Step into the electrifying realm of Electrical Units Online. From the spark of volts to the resistance of ohms, we demystify the complex tapestry of electrical measurements. A haven for learners and experts, we light the way to understanding every unit!
Unit Name  Unit Symbol  Quantity 

Ampere (amp)  A  Electric current (I) 
Volt  V 
Voltage (V, E) Electromotive force (E) Potential difference (Δφ) 
Ohm  Ω  Resistance (R) 
Watt  W  Electric power (P) 
Decibelmilliwatt  dBm  Electric power (P) 
DecibelWatt  dBW  Electric power (P) 
VoltAmpereReactive  var  Reactive power (Q) 
VoltAmpere  VA  Apparent power (S) 
Farad  F  Capacitance (C) 
Henry  H  Inductance (L) 
siemens / mho  S  Conductance (G) Admittance (Y) 
Coulomb  C  Electric charge (Q) 
Amperehour  Ah  Electric charge (Q) 
Joule  J  Energy (E) 
Kilowatthour  kWh  Energy (E) 
Electronvolt  eV  Energy (E) 
Ohmmeter  Ω∙m  Resistivity ( ρ) 
siemens per meter  S/m  Conductivity ( σ) 
Volts per meter  V/m  Electric field (E) 
Newtons per coulomb  N/C  Electric field (E) 
Voltmeter  V⋅m  Electric flux (Φ _{e}) 
Tesla  T  Magnetic field (B) 
Gauss  G  Magnetic field (B) 
Weber  Wb  Magnetic flux (Φ _{m}) 
Hertz  Hz  Frequency (f) 
Seconds  s  Time (t) 
Meter / metre  m  Length (l) 
Squaremeter  m ^{ 2 }  Area (A) 
Decibel  dB  
Parts per million  ppm 
Prefix

Prefix Symbol 
Prefix factor 
Example 

pico  p  10 ^{ 12 }  1pF = 10 ^{ 12 }F 
nano  n  10 ^{ 9 }  1nF = 10 ^{ 9 }F 
micro  μ  10 ^{ 6 }  1μA = 10 ^{ 6 }A 
milli  m  10 ^{ 3 }  1mA = 10 ^{ 3 }A 
kilo  k  10 ^{ 3 }  1kΩ = 1000Ω 
mega  M  10 ^{ 6 }  1MHz = 10 ^{ 6 }Hz 
giga  G  10 ^{ 9 }  1GHz = 10 ^{ 9 }Hz 
Understanding Electrical Units
Volt (V):
A volt signifies voltage. It's defined as the energy usage of 1 joule when 1 coulomb of electric charge circulates within a circuit. 1V = 1J/C
Ampere (A):
Ampere measures electrical current, quantifying the electrical charge flowing in a circuit every second. 1A = 1C/s
Ohm (Ω):
Ohm represents electrical resistance, calculated as: 1Ω = 1V/1A
Watt (W):
Watt evaluates electric power, denoting the energy consumption rate. 1W = 1J/s = 1V ⋅ 1A
Decibelmilliwatt (dBm):
dBm is a power unit, gauged on a logarithmic scale, anchored to 1mW. 10dBm = 10 ⋅ log10(10mW/1mW)
DecibelWatt (dBW):
dBW also measures electric power but references 1W. 10dBW = 10 ⋅ log10(10W/1W)
Farad (F):
Farad assesses capacitance, indicating electric charge storage per volt. 1F = 1C/1V
Henry (H):
Henry is synonymous with inductance. 1H = 1Wb/1A
Siemens (S):
Siemens gauges conductance, essentially being the antithesis of resistance. 1S = 1/1Ω
Coulomb (C):
Coulomb stands for electric charge, equivalent to 6.238792×10^18 electron charges.
Amperehour (Ah):
This unit denotes electric charge, signifying the charge flowing in a circuit with a 1ampere current over 1 hour. 1Ah = 1A ⋅ 1 hour = 3600C
Tesla (T):
Tesla quantifies the magnetic field. 1T = 1Wb/1m^2
Weber (Wb):
Weber stands for magnetic flux. 1Wb = 1V ⋅ 1s
Joule (J):
Joule is an energy measure. 1J = 1 kg ⋅ m^2/s^2
Kilowatthour (kWh):
This unit measures energy. 1kWh = 1kW ⋅ 1h = 1000W ⋅ 1h
Kilovoltamps (kVA):
Kilovoltamps quantify power. 1kVA = 1kV ⋅ 1A
Hertz (Hz):
Hertz determines frequency, measuring cycle counts each second. 1 Hz = 1 cycle/s
Electrical Units Online provides a comprehensive overview of various electrical units like volts, amps, ohms, and watts. It serves as a reference for their definitions, relationships, and applications in realworld scenarios.