Cross-platform Python tkinter GUI that converts between Voltage Root Mean Square (V-RMS), Voltage peak (Vp), Voltage peak to peak (Vpp), dBu (decibel unloaded), dBV (decibel Volt) and dBm (decibel milliwatt).
Run voltage-db_convert.pyw in the src folder to launch the GUI.
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dBu/dbV are logarithmic voltage ratios with references of 0.7745966692v / 1v
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The reference of 0.7745966692v comes from √(0.001W * 600 ohms)
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dBm is a logarithmic power ratio with reference of 1mW; requires impedance Z (default 600ohms)
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Vp = Vpp / 2 -OR- Vp = Vrms * √2
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Vpp = Vp * 2 -OR- Vpp = 2 * Vrms * √2
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Vrms = Vp * (1 / √2) -OR- Vrms = (Vpp / 2) * (1 / √2) -OR- Vrms = 0.7745966692 * 10 ^ (dBu / 20)
-OR- Vrms = 10 ^ (dBV / 20) -OR- Vrms = √((0.001 * Z) * 10 ^ (dBm / 10))
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dBu = 20 * log(Vrms / 0.7745966692)
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dBV = 20 * log(Vrms)
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dBm = 10 * log((Vrms ^ 2) / (0.001 * Z))
Requires Python to be installed to work (at least v3.10). No additional packages required in Windows.
For Linux, requires a distribution with a GUI. Some Linux distributions may require tkinter to be installed separately, for example:
- Ubuntu:
sudo apt install python3-tk - CentOS:
sudo yum install python3-tkinter
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If you want to build this script into a portable Windows executable so the user doesn't need to install Python:
python -m pip install pyinstaller -
Run build.cmd to create the executable
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Alternatively, browse to this folder in terminal / command prompt, and execute:
python -m PyInstaller --add-data "src\arrows.ico:." --icon=src\arrows.ico --onefile --clean --name=Voltage-dB-Converter -w src\voltage-db_convert.pyw -
The built exe is located in the dist folder.
NOTE: If you are having trouble running the exe, add --console and --debug=all to the end of the build command. Then run the exe from terminal / command prompt to view the debug / error output.
The arrows icon was created with Inkscape