Calculators
Electrical calculators
26 tools
Amps, volts, watts, kVA, and power tools.
- Amps to kW Calculator Convert current in amps to real power in kilowatts for single-phase and three-phase systems.
- Amps to VA Calculator Convert amps and volts to apparent power in volt-amperes for single-phase and three-phase electrical systems.
- Amps to Volts Calculator Convert current and resistance to voltage, or voltage and resistance to current (Ohm’s law).
- Electric Power Calculator Calculate electric power from voltage and current for DC and AC systems.
- Electricity Bill Calculator Estimate an electricity bill from kWh usage, rate, and optional fixed fees.
- Energy Consumption Calculator Calculate energy used in kilowatt-hours from power and time.
- Energy Cost Calculator Estimate electricity cost from appliance power, usage hours, and energy rate.
- eV to Volts Calculator Convert electronvolts to volts for a given elementary charge count, and reverse.
- kVA to Amps Calculator Convert kilovolt-amperes to amps for single-phase and three-phase systems.
- kVA to kW Calculator Convert kilovolt-amperes to kilowatts using power factor.
- kW to VA Calculator Convert kilowatts to volt-amperes using power factor.
- kWh to kW Calculator Convert energy in kWh and duration to average power in kW.
- kWh to Watts Calculator Convert kilowatt-hours and time to average power in watts.
- mAh to Wh Calculator Convert battery capacity from milliamp-hours to watt-hours using voltage.
- Ohm's Law Calculator Calculate voltage, current, or resistance using Ohm's law. Enter any two values to solve for the third.
- Power Factor Calculator Calculate power factor, reactive power, and correction capacitance from voltage, current, and real power.
- VA to kVA Calculator Convert volt-amperes (VA) to kilovolt-amperes (kVA) and back.
- Voltage Divider Calculator Calculate the output voltage of a resistive voltage divider.
- Volts to Joules Calculator Convert voltage and charge to energy in joules.
- Volts to kW Calculator Convert voltage and current to kilowatts for single-phase and three-phase systems.
- Watts to Amps Calculator Convert real power in watts to current in amps for DC, single-phase, and three-phase systems.
- Watts to Joules Calculator Convert power and time to energy in joules, or energy and time to power.
- Watts to kVA Calculator Convert watts to kilovolt-amperes using power factor.
- Watts to VA Calculator Convert real power in watts to apparent power in VA using power factor.
- Watts to Volts Calculator Convert power and current to voltage, or power and voltage to current.
- Watts Volts Amps Calculator Convert between watts, volts, and amps using the basic power relationships.