RC Circuit Calculator

Calculate Time Constant (τ) and Voltage.

Circuit Values

Resistance (Ω)

Capacitance (µF)

Source Voltage (V) [Optional]

Time (s) [Optional]

Time Constant (τ)

Voltage at Time t (Charging)

Voltage at Time t (Discharging)

Formula: τ = R * C

V(t) = V₀ * (1 - e^(-t/τ)) [Charging]

V(t) = V₀ * e^(-t/τ) [Discharging]