dB Calc

dB Calc

dB / Neper / Power / Voltage


2.0for iPhone, iPad and more
3 Ratings
Black Cat Systems
1.4 MB
May 4, 2022
Update Date
Age Rating
Age Rating
Apps in this category do not contain restricted content.
Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.
Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.
You must be at least 17 years old to access this App.
Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.
dB Calc Screenshots
dB Calc poster
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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.
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What's New in the Latest Version 2.0

Last updated on May 4, 2022
Old Versions
Updates for latest iOS
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Version History
May 4, 2022
Updates for latest iOS
May 9, 2017
Updates for iOS 10.3
Oct 28, 2013
Updates for iOS 7
Jan 4, 2013
Updates for iOS 6
Jun 26, 2010
Added RMS (root mean squared) calculations for sine, square, and triangle waveforms.

Universal app for the iPad.
Sep 2, 2009
Changing the resistance will now update the power, voltage, and decibel fields.
Apr 30, 2009
Added conversions to and from dBmV
Jan 27, 2009

dB Calc FAQ

Click here to learn how to download dB Calc in restricted country or region.
Check the following list to see the minimum requirements of dB Calc.
Requires iOS 9.0 or later.
Requires iPadOS 9.0 or later.
iPod touch
Requires iOS 9.0 or later.
dB Calc supports English

dB Calc Alternative

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