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
Wire and winding calculations:
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:
Standard EIA Decade Values of capacitors - decade 100 to 1000 pF
| E6 | E12 | E24 |
|---|---|---|
| 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
| E6 | E12 | E24 |
|---|---|---|
| 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.