# How to calculate the resonance frequency of this oscillator?

I created the following square wave oscillator in LTspice, which works fine. But I'm not sure how to choose the values of the components. I manually adjusted the values of C1, C2 and L1 until I got a frequency of approx. 1MHz.

Is it possible to calculate the resonance frequency similar to this? $$f_0=\frac{1}{2\cdot \pi \cdot \sqrt{L\cdot C}}$$