Calculate voltage/current/resistance/power.

Enter 2 *values* to get the other values and press the *Calculate* button:

The current I in amps (A) is equal to the voltage V in volts (V) divided by the resistance R in ohms (Ω):

Example

20V10Ω

= 2AThe power P in watts (W) is equal to the voltage V in volts (V) times the current I in amps (A):

*P* = *V* × *I*

Example

*P* = 20V × 2A = 40W

Enter 2 values of magnitude+phase angle to get the other values and press the *Calculate* button:

The voltage V in volts (V) is eqaul to the current I in amps (A) times the impedance Z in ohms (Ω):

*V*_{(V)} = *I*_{(A)} × *Z*_{(Ω)} =
(|*I*|×|*Z*|) ∠ (*θ _{I}* +

The complex power S in volt-amps (VA):

*S*_{(VA)} = (|*V*|×|*I*|) ∠ (*θ _{V}* -

- Amps to kW
- Amps to kVA
- Amps to VA
- Amps to volts
- Amps to watts
- Electricity bill
- Energy consumption
- Energy cost
- eV to volts
- Joules to watts
- Joules to volts
- kVA to amps
- kVA to watts
- kVA to kW
- kVA to VA
- kW to amps
- kW to volts
- kW to kWh
- kW to VA
- kW to kVA
- kWh to kW
- kWh to watts
- Ohm's Law
- Power calculator
- Power factor
- VA to amps
- VA to watts
- VA to kW
- VA to kVA
- Voltage divider
- Volts to amps
- Volts to watts
- Volts to kW
- Volts to joules
- Volts to eV
- Watts-volts-amps-ohms
- Watts to amps
- Watts to joules
- Watts to kWh
- Watts to volts
- Watts to VA
- Watts to kVA