RL cutoff frequency calculator
Calculate the RL cutoff frequency of a resistor-inductor low-pass filter from its resistance and inductance.
Σ
TechOverflow calculators:
You can enter values with SI suffixes like 12.2m (equivalent to 0.012) or 14k (14000) or 32u (0.000032).
The results are calculated while you type and shown directly below the calculator, so there is no need to press return or click on a Calculate button.
You can enter values with SI suffixes like 12.2m (equivalent to 0.012) or 14k (14000) or 32u (0.000032).
The results are calculated while you type and shown directly below the calculator, so there is no need to press return or click on a Calculate button.
Ω
⚠
H
⚠
The RL cutoff frequency is the frequency at which an RL low-pass filter attenuates the signal by 3dB (approximately 70.7% of the input amplitude).
$$ f_c = \frac{R}{2\pi L} $$where $R$ is the resistance in ohms and $L$ is the inductance in henries. The result is in hertz.
See also: How to compute RL cutoff frequency in Python using UliEngineering
Check out similar posts by category:
Calculators, Electronics
If this post helped you, please consider buying me a coffee or donating via PayPal to support research & publishing of new posts on TechOverflow