Electric Potential Converter
Convert between different voltage and electric potential units instantly
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Common Conversions
Understanding Electric Potential
Electric potential (also known as voltage) is the electric potential energy per unit charge. It represents the work needed to move a unit of electric charge from a reference point to a specific point against an electric field.
The SI unit of electric potential is the volt (V), defined as joules per coulomb:
1 V = 1 J/C
Electric potential difference (voltage) is related to electric field by the formula:
E = -∇V
where E is the electric field and ∇V is the gradient of the potential.
Common Voltage Examples
1.5 V
AA or AAA battery
9 V
Standard transistor battery
12 V
Automobile battery
120 V
US household electricity
230 V
EU household electricity
30-100 mV
Neural action potential
400 kV
High-voltage transmission lines
100 MV
High-energy physics accelerators