LC Resonance Calculator Resonant Frequency Calculator Please Select the Required Parameters or or Description This calculator is designed to determine the resonant frequency of a given LC circuit. An LC circuit is primarily a configuration involving an inductor and a capacitor. Significant Figures>>> The default numeric display will be in 5 significant figures. For easier understanding, digits higher than 0.001 and lower than 1000 cannot be considered within scientific notations. User may select and alter the given options by switching the figure in the box above as desired. Typing a zero enables formatting all the entered parameters.