
A unit converter with a clean category menu — pick length, weight, temperature or another category, then convert with a couple of taps or the /units command. Interface in English and Russian.
Converter Bot leans on menus instead of memorized syntax. Send /start and it walks you through /categories to pick a measurement type, /units to see the exact codes it accepts inside that category, and /examples if you want to see a sample query before typing your own. It is built by Onix-Systems, a software development studio, rather than an anonymous side project, which shows in how deliberately the command set is laid out.
When you send /start, the welcome message offers a choice of interface language: English or Russian.
It trades a little speed for that structure: there is no inline mode, so you need to open a chat with the bot rather than firing off a query from wherever you are typing. There is also no visible monthly-user count on its public profile, so it is hard to say how many people actually rely on it day to day — but the documented commands and the identifiable company behind it are reassuring signs for a niche utility bot.
/startShow the welcome message and language options/categoriesList all available measurement categories/unitsList the unit codes accepted inside the current category/examplesShow a sample conversion queryFree
| Criterion | Weight | Points | |
|---|---|---|---|
| Functionality | 25 | 7 / 10 | |
| Reliability & speed | 15 | 6 / 10 | |
| Popularity & trust | 15 | 4 / 10 | |
| Price & free tier | 10 | 9 / 10 | |
| Usability | 10 | 8 / 10 | |
| Safety & privacy | 10 | 8 / 10 | |
| Freshness | 5 | 5 / 10 | |
| Localization | 5 | 10 / 10 | |
| No intrusive ads | 5 | 9 / 10 | |
| Score | 100 | 69.5 |
English and Russian, both available directly in the bot's menus and commands.
Pick a category with /categories, then send /units to see every accepted code inside it.