SI Units

Commonly Used Units for Electronics

Physical QuantitySI UnitSI AbbreviationSymbol
in equation
CapacitancefaradFC
Charge (electric)coulombCq
Conductance (electrical)siemensSG
Current (electric)ampereAI
Energy, Work, HeatjouleJE, W, Q
Flux (magnetic)weberWbΦ
Inductance (electrical)henryHL
Induction (magnetic)teslaTB
Magnetic fluxweberWbΦ
Resistance (electrical)ohmΩR
PowerwattWP
VoltagevoltVV`

Complete SI Unit List

Physical QuantitySI UnitSI AbbreviationSymbol
in equation
Amount of Substancemolmoln
Angleradianradrad
CapacitancefaradFC
Catalytic Activitykatalkatkat
Charge (electric)coulombCq
Conductance (electrical)siemensSG
Current (electric)ampereAI
Energy, Work, HeatjouleJE, W, Q
Flux (magnetic)weberWbΦ
FrequencyhertzHzf
IlluminanceluxlxEv
Inductance (electrical)henryHL
Induction (magnetic)teslaTB
Lengthmetermr(x,y,z)
Luminous intensitycandelacdIv
Luminous fluxlumenlmΦv
Magnetic fluxweberWbΦ
Masskilogramkgm
PressurepascalPaP
RadioactivitybecquerelBqdN/N
Resistance (electrical)ohmΩR
Solid AnglesteradiansrΩ
TemperaturekelvinKT
Timesecondst
PowerwattWP
VoltagevoltVV`