Capacitor Charge Calculator

Calculate capacitor charging and discharging curves, time constant, and voltage at any time in RC circuits.

Charge/Discharge Mode

V(t) = Vs(1 - e^(-t/RC))

tau = RC (Time Constant)

Capacitance

Resistance (ohms)

Source Voltage (V)

Time (seconds)

Target Percentage (%)

100.0000

Time Constant (ms)

11.919

Voltage @ t (V)

99.3%

Charged

0.081

Current @ t (mA)

63.2% (1 tau)100.0000 ms

95% (3 tau)300.0000 ms

99% (5 tau)500.0000 ms

Target 63.2%99.9672 ms

Charge @ t1191.9145 uC