online electronic calculator - Ohm's law and much more

LC resonant frequency calculator

Online calculator for formulas used in electronic circuit design and electrical engineering.

Basic electric calculations:

Ohm's Law, Ohm's Law with power, DC power, AC real power, LC resonant frequency, Capacitor charging/discharging, Capacitive reactance, Capacitive current + reactive power, Capacitor energy, Capacitor Δ energy, RC discharging, Inductor square pulse, Inductive reactance, Inductive current + reactive power, Inductor energy, 2 parallel resistors, 3 parallel resistors, System bandwidth, Bandwidth ↔ rise time

Wire and winding calculations:

Diameter ↔ cross section ↔ AWG, Wire resistance, Wire weight, Current density, Wire R thermal drift

Calculate LC resonant frequency: 330pF, 47uH, MHz


Using this calculation (Thompson's formula), you can calculate the resonant frequency of an LC resonant circuit (parallel inductor and capacitor). You can also calculate the capacitance knowing the inductance and the desired frequency, or calculate the inductance knowing the capacitance and the desired frequency.   f0 = 1 / (2π√LC)

Enter any 2 values, the 3rd one will be calculated:

Capacitance: -0.1 +0.1 -1 +1 -10 +10 -100 +100
Inductance: -0.1 +0.1 -1 +1 -10 +10 -100 +100
Frequency: -0.1 +0.1 -1 +1 -10 +10 -100 +100
Output metric prefix:   Automatic    User-selected
 

Standard EIA Decade Values of capacitors - decade 100 to 1000 pF

E6E12E24
100 pF
150 pF
220 pF
330 pF
470 pF
680 pF
100 pF, 120 pF
150 pF, 180 pF
220 pF, 270 pF
330 pF, 390 pF
470 pF, 560 pF
680 pF, 820 pF
100 pF, 110 pF, 120 pF, 130 pF
150 pF, 160 pF, 180 pF, 200 pF
220 pF, 240 pF, 270 pF, 300 pF
330 pF, 360 pF, 390 pF, 430 pF
470 pF, 510 pF, 560 pF, 620 pF
680 pF, 750 pF, 820 pF, 910 pF

Other capacitance decades:

1 - 10 pF, 10 - 100 pF, 100 - 1000 pF, 1 - 10 nF, 10 - 100 nF, 100 - 1000 nF, 1 - 10 uF, 10 - 100 uF, 100 - 1000 uF, 1 - 10 mF, 10 - 100 mF, 100 - 1000 mF, 1 - 10 F, 10 - 100 F, 100 - 1000 F,

Standard EIA Decade Values of inductors - decade 10 to 100 uH

E6E12E24
10 uH
15 uH
22 uH
33 uH
47 uH
68 uH
10 uH, 12 uH
15 uH, 18 uH
22 uH, 27 uH
33 uH, 39 uH
47 uH, 56 uH
68 uH, 82 uH
10 uH, 11 uH, 12 uH, 13 uH
15 uH, 16 uH, 18 uH, 20 uH
22 uH, 24 uH, 27 uH, 30 uH
33 uH, 36 uH, 39 uH, 43 uH
47 uH, 51 uH, 56 uH, 62 uH
68 uH, 75 uH, 82 uH, 91 uH

Other inductance decades:

1 - 10 nH, 10 - 100 nH, 100 - 1000 nH, 1 - 10 uH, 10 - 100 uH, 100 - 1000 uH, 1 - 10 mH, 10 - 100 mH, 100 - 1000 mH, 1 - 10 H, 10 - 100 H, 100 - 1000 H,

Some common standard frequencies:

Traction
frequency
Mains
frequency
Ripple
frequency
Local
frequency
AM IF
frequency
FM IF
frequency
RFID, EAS
tag frequency
Microwave
frequency
16.666Hz
25Hz
50Hz
60Hz
100Hz
120Hz
400Hz
262.5kHz
450kHz
455kHz
460kHz
465kHz
467kHz
470kHz
475kHz
480kHz
10.7MHz
125kHz
134kHz
8.2MHz
13.56MHz
433MHz
868MHz
915MHz
2.45GHz
2.455GHz

LC resonant frequency formula says:

•The resonant frequency of a 330pF (three hundred and thirty picofarads) capacitor and 47uH (fourty-seven microhenrys) inductor is 1.27795109MHz (one point two seven seven nine five one zero nine megahertz).
•For a 1.27795109MHz (one point two seven seven nine five one zero nine megahertz) resonance, a 330pF (three hundred and thirty picofarads) capacitor needs a parallel 47uH (fourty-seven microhenrys) inductor.
•A 47uH (fourty-seven microhenrys) inductor needs a 330pF (three hundred and thirty picofarads) capacitor to resonate at 1.27795109MHz (one point two seven seven nine five one zero nine megahertz) frequency (or to compensate the inductive power at that frequency).



This is a simple online calculator for formulas used in electronic engineering and design.

This online calculator is for reference only. I do not guarantee it to work correctly. You use this at your own risk only.