Electrical Unit Converters Hub
Real-time bidirectional conversion for Power, Current, Voltage, Resistance, Energy, Frequency, Capacitance, and AWG wire conductors. High-precision calculations with zero latency.
Explore Dedicated Conversion Suites
Direct calculators, standard conversion constants, and formulas grouped by electrical discipline.
Power Units
Instantly convert mechanical horsepower, thermal BTU/hr, refrigeration tons, and electrical watts.
Current Units
Translate small microamp circuit currents, milliamp sensor loops, and high-voltage substation kiloamps.
Voltage Potential
Convert thermocouple millivolts, standard household 120V/240V, and utility grid transmission kilovolts.
Electrical Resistance
Calculate shunt resistor milliohms, standard component kiloohms, and insulation tester megaohms.
Energy & Work
Bridge thermodynamic calories, electrical kilowatt-hours, and physical joules for utility billing and physics.
Frequency & Speed
Translate rotational motor RPM into electrical Hertz (Hz), radio Megahertz (MHz), and clock rates.
Capacitance
Convert electrolytic motor start microfarads, ceramic disc picofarads, and power supply nanofarads.
Inductance
Translate transformer winding henrys, choke inductor millihenrys, and RF tuning microhenrys.
American Wire Gauge (AWG) Specification Table
Standard solid and stranded copper conductor specifications at 20°C, including cross-sectional circular mils, resistance per 1,000 feet, and NEC Table 310.16 ampacity thresholds.
| AWG Size | Diameter (mm) | Diameter (in) | Area (mm²) | Circular Mils | Resistance / 1,000 ft (Ω) | 60°C Ampacity | 75°C Ampacity | 90°C Ampacity | Typical Circuit Application |
|---|
Conversion Formulas & Engineering Constants
Mechanical Horsepower to Watts
1 HP = 745.699872 Watts
Imperial mechanical horsepower rating widely used for electric motor nameplates and pump sizing.
Thermal BTU/hr to Electrical Watts
1 W = 3.412142 BTU/hr
Essential conversion for HVAC heat pump sizing, server room thermal loads, and refrigeration compressors.
Kilowatt-Hours to Joules
1 kWh = 3,600,000 Joules (3.6 MJ)
SI metric energy equivalence between physical work (Watt-seconds) and residential electrical power utility metering.
Rotational RPM to Frequency
Frequency (Hz) = (RPM × Poles) / 120
Synchronous speed relationship between AC electrical grid frequency and induction motor shaft RPM.