Convert watts to kilowatts, amps to kilowatts, kilowatts to watts, and kilowatts to kilowatt-hours. This calculator also estimates electricity cost, load amps, volt-amps, and circuit load planning values.
Watts to kilowatts:
The calculator divides watts by 1,000.
Amps to kilowatts:
The calculator uses volts, amps, phase type, and power factor to estimate kW.
Energy cost:
The calculator multiplies kWh by your electric rate to estimate usage cost.
A kilowatt calculator helps compare appliance power, circuit load, energy use, and electricity cost.
It can help with heaters, appliances, EV chargers, motors, lighting, solar estimates, battery systems, shop equipment, generator loads, and general electrical planning.
Your result shows kilowatts, watts, kilowatt-hours, estimated cost, load amps, volt-amps, circuit load percentage, remaining amps, and scenario comparisons.
There are 1,000 watts in 1 kilowatt.
kW measures power at a moment in time. kWh measures energy used over time.
For single-phase power, multiply volts by amps and power factor, then divide by 1,000. For three-phase power, also multiply by √3.
Yes. Enter kilowatts, runtime hours, days, and your electric rate to estimate kWh cost.