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Ohm's Law Converter

Use this tool to calculate watts, volts, amps, or ohms based on given electrical values.

Watts (W):

W

Volts (V):

V

Amps (A):

A

Ohms (Ω):

Ω

How to Use:

Enter values in at least two fields
Click "Calculate" to compute results
Click "Reset" to clear all fields

Electrical Formulas:

Power (W) = Voltage (V) × Current (A), W = V × A
Voltage (V) = Current (A) × Resistance (Ω), V = A × Ω
Current (A) = Voltage (V) / Resistance (Ω), A = V / Ω
Resistance (Ω) = Voltage (V) / Current (A), Ω = V / A

This tool helps with:

Determining missing electrical values using Ohm’s Law and power equations.
Converting between power (W), voltage (V), current (A), and resistance (Ω).
Simplifying circuit calculations for electrical and RF applications.

Related Glossary Entries

Resistance (Ω)

Last updated on May 27, 2025 by IBL-Editors Team How helpful was this content for you?