Amps to Volts Electrical Conversion Calculator

Convert amps to volts by entering the current in amps or milliamps and the electrical power in watts, or the resistance of the circuit.

Convert Amps and Watts to Volts

watts

Convert Amps and Ohms to Volts

Results:

  Volts


Convert volts to amps

How to Convert Amps to Volts

Voltage is the potential difference in an electrical circuit, measured in volts. It might be easier to think of it as the amount of force or pressure pushing electrons through a conductor. To convert amps to volts we can use a simple formula defined by Watt’s Law.

Per Watt’s Law, voltage is equal to power divided by current.

Voltage(V) = Power(W) ÷ Current(A)

For example, let’s find the voltage of a device that uses 120 watts of power with a current of 10 amps.


voltage = watts ÷ amps
voltage = 120 W ÷ 10 A
voltage = 12 V

Convert Amps to Volts using Resistance

It is also possible to convert amps to volts if resistance is know, thanks to an Ohm’s Law formula. Using Ohm’s Law, we can state that voltage is equal to electrical current times the resistance.

Voltage(V) = Current(A) × Resistance(Ω)

For example, let’s find the voltage of a circuit with 1.2 amps of current and 20 ohms of resistance.


voltage = amps × ohms
voltage = 1.2 A ÷ 20 Ω
voltage = 24 V

Equivalent Amps and Volts Measurements

Equivalent amps and volts for various power ratings
Current Voltage Power
1 Amps 5 Volts 5 Watts
1 Amps 10 Volts 10 Watts
1 Amps 15 Volts 15 Watts
1 Amps 20 Volts 20 Watts
1 Amps 25 Volts 25 Watts
1 Amps 30 Volts 30 Watts
1 Amps 35 Volts 35 Watts
1 Amps 40 Volts 40 Watts
1 Amps 45 Volts 45 Watts
1 Amps 50 Volts 50 Watts
1 Amps 55 Volts 55 Watts
1 Amps 60 Volts 60 Watts
1 Amps 65 Volts 65 Watts
1 Amps 70 Volts 70 Watts
1 Amps 75 Volts 75 Watts
1 Amps 80 Volts 80 Watts
1 Amps 85 Volts 85 Watts
1 Amps 90 Volts 90 Watts
1 Amps 95 Volts 95 Watts
1 Amps 100 Volts 100 Watts
2 Amps 2.5 Volts 5 Watts
2 Amps 5 Volts 10 Watts
2 Amps 7.5 Volts 15 Watts
2 Amps 10 Volts 20 Watts
2 Amps 12.5 Volts 25 Watts
2 Amps 15 Volts 30 Watts
2 Amps 17.5 Volts 35 Watts
2 Amps 20 Volts 40 Watts
2 Amps 22.5 Volts 45 Watts
2 Amps 25 Volts 50 Watts
2 Amps 27.5 Volts 55 Watts
2 Amps 30 Volts 60 Watts
2 Amps 32.5 Volts 65 Watts
2 Amps 35 Volts 70 Watts
2 Amps 37.5 Volts 75 Watts
2 Amps 40 Volts 80 Watts
2 Amps 42.5 Volts 85 Watts
2 Amps 45 Volts 90 Watts
2 Amps 47.5 Volts 95 Watts
2 Amps 50 Volts 100 Watts
3 Amps 1.667 Volts 5 Watts
3 Amps 3.333 Volts 10 Watts
3 Amps 5 Volts 15 Watts
3 Amps 6.667 Volts 20 Watts
3 Amps 8.333 Volts 25 Watts
3 Amps 10 Volts 30 Watts
3 Amps 11.667 Volts 35 Watts
3 Amps 13.333 Volts 40 Watts
3 Amps 15 Volts 45 Watts
3 Amps 16.667 Volts 50 Watts
3 Amps 18.333 Volts 55 Watts
3 Amps 20 Volts 60 Watts
3 Amps 21.667 Volts 65 Watts
3 Amps 23.333 Volts 70 Watts
3 Amps 25 Volts 75 Watts
3 Amps 26.667 Volts 80 Watts
3 Amps 28.333 Volts 85 Watts
3 Amps 30 Volts 90 Watts
3 Amps 31.667 Volts 95 Watts
3 Amps 33.333 Volts 100 Watts
4 Amps 1.25 Volts 5 Watts
4 Amps 2.5 Volts 10 Watts
4 Amps 3.75 Volts 15 Watts
4 Amps 5 Volts 20 Watts
4 Amps 6.25 Volts 25 Watts
4 Amps 7.5 Volts 30 Watts
4 Amps 8.75 Volts 35 Watts
4 Amps 10 Volts 40 Watts
4 Amps 11.25 Volts 45 Watts
4 Amps 12.5 Volts 50 Watts
4 Amps 13.75 Volts 55 Watts
4 Amps 15 Volts 60 Watts
4 Amps 16.25 Volts 65 Watts
4 Amps 17.5 Volts 70 Watts
4 Amps 18.75 Volts 75 Watts
4 Amps 20 Volts 80 Watts
4 Amps 21.25 Volts 85 Watts
4 Amps 22.5 Volts 90 Watts
4 Amps 23.75 Volts 95 Watts
4 Amps 25 Volts 100 Watts