62.720 | 627.20 | 6.556 |
| 95 mm² | 0.85120 | 0.86822 | 85.120 | 851.20 | 8.846 |
| 120 mm² | 1.07520 | 1.09670 | 107.520 | 1075.20 | 11.122 |
| 150 mm² | 1.34400 | 1.37088 | 134.400 | 1344.00 | 13.850 |
| 185 mm² | 1.65760 | 1.69075 | 165.760 | 1657.60 | 17.017 |
| 240 mm² | 2.15040 | 2.19341 | 215.040 | 2150.40 | 21.994 |
| Single-core conductor weight per metre | Size(mm²) × 8.96 ÷ 1000 = kg/m |
| Multi-core cable conductor weight | Size(mm²) × 8.96 × Cores ÷ 1000 = kg/m |
| Class 5 flexible (add stranding factor) | Single-core weight × 1.02 kg/m |
| Cable price floor estimate | (Cu cost/m + PVC cost) ÷ 0.62 × 1.18 |
| Example: 2.5mm² single-core @ ₹895/kg copper | 2.5 × 8.96 ÷ 1000 × 895 = ₹20.0/m copper cost |