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## Related Tools

- Power & voltage to current (DC)
- Voltage & current to power (DC)
- Current & resistance to voltage (DC)
- Power & current to resistance (DC)
- Power & resistance to voltage (DC)

## User Guide

Use this calculator to determine the voltage in microvolt, millivolt or volt units, applied to a direct current (DC) electrical circuit with a specified power and current. Two conversion scales show how the voltage will vary when the power or current is changed independently.

### Formula

The formula used by this calculator to determine the DC voltage from the power and current of the circuit is:

V = P / I

#### Symbols

- V = Voltage (DC)
- P = Electrical power (DC)
- I = Current (DC)

### Power (P)

This is the electrical power generated in a DC electrical circuit.

### Current (I)

This is the electrical current flowing through the DC electrical circuit.

### Voltage (V)

This is the DC voltage or electrical potential difference that would be applied to or generated by an electrical circuit with the specified power and current values.