Electric Power Calculator

Ohm's Law connects voltage (V), current (I), resistance (R), and power (P). Enter any two values to solve for the remaining quantities instantly.

Enter 0.02 for 20 mA

Related Engineering Calculators

Explore more calculators in Hardware Design

Copper Bar Current Capacity
Thermal-balance ampacity and loss estimation.
Copper Bar Resistance
Resistance, power loss, and voltage drop for copper bars.
Copper Bar Price Calculator
Estimate cost before quotation and procurement.
Metal Weight Calculator
Convert dimensions into copper, brass, or aluminum weight.