 # Power, Voltage, Current & Resistance (P,V,I,R) Calculator

## Power, Voltage, Current & Resistance (P,V,I,R) Calculator

This calculator is based on simple Ohm’s Law. As we have already shared Ohm’s Law (P,I,V,R) Calculator In which you can also calculate three phase current. But we have designed this one especially for DC Circuits (as well as work for Single Phase AC circuits without Power Factor… (We will share another calculator for Power Factor Calculation). ### Power, Voltage, Current & Resistance Calculator

Enter any two of the following values and press calculate button. Result will display the calculated values.

 Power (W): Voltage (V): Current (A): Resistance (Ω):

### Power, Voltage, Current & Resistance Formulas

Following are the possible formula and equations for this Calculator

(1)   Electrical Power formulas in DC Circuits

• P = VxI
• P = I2R
• P = V2/R

(2)   Electrical Potential or Voltage Formula in DC Circuits

• V = I x R
• V = P / I
• V = √ (P x R)

(3)   Electrical Current Formulas in DC Circuit

• I=V/R
• I = P/V
• I = √P/R

(4)   Electrical Resistance Formulas

• R = V/I
• R = P/I2
• R = V2/P

*Where Related Electrical Calculators:

### Electrical Technology

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E t

4. Mark Ebonga says:

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5. manoj singh says:

Dear sir,

How to select power cable,control cable for dc motor,ac motor.

Regards,
Manoj Singh