dB Calc
Black Cat Systems Reference iPhoneiPadiPod touch
dB Calc is a paid Reference app for iPhone and iPad by Black Cat Systems. Rated 5.0/5 from 5 ratings. Requires iOS 15.6. Updated July 9, 2025.
- Rating
- 5.0
- 5 ratings
- Price
- 0.99 USD
- on the App Store
- Size
- 1 MB
- Age 4+
- Updated
- Jul 9
- 2025 · v3.0
Screenshots
About dB Calc
Need to quickly convert between various RF signal measurement units? dB Calc performs lots of decibel related conversions: Decibel / Neper / Ratio Conversions: Enter in either the dB, Np (nepers), power or voltage ratio, and the other values will be calculated. Decibel / Power / Voltage Calculations: Enter in the one known value, and the others will be calculated. Select the correct units before entering in the value. You can change the units of the displayed (calculated values) by selecting the new units. Enter in the resistance before entering in the known value. The following units are available: dBmW - dB ref to 1 mW power dBuV - dB ref to 1 uV dBu - dB ref to 0.7746 V (audio) dBV - dB ref to 1 V uW - microwatts mW - milliwatts W - watts uV - microvolts mV - millivolts V - volts RMS Waveforms Conversions: Conversion between rms, peak, peak-peak voltage and current values for a user entered resistance. Sine, square, and triangle waveforms are supported. Get your copy of dB Calc today, and take the hassle out of dB related conversions.
Ratings & reviews
5.0
5 ratings
What’s new
Version 3.0 · Updated July 9, 2025
Changes and improvements for new iOS updates.
App privacy
The developer, Black Cat Systems, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| dB Calc | 5.0 / 5 (5 ratings) | 0.99 USD | July 9, 2025 | |
| CatalogueMessier | – | 0.99 USD | Sep 15, 2026 | Compare |
| RST Decoder Pro | 5.0 / 5 (1) | 1.99 USD | Aug 30, 2026 | Compare |
| Avionics Pro | 5.0 / 5 (2) | Free | Aug 1, 2026 | Compare |
| Ham Radio US Band Plan | 4.7 / 5 (6) | Free | Apr 19, 2026 | Compare |
| Electronics Tools & Calc Pro | 5.0 / 5 (5) | 4.99 USD | Oct 2, 2026 | Compare |
| Resistor Brain | 3.0 / 5 (2) | Free | Aug 21, 2024 | Compare |
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