Electrical Engineering Hub
Electrical Calculators
Professional electrical calculators for voltage drop, Ohm's Law, and wire sizing. All calculations run entirely client-side — no data is collected.
100% Client-Side — No Data Collected
Available Electrical Calculators
Electrical Calculators
Voltage Drop Calculator
Calculate voltage drop across a wire or resistor. Free DC voltage drop calculator — covers wire run drop, resistor drop, and max wire length. NEC-compliant formula with percentage drop.
Formula:V_drop = 2 × Length × Current × Resistance/ft (wire) | V_drop = I × R (resistor)
3 Mode SolverLaunch Tool