Calculator name  Summary 
Ohm's law (resistance) 
Calculates the resistance from the voltage and current.

Ohm's law (voltage) 
Calculates the voltage from the current and resistance.

Ohm's law (current) 
Calculates the current from the voltage and resistance.

Capacitance of capacitor 
Calculates the capacitance of the capacitor from the plate area, distance between plates and relative permittivity. 
Resistance in series and parallel 
Calculates the total resistance of two resistors in series and parallel.

Capacitance in series and parallel 
Calculates the total capacitance of two capacitors in series and parallel.

Inductance in series and parallel 
Calculates the total inductance of two coils in series and parallel.

Impedance of R and L in series 
Calculates the impedance of the resistor and inductor in series. 
Impedance of R and L in parallel 
Calculates the impedance of the resistor and inductor in parallel. 
Impedance of R and C in series 
Calculates the impedance of the resistor and capacitor in series. 
Impedance of R and C in parallel 
Calculates the impedance of the resistor and capacitor in parallel. 
Impedance of L and C in series 
Calculates the impedance of the inductor and capacitor in series. 
Impedance of L and C in parallel 
Calculates the impedance of the inductor and capacitor in parallel. 
Impedance of R, C and L in series 
Calculates the impedance of the resistor, capacitor and inductor in series. 
Impedance of R, C and L in parallel 
Calculates the impedance of the resistor, capacitor and inductor in parallel. 
Impedance of RC and RL in parallel 
Calculates the impedance of the resistor and capacitor in series (RC), and the resistor and inductor in series (RL), in parallel. 