LCR Series Resonant Circuits Online Calculator

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LCR Series Resonant Circuit Calculator

Select what you want to solve for, enter the known values, and hit Calculate.

SOLVE FOR

f_r — Frequency

L — Inductance

C — Capacitance

Resonant Frequency (f_r)

Hz kHz MHz

Inductance (L)

mH µH nH

Capacitance (C)

µF nF pF

f_r = 1 / ( 2π · √(L · C) )

RESULT

— enter values and calculate —

At resonance, X_L = X_C — minimum impedance, maximum current. Used in RF filters, oscillators & antenna tuners.

Press Enter in any input field to calculate instantly.