HomeCalculatorsEngineering & Physics CalculatorsOhms Law Calculator Ohms Law Calculator Simplify your circuit calculations with our Ohm’s Law Calculator. Enter any two values to instantly find voltage, current, resistance, and power. Voltage (V) Current (I) Resistance (R) Power (P) Results Voltage (V) Current (I) Resistance (Ω) Power (W) – – – – More Tools BAC Calculator Beam Deflection Calculator Bending Moment Calculator Btu Calculator Capacitor Code Calculator Dew Point Calculator Flow Rate Calculator Gas Law Calculator (Ideal Gas, etc.) Heat Index Calculator Heat Loss Calculator Heat Transfer Calculator Inductive Reactance Calculator Inductor Code Calculator Kirchhoff’s Voltage/ Current Law Calculator Pipe Pressure Drop Calculator Pump Head Calculator Resistor Color Code Calculator Resonant Frequency Calculator RF Attenuation Calculator RLC Circuit Calculator Shear Stress Calculator Thermal Expansion Calculator Torque Calculator Voltage Drop Calculator