This very simple calculator helps to evaluate current by voltage and resistance using ohm law:

where I is the current in amperes, V is the potential difference in volts,and R is a circuit parameter called the resistance (measured in ohms, also equivalent to volts per ampere).

Ohm's law

Voltage (in volts)

Resistance (in ohms)

Digits after the decimal point: 2

Current (I)

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