Earthing / Grounding Resistance Calculator
Estimate the resistance of your earth electrode system using established Dwight formulas. Compare results against IS 3043 and IEEE 80 earthing standards.
Earthing / Grounding Resistance
Results
Earth Electrode Resistance26.4 Ω
Single Electrode Resistance:26.4 Ω
2 Electrodes in Parallel:13.2 Ω
3 Electrodes in Parallel:8.8 Ω
IEEE 80 Target (substations):< 1 Ω
IS 3043 Target (LV systems):< 5 Ω
Formula (Dwight)
R = (ρ/2πL) × [ln(4L/a) − 1]