RC Time Constant Calculator
Compute the time constant (τ = RC) for an RC circuit
RC Time Constant Calculator
Compute the time constant (τ = RC) for an RC circuit
Formula
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The time constant (τ) of an RC circuit is calculated by multiplying the resistance (R) by the capacitance (C). It represents the time it takes for the capacitor to charge to approximately 63.2% of its final value or discharge to approximately 36.8% of its initial value. Charging to 99% takes about 5τ, and discharging to 1% also takes about 5τ.