Ohm’s Law Calculator
Calculate resistance and electrical power from voltage and current using Ohm's law.
Use calculator →
CALCULATOR CATEGORY
Electrical Engineering Calculators
Explore free electrical engineering calculators designed for quick estimates, clear inputs and practical results.
5 calculators
TOOLS
Electrical Engineering Calculators
Electrical Power Calculator
Calculate apparent and real electrical power from voltage, current and power factor.
Use calculator →Resistor Color Code Calculator
Calculate a resistor value from two significant digits and the multiplier band exponent.
Use calculator →Series & Parallel Resistance Calculator
Calculate equivalent resistance for three resistors connected in series or parallel.
Use calculator →Capacitor Energy Calculator
Calculate energy stored and electric charge in a capacitor from capacitance and voltage.
Use calculator →