Compute voltage, current, or resistance with V = I * R.
Last Updated: 26 Feb 2026
V: 12 V
I: 2 A
R: 6 Ω
Ohm's Law Solver helps you compute voltage, current, or resistance with v = i * r. It is commonly used by engineers, lab users, field operators for ohm law, ohms law calculator, voltage current resistance.
V = I * R (Ohm's Law)
If you know two of the values:
- Voltage (V)
- Current (I)
- Resistance (R)
…this tool calculates the missing one.