๐ RC Time Constant Calculator
Calculate ฯ, cutoff frequency, and charge/discharge voltage at any time step.
RC Parameters
ฯ = R ร C | fc = 1 / (2ฯ ร R ร C)
โ Please enter valid R and C values.
Charge / Discharge Voltage Table
Charging: V(t) = Vs ร (1 โ eโt/ฯ) |
Discharging: V(t) = V0 ร eโt/ฯ
| Time Constant (ฯ) |
Time (s) |
Charge % |
Charge V |
Discharge V |
Progress |
๐ก A capacitor is considered fully charged after 5ฯ (~99.3%). Most designs use 3ฯ (~95%) as a practical threshold.