Capacitor Voltage Calculator – Charging and Discharging

Time constant

The RC time constant denoted by τ (tau), is the time required to charge a capacitor to 63.2% of its maximum voltage or discharge to 36.8% of the maximum voltage.

τ = ms


Capacitor Charging

I = mA

Instantaneous current at given time value

Vc = V

Instantaneous voltage at given time value

Capacitor Discharging

Voltage at time t=0

Vc =

I = mA

Instantaneous current at given time value