Converters
Quick electrical and energy unit converters.
- Watts to Amps Calculator: Convert watts to amps for DC, single-phase and three-phase AC circuits, with power factor and line-to-line voltage built in.
- Amps to Watts Calculator: Convert amps to watts for DC, single-phase and three-phase AC loads using voltage and power factor.
- kW to Amps Calculator: Convert kilowatts to amps for DC, single-phase and three-phase AC systems at any voltage and power factor.
- kVA to kW Calculator: Convert kVA to kW with any power factor and see the reactive power in kVAR for generators, UPS units and transformers.
- Watts to kWh Calculator: Convert an appliance's watts into kilowatt-hours per day, month and year from the hours it runs.
- kWh Calculator: Work out the kilowatt-hours any device uses from its power and run time, and see what that energy costs at your electricity rate.
- mAh to Wh Calculator: Convert milliamp-hours to watt-hours for power banks, phone batteries and battery packs, and check the 100 Wh airline limit.
- Ah to Wh Calculator: Convert amp-hours to watt-hours, or watt-hours to amp-hours, for 12 V, 24 V and 48 V batteries.