Electrical Units Converter
Convert between electrical units like volts, amperes, and ohms
Loading...
About Electrical Units Converter
Understanding Electrical Units
Electrical units form the foundation of modern electrical and electronic measurements. The International System of Units (SI) defines seven base units, of which the ampere (current) is fundamental to electrical measurements. Other electrical units like the volt, ohm, and watt are derived from these base units. The historical development of these units traces back to pioneers like Alessandro Volta, Georg Ohm, and James Watt, whose names now represent these essential measurements.
Core Electrical Units
| Quantity | Unit | Symbol | Definition |
|---|---|---|---|
| Current | Ampere | A | Flow of electric charge |
| Voltage | Volt | V | Electric potential difference |
| Resistance | Ohm | Ω | Opposition to current flow |
| Power | Watt | W | Rate of energy transfer |
SI Prefixes in Electronics
Larger Units
- kilo (k): ×1,000
- mega (M): ×1,000,000
- giga (G): ×1,000,000,000
- tera (T): ×1,000,000,000,000
Smaller Units
- milli (m): ×0.001
- micro (μ): ×0.000001
- nano (n): ×0.000000001
- pico (p): ×0.000000000001
Common Applications
Household Electronics
- Wall outlet: 120/230V AC
- USB power: 5V DC
- LED current: 20mA
- Phone charger: 15-20W
Industrial Applications
- Power transmission: 400kV
- Electric motors: 10-100kW
- Industrial current: 100-1000A
- Insulation testing: 100MΩ+
Relationships and Laws
Fundamental Laws
Ohm's Law: V = I × R
Power Law: P = V × I
Joule's Law: P = I² × R
Capacitor Charge: Q = C × V
Inductance: V = L × (dI/dt)
Learn More
You might also like
Related calculators you may find useful
Power Unit Converter
Convert between different units of power measurement. Transform watts, horsepower, BTUs, and other power units with precision and ease.
Energy Converter
Convert between joules, calories, kilowatt-hours, and other energy units
Ohm's Law Calculator
Calculate voltage, current, resistance, and power using Ohm's Law and related electrical formulas. Essential for electrical engineering and circuit analysis.
More Unit Conversion calculators
Convert measurements across multiple systems including metric, imperial, and custom units. Transform values between different scales and standards for scientific and practical applications.
Interested in Advertising?
Tell us more, and we'll get back to you.
Contact Us