Joules to volts (J to V) Converter Online Calculator
1 volt is equal to 1 joule of electric potential energy per(divided by) 1 coulomb of charge. Was this answer helpful?
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Note, For higher values like 5×10^{3}, 10×10^{6}, 1.6 x10^{12}, enter the value like this for scientific notation as 5e3, 10e6, 1.6e12, etc.
Conversion Using the Power Formula :
Joules to Volts Calculation:
The voltage V in volts (V) is equal to the energy (E) in joules (J), divided by the charge Q in coulombs (C):
For example, let’s Convert 15 joules of energy with a charge of 6 coulombs to volts.
V_{(V)} = 15 ÷ 5
V_{(V)} = 3 V
Where:

 V = Voltage in volts
 E = Energy in Joules (j)
 Q = Electric Charge (C)
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How to use This Calculator?
To use the above “Joules to Volts Conversion Calculator” follow the below steps:
01. Enter Energy: Input the Energy in Joules value in the specified input box. You can enter the value in Joules by choosing the appropriate option from the dropdown
02. Enter Coulombs Charge: Input the Coulombs Charge value in the specified input box. You can enter the value in C by choosing the appropriate option from the dropdown.
03. Reset: If you want to “reset” the calculator to perform another conversion, you can click the “Reset” button, and all input fields will be cleared.
04. Calculate: Click the “Calculate” button to obtain the results. The calculated results will be displayed in the “Results:” section.
05. Swap: If you want to “Swap” the calculated to Exchange conversion, you can click the “Swap” button, and Calculate will be Exchange.
06. Result: The calculated “result” will be displayed in the respective “Result In Volts (V)” output field.
Frequently asked questions
1 Volt is defined as energy consumption of 1 joule per electric charge of 1 coulomb. 1V = 1J/C.
The wattage in 1 amp depends on the voltage of the system. Using the formula for DC conversion: Watts = Amps x Volts, at 120 volts.
When spelled out, it means voltage (v) = current (A) x resistance (ohm), or volts = amps x ohms, or V = A x Ω.
How to Convert Watts, Amps, & Volts
Watts = Amps x Volts
Examples: 20 Amps x 220 Volts = 4400 Watts. 10 Amps x 240 Volts = 2400 Watts.
Joule is the unit of work done in the case of electric current, and coulomb is the unit of charge. Hence, joule/coulomb will be the unit of potential difference as it is the work done in moving unit charge from one point to another. So, 1 joule per coulomb = 1 volt = 1 V.