Fundamentals · Calculator
Ohm's Law Calculator
Solve for voltage, current, or resistance — the foundational relationship in DC circuit analysis.
Adjust inputs and the results update automatically.
Solve for…
Inputs
Provide any two of voltage, current, and resistance.
Formula
V = I × R
Results
Voltage
50.0000V
Current
0.5000A
Resistance
100.000Ω
Power
25.000W
Example Component Suggestions
Illustrative only — no real part numbers or manufacturers referenced.
Best Match
Example Component A
General-purpose, mid-range tolerance
Alternate
Example Component B
Precision class, low drift
Stretch
Example Component C
High-power, extended range