TheCircuitDogAnalog Design
LC Resonant Frequency Calculator
Find the natural resonant frequency of an ideal inductor-capacitor combination.
Enter the values above and select Calculate result.
Formula
f₀ = 1 / (2π√(LC))
Worked example
10 µH and 100 nF give an ideal LC resonant frequency of about 159.15 kHz.
Engineering notes
Series resistance, parasitic inductance/capacitance, loading and component tolerance shift real-world resonance.
Always compare calculated values with the actual component datasheet, tolerance stack-up, operating temperature and circuit conditions before applying them to hardware.