3 calculators in this category
- Watts to Amps CalculatorNFPA 70 (NEC) 2023Convert power to current, or current back to power, for DC, single-phase AC and three-phase AC circuits. Enter the watts (or…
- Appliance Electricity Cost CalculatorkWh = W × h ÷ 1000Enter an appliance's power in watts (or its amps and volts), how long you run it, and what you pay per kilowatt-hour. You get…
- Generator Fuel Consumption & Runtime CalculatorISO 8528-1 genset ratingsWork out how much fuel a generator burns per hour at a given load, how long it runs on the fuel you have, and what the…
Which one do you need?
- Watts to Amps Calculator
- Convert watts to amps or amps to watts for DC, single-phase and three-phase circuits. Enter voltage and power factor to get current, kVA and breaker size.
- Appliance Electricity Cost Calculator
- Work out what any appliance costs to run: enter watts or amps, hours per day and your electricity rate to get kWh and dollars per day, month and year.
- Generator Fuel Consumption & Runtime Calculator
- Estimate generator fuel burn per hour, runtime on a tank, fuel cost per hour and cost per kWh for diesel, gasoline, propane or natural gas at any load.