⚡
Instant result
Enter the data and press the button to do the calculation.
Online Calculator
RLC resonance calculator
Enter inductance and capacitance to calculate f₀ = 1/(2π√LC).
Information
🔒
Local processing
The values are processed directly in your browser.
💸
Free
No registration, external API or subscription required.
Frequently asked questions
What's the resonance formula?
f₀ = 1/(2π√LC).
Does resistance change the basic formula for f₀?
In the ideal model of series resonance used here, the basic frequency is obtained from L and C.
What happens at resonance?
Inductive and capacitive reactances have equal magnitude.
What units does it use?
Millihenries for L and microfarads for C.