How this calculator works
Voltage equals current multiplied by resistance: V = IR.
Formula
V=IRVoltage from current and resistance.
Worked example
Verified example is a verified test case used by the calculation engine.
Assumptions and limitations
- Current may be signed to represent direction.
- Resistance is non-negative.
- Use compatible electrical units.
Methodology & sources
This calculator uses deterministic, versioned calculation logic. The formula and verified examples above are part of the calculation definition used by CalcuMint.
- CalcuMint deterministic physics engine
Frequently asked questions
What formula is used?
The deterministic engine uses V = IR.
Can voltage be negative?
Yes when the entered signed current is negative under the selected convention.
