⚡ Ohm’s Law Calculator
Solve for V, I, R, or P — enter any two values
Results
Voltage
—
V
Current
—
A
Resistance
—
Ω
Power
—
W
Formula Reference
V = I × R | P = V × I | P = I² × R | P = V² / R
Enter any two known values; the calculator solves for the other two.
📝 Worked Example
A 120 V circuit has a 24 Ω resistive load. Find current and power.
| Input | Value |
|---|---|
| Voltage (V) | 120 V |
| Resistance (R) | 24 Ω |
I = V / R = 120 / 24 = 5 A
P = V × I = 120 × 5 = 600 W
Result: I = 5 A | P = 600 W