## Amps to volts calculation formula with watts

V_{(V)} = P_{(W)} / I_{(A)}

The voltage **V** in volts (V) is equal to the power **P** in watts (W), divided by the phase current **I** in amps (A).

So,

*V = W / A*

*volts = watts / amps*

**For example:**

*Power (P) = 75W*

*Phase current (I) = 2,5A*

*Voltage (V) = 75W / 2,5A = 30V*

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## Amps to volts calculation formula with ohms

V_{(V)} = I_{(A)} × R_{(Ω)}

The voltage **V** in volts (V) is equal to the phase current **I** in amps (A), multiplied by the resistance **R** in ohms (Ω).

So,

*V = A x Ω*

*volts = amps x ohms*

**For example:**

*Phase current (I) = 2,5A*

*Resistance (R) = 7Ω*

*Voltage (V) = 2,5A x 7Ω = 17,5V*

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