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Free online Electrical Unit Converters

Electrical Unit Converters turn amps, volts, watts, kWh, kVA, and other electrical units into clear, useful values with formulas and examples for engineers and everyday calculations.

What are Electrical Units?

Electrical units describe power, energy, current, and other electrical values. Learn the common units before using our free converters for accurate results.

Electrical Unit Calculator for converting power, energy, heat, and electrical units such as watts, kWh, BTU, horsepower, and tons.

Common electrical Units:

Electrical units give standard ways to measure power, energy, heat, mechanical output, and cooling capacity. Understanding these units helps you choose the right converter and formula.

Watts, kilowatts and kilowatt-hours

Watts measure power, while kilowatts measure larger power values. Kilowatt-hours measure energy used over time. For example, a 2 kW heater running for 3 hours uses 6 kWh of energy.

BTU and BTU/h

BTU measures heat energy, while BTU/h measures the rate of heat transfer. Engineers often use BTU/h when comparing heating, cooling, air conditioning, and electrical power ratings.

Horsepower

Horsepower measures mechanical power. One mechanical horsepower equals about 745.7 watts. Electrical horsepower uses about 746 watts, so engineers should choose the correct horsepower standard.

Ton

A refrigeration ton measures cooling capacity, not weight. One ton of refrigeration equals 12,000 BTU/h, making it useful for comparing air conditioning and commercial cooling equipment.

How can you use our Electrical Unit Converters?

Our Electrical Unit Converter quickly converts watts, amps, volts, kWh, kVA, and other electrical units with clear results.

Step 1

Choose Your Electrical Units

Select the electrical units you want to convert from and to. Pick the correct source and result units.

Step 2

Enter Your Electrical Values

Enter the value and required voltage, power factor, time, or other needed input.

Step 3

View and Copy Electrical Result

Get the converted electrical value instantly, then copy the result for notes, reports, or later checks.

Browse our free Electrical Unit Converters

Choose a free Electrical Unit Converter below to convert common power, energy, voltage, current, and capacity units quickly.

Ampere Hours to Watt Hours Converter

Convert amp hours to watt hours using voltage to estimate stored electrical energy in a battery.

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Amps to Kilowatts Converter

Convert current in amps to kilowatts using voltage and power factor for an electrical load.

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Amps to Volts Converter

Convert amps to volts when you know electrical power and current for a simple power calculation.

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Amps to Watts Converter

Convert current in amps to watts using voltage and power factor for AC or DC applications.

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Kilovolt Amps to Watts Converter

Convert kilovolt amps to watts using the power factor of the electrical load for an accurate result.

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Kilowatts to Amps Converter

Convert kilowatts to amps using voltage and power factor for motors, equipment, and circuits.

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Kilowatt Hours to Watts Converter

Convert kilowatt hours to watts by entering the time period used for the energy calculation.

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Volts to Amps Converter

Convert voltage to amps using power and the required voltage for a clear electrical current result.

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Volts to Watts Converter

Convert voltage to watts using current and power factor for common electrical power calculations.

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Watts to Amps Converter

Convert watts to amps using voltage and power factor for equipment and electrical circuit checks.

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Watts to Kilovolt Amps Converter

Convert watts to kilovolt amps using the power factor to compare real and apparent electrical power.

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Watts to Kilowatt Hours Converter

Convert watts to kilowatt hours using operating time to estimate electrical energy consumption.

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Watts to Volts Converter

Convert watts to volts using current and power factor for common electrical system calculations.

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Watt Hours to Ampere Hours Converter

Convert watt hours to ampere hours using the system voltage for battery capacity calculations.

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Features of Toolsweb's Electrical Unit Converters

Toolsweb's Electrical Unit Converters provide fast, clear results for common engineering calculations. Convert watts, amps, volts, kWh, kVA, Ah, and related units with simple inputs. Check each result with clear formulas, practical examples, and useful unit relationships.

Common Formulae of our Electrical Units: Table Chat

Conversion

Formula

Conversion

Formula

Ah to Wh

Wh=Ah×VWh = Ah \times V

A to kW

kW=A×V×PF1000kW = \frac{A \times V \times PF}{1000}

A to V

V=WAV = \frac{W}{A}

A to W

W=A×V×PFW = A \times V \times PF

kVA to W

W=kVA×1000×PFW = kVA \times 1000 \times PF

kW to A

A=kW×1000V×PFA = \frac{kW \times 1000}{V \times PF}

kWh to W

W=kWh×1000hW = \frac{kWh \times 1000}{h}

V to A

A=WV×PFA = \frac{W}{V \times PF}

V to W

W=V×A×PFW = V \times A \times PF

W to A

A=WV×PFA = \frac{W}{V \times PF}

W to kVA

kVA=W1000×PFkVA = \frac{W}{1000 \times PF}

W to kWh

kWh=W×h1000kWh = \frac{W \times h}{1000}

W to V

V=WA×PFV = \frac{W}{A \times PF}

Wh to Ah

Ah=WhVAh = \frac{Wh}{V}

Amount of energy used by common appliances

Home Appliances

Wattage (W)

Kitchen Appliances

Wattage (W)

Other Appliances

Wattage (W)

Air Conditioner (HVAC)

2,500–10,000

Refrigerator

500–1,000

Electric Vehicle Charger

1,500–20,000

Air Conditioner (Window Unit)

1,500–5,000

Electric Range/Oven

2,000–5,000

Television

25–500

Heater (Home)

5,000–20,000

Electric Cooktop/Stove

750–5,000

Washing Machine

400–1,500

Heater (Portable)

750–2,000

Microwave Oven

750–1,500

Clothes Dryer

1,800–5,000

Humidifier

25–350

Dishwasher

1,200–2,000

Clothes Iron

750–2,000

Dehumidifier

200–750

Coffee Maker

600–1,200

Hair Dryer

750–2,000

Fan (Ceiling/Table)

15–200

Toaster

750–1,500

Desktop Computer

100–250

Light Bulb (LED)

3–25

Electric Kettle

1,000–2,000

Laptop Computer

35–150

Light Bulb (Incandescent)

15–200

Electric Cooker

160–1,500

Smartphone Charger

5–25

Electric Water Heater

3,000–6,600

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Water Pump/Motor

750–2,000

Energy saving tips:

Save energy by checking high wattage appliances, reducing unused run time, and choosing efficient equipment. Convert watts to kWh to estimate daily or monthly use, then compare results. Focus first on devices that run often or use the most power.

Frequently Asked Questions

These answers explain common electrical conversion questions about AC circuits, power, energy, voltage, current, and kVA.