Calculator for LC tank/ tuned circuits. Calculate L,C or f. \(f = { 1\over 2\pi\sqrt{LC}}\) \(L = { 1\over (f2\pi)^2C }\) \(C = { 1\over (f2\pi)^2L }\) Inductance (L) H mH uH Capacitance (C) F uF pF Frequency (ƒ) You might also be interested in this.