Filter calculator - RC RL RLC & active filter

Anas Abubakar Tools In-app purchases Contains ads

Design passive RL, RC, LC, Butterworth, Bessel, Chebyshev, and active filter

Rating: 4.6; 237 ratings
Downloads: 25.9K+; on Google Play
Price: Free; In-app purchases
Updated: Nov 4; 2026 · v1.16

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Screenshots

About Filter calculator - RC RL RLC & active filter

with filter calculator pro you can calculate the parameters or components of a passive RL, RC, LC, Butterworth, Bessel, Chebyshev, and active filter.

Filter calculator has the following features:
RC filter calculations
RL filter calculations
LC filter calculations
Passive Butterworth filter calculations (2,3,4, and 5 pole Butterworth filter)
Active Butterworth, Bessel, Chebychev filter calculations
Notch filter
Passive cross over design
Band pass filter

You can choose to calculate the parameters of the filter or calculate the circuit components.

What’s new

Version 1.16 · Updated November 4, 2026

Added 6 new filter design tools: • MFB band-pass filter – single op-amp design. • Parametric EQ – adjustable frequency, Q and boost/cut. • Low-shelf and high-shelf EQ filters. • First-order all-pass phase shifter. • Elliptic/Cauer filter – specification-based design. • Band-pass and band-stop synthesis from frequency specifications.

User reviews

rajkishore mundari

Good usefull

Mahabir Prasad

Very handy for hobby people. It will be nice to add plots

Mahmoud Ali

Cool

Ohm Charan

Do you have active low pass filter calculator?

Sajjad Hajkhaleghi

Soooo gooood

BENARD SIKUKU

Nice app

App details

Filter calculator - RC RL RLC & active filter is a free Tools app for Android with 10,000+ installs on Google Play and a 4.6/5 average rating from 237 ratings. It was released on April 10, 2019 and last updated on November 4, 2026. It's developed by Anas Abubakar. It requires Android 7.0 or later. The app contains ads and offers in-app purchases.

Category: Tools
Rating: 4.6 / 5 (237)
Installs: 25,959
In-app purchases: Yes
Ads: Contains ads
Version: 1.16
Requires Android: 7.0
Content rating: Everyone
Released: April 10, 2019
Last updated: November 4, 2026
Developer: Anas Abubakar

View on Google Play

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Looking for apps like Filter calculator - RC RL RLC & active filter? Here are 6 similar Android apps on Google Play. The highest rated is Basic Electronics: Study guide (4.3/5), and 5 of the 6 are free to download.

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