The sound unit converter, which realizes the conversion between different sound units, currently includes 9 sound units and 72 conversion relationships.
The sound units are as follows:
| Sound unit | Abbreviation |
| Bel | B |
| Decibel | dB |
| Neper | Np |
| Millidecibel | mdB |
| Centidecibel | cdB |
| Dekadecibel | dadB |
| Kilodecibel | kdB |
| Megadecibel | MdB |
| Gigadecibel | GdB |
