You can't convert volts to amps since volt and amp units represent different quantities (like converting gallons to miles).
However, if you have at least least two of the following three: amps, volts or watts then the missing one can be calculated. Since watts are amps multiplied by volts, there is a simple relationship between them.
Use this handy Volts / Watts / Amps Converter to calculate volts, watts, or amps.
The following equations can be used to convert between amps, volts, and watts:
Converting Watts to Amps
The conversion of Watts to Amps at fixed voltage is governed by the equation Amps = Watts/Volts
For example 12 watts/12 volts = 1 amp
Converting Amps to Watts
The conversion of Amps to Watts at fixed voltage is governed by the equation Watts = Amps x Volts
For example 1 amp * 110 volts = 110 watts
Converting Watts to Volts
The conversion of Watts to Volts at fixed amperage is governed by the equation Volts = Watts/Amps
For example 100 watts/10 amps = 10 volts
Converting Volts to Watts
The conversion of Volts to Watts at fixed amperage is governed by the equation Watts = Amps x Volts
For example 1.5 amps * 12 volts = 18 watts
Converting Volts to Amps at fixed wattage
The conversion of Volts to Amps if the wattage is known is governed by the equations Amps = Watts/Volts
For example 120 watts/110 volts = 1.09 amps
Converting Amps to Volts at fixed wattage
The conversion of Amps to Volts if the wattage is know is governed by the equation Volts = Watts/Amps
For Example, 48 watts / 12 Amps = 4 Volts
Converting Volts to Amps at a fixed resistance
If you know the volts and the load of the resistance the amps are found by Ohm's law: Amps = Volts / Resistance
Converting Amps to Volts at fixed resistance
If you know the amps and the resistance Ohm's law becomes Volts = Amps * Resistance