Amps to volts calculator

Amps (A) to volts (V) calculator.

Select calculation type, enter amps and watts or ohms and press the Calculate button to get volts:

Select calculation:  
Enter amps: A
Enter watts: W
   
Result in volts: V

Volts to amps calculator ►

Amps to volts calculation

Amps to volts calculation with watts

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

V(V) = P(W) / I(A)

Example 1

What is the voltage supply of an electrical circuit that has power consumption of 55 watts and current flow of 3 amps?

The voltage V is equal to 55 watts divided by 3 amps:

V = 55W / 3A = 18.333V

Example 2

What is the voltage supply of an electrical circuit that has power consumption of 65 watts and current flow of 3 amps?

The voltage V is equal to 65 watts divided by 3 amps:

V = 65W / 3A = 21.666666667V

Example 3

What is the voltage supply of an electrical circuit that has power consumption of 95 watts and current flow of 3 amps?

The voltage V is equal to 95 watts divided by 3 amps:

V = 95W / 3A = 31.666666667V

Amps to volts calculation with ohms

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

V(V) = I(A) × R(Ω)

Example 1

What is the voltage supply of an electrical circuit that has current flow of 3 amps and resistance of 20 ohms?

According to ohm's law the voltage V is equal to 3 amps times 20 ohms:

V = 3A × 20Ω = 60V

Example 2

What is the voltage supply of an electrical circuit that has current flow of 3 amps and resistance of 30 ohms?

According to ohm's law the voltage V is equal to 3 amps times 30 ohms:

V = 3A × 30Ω = 90V

Example 3

What is the voltage supply of an electrical circuit that has current flow of 3 amps and resistance of 50 ohms?

According to ohm's law the voltage V is equal to 3 amps times 50 ohms:

V = 3A × 50Ω = 150V

Amps to Volts Conversion Table

Amperes to voltage conversions based on the power formula.

Table showing amps converted to volts at various power ratings.
Current (A)Voltage (V)Power (W)
1 amp5 volts5 watts
1 amp10 volts10 watts
1 amp15 volts15 watts
1 amp20 volts20 watts
1 amp25 volts25 watts
1 amp30 volts30 watts
1 amp35 volts35 watts
1 amp40 volts40 watts
1 amp45 volts45 watts
1 amp50 volts50 watts
1 amp55 volts55 watts
1 amp60 volts60 watts
1 amp65 volts65 watts
1 amp70 volts70 watts
1 amp75 volts75 watts
1 amp80 volts80 watts
1 amp85 volts85 watts
1 amp90 volts90 watts
1 amp95 volts95 watts
1 amp100 volts100 watts
2 amps2.5 volts5 watts
2 amps5 volts10 watts
2 amps7.5 volts15 watts
2 amps10 volts20 watts
2 amps12.5 volts25 watts
2 amps15 volts30 watts
2 amps17.5 volts35 watts
2 amps20 volts40 watts
2 amps22.5 volts45 watts
2 amps25 volts50 watts
2 amps27.5 volts55 watts
2 amps30 volts60 watts
2 amps32.5 volts65 watts
2 amps35 volts70 watts
2 amps37.5 volts75 watts
2 amps40 volts80 watts
2 amps42.5 volts85 watts
2 amps45 volts90 watts
2 amps47.5 volts95 watts
2 amps50 volts100 watts
3 amps1.667 volts5 watts
3 amps3.333 volts10 watts
3 amps5 volts15 watts
3 amps6.667 volts20 watts
3 amps8.333 volts25 watts
3 amps10 volts30 watts
3 amps11.667 volts35 watts
3 amps13.333 volts40 watts
3 amps15 volts45 watts
3 amps16.667 volts50 watts
3 amps18.333 volts55 watts
3 amps20 volts60 watts
3 amps21.667 volts65 watts
3 amps23.333 volts70 watts
3 amps25 volts75 watts
3 amps26.667 volts80 watts
3 amps28.333 volts85 watts
3 amps30 volts90 watts
3 amps31.667 volts95 watts
3 amps33.333 volts100 watts
4 amps1.25 volts5 watts
4 amps2.5 volts10 watts
4 amps3.75 volts15 watts
4 amps5 volts20 watts
4 amps6.25 volts25 watts
4 amps7.5 volts30 watts
4 amps8.75 volts35 watts
4 amps10 volts40 watts
4 amps11.25 volts45 watts
4 amps12.5 volts50 watts
4 amps13.75 volts55 watts
4 amps15 volts60 watts
4 amps16.25 volts65 watts
4 amps17.5 volts70 watts
4 amps18.75 volts75 watts
4 amps20 volts80 watts
4 amps21.25 volts85 watts
4 amps22.5 volts90 watts
4 amps23.75 volts95 watts
4 amps25 volts100 watts

 

 

 

Amps to volts calculation ►

 


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