Electrical Converter

How to Use Electrical Converter?

To convert between electrical units, select the 'From' unit, enter the value, select the 'To' unit, and click Convert. This tool supports conversions between power (Watts), current (Amperes), voltage (Volts), and their multiples. Note: Some conversions may require additional parameters like voltage or resistance, which can be calculated using dedicated tools like the Watts to Amps converter.

Electrical Conversion Principles

1. Power Units (Watt)

The Watt (W) is the SI unit of power, representing the rate of energy transfer. Common multiples include Kilowatt (kW = 1,000 W), Megawatt (MW = 1,000,000 W), and submultiples like Milliwatt (mW = 0.001 W). Power in electrical circuits is calculated as P = V × I (Voltage times Current).

2. Current Units (Ampere)

The Ampere (A) is the SI unit of electric current, representing the flow of electric charge. Kiloampere (kA = 1,000 A) is used for high currents in industrial applications, while Milliampere (mA = 0.001 A) is common in electronics and low-power circuits.

3. Voltage Units (Volt)

The Volt (V) is the SI unit of electric potential difference. Kilovolt (kV = 1,000 V) is used in power transmission lines, while Millivolt (mV = 0.001 V) is used in sensitive electronic measurements and sensor applications.

4. Apparent Power (Volt-Ampere)

Volt-ampere (VA) and Kilovolt-ampere (kVA) measure apparent power in AC circuits. When the power factor is 1 (purely resistive load), 1 VA equals 1 Watt. These units are commonly used to rate transformers, UPS systems, and generators.

5. Ohm's Law

• V = I × R (Voltage = Current × Resistance)
• I = V / R (Current = Voltage / Resistance)
• R = V / I (Resistance = Voltage / Current)
• These fundamental relationships help convert between voltage, current, and resistance.

6. Power Formulas

• P = V × I (Power = Voltage × Current)
• P = I² × R (Power = Current² × Resistance)
• P = V² / R (Power = Voltage² / Resistance)
• These formulas connect power, voltage, current, and resistance.

7. Common Voltage Levels

• Batteries: 1.5 V, 3.7 V, 9 V, 12 V
• USB: 5 V
• Household (US): 120 V AC
• Household (EU): 230 V AC
• Electric vehicles: 400-800 V
• Power transmission: 110 kV - 765 kV

8. Common Current Levels

• LED lights: 20-100 mA
• Laptop chargers: 2-5 A
• Household circuits: 15-20 A
• Electric vehicle charging: 16-80 A
• Industrial equipment: 100-1000 A
• Power transmission: 1-10 kA

9. Practical Applications

Understanding electrical units is essential for designing circuits, selecting appropriate wire gauges, choosing circuit breakers, calculating energy consumption, and ensuring electrical safety. Always consult local electrical codes and standards when working with electrical systems.

10. Safety Considerations

High voltages and currents can be dangerous. Standard household voltage (120V or 230V) can be lethal. Always turn off power before working on electrical systems, use appropriate protective equipment, and consult qualified electricians for installations and repairs.

Common Electrical Units

Watt (W), Kilowatt (kW), Megawatt (MW)

Units of power representing the rate of energy transfer or consumption. Used to rate appliances, motors, and power generation capacity.

Ampere (A), Kiloampere (kA), Milliampere (mA)

Units of electric current representing the flow of electric charge through a conductor. Critical for wire sizing and circuit protection.

Volt (V), Kilovolt (kV), Millivolt (mV)

Units of electric potential difference or electromotive force. Determines the 'push' that drives current through a circuit.

Volt-Ampere (VA), Kilovolt-Ampere (kVA)

Units of apparent power in AC circuits. Important for sizing transformers, generators, and UPS systems, especially when dealing with reactive loads.