About VELNARO
VELNARO exists to answer one question: “I need something calculated, converted, generated or checked — where can I do it right now?”
Free to use
Every tool on VELNARO is free, with no paywall and no trial.
No registration
Open a tool and use it. We never put a sign-up wall in front of an answer.
Fast results
Calculations run in your browser, so results appear as you type.
Mobile friendly
Designed for phones first, and comfortable on desktop and tablets.
Privacy conscious
Most tools never send your data anywhere — it stays on your device.
Accurate calculations
Standard formulas and exact unit definitions, shown on every page.
Regularly updated
New tools, guides and improvements ship continuously.
Works offline
Install VELNARO and keep using your favourite tools without a connection.
What we are building
A single place for the everyday maths of real life. Today that means 264 working tools across 11 categories — from percentage and mortgage calculators to currency conversion, QR codes and packing lists. The architecture is designed so adding a new tool is a data change, not a rebuild, which is how VELNARO grows towards hundreds and eventually thousands of genuinely useful tools without becoming a content farm.
How VELNARO works
The principles behind the product, and the limits we set ourselves.
Last updated: 23 September 2026
Calculations run on your device
Almost every tool on VELNARO runs entirely in your browser. The moment you type a number, the calculation happens on your own device — nothing is uploaded, queued or stored. That is why results appear instantly, why the tools keep working offline, and why entering a salary or a medical figure here does not send it anywhere.
The exceptions are stated on the page itself: the currency converter fetches live exchange rates from our server (it sends only the request, not your amount), and the IP information tool reads the address your connection presents. Neither stores what you entered.
Every tool shows its working
A calculator that gives you a number without telling you how it got there is asking you to trust it blindly. Every VELNARO tool displays its formula, a worked step-by-step solution where relevant, and a realistic example, so you can check the answer rather than simply accepting it.
No registration, no paywall
You never need an account to use a tool. If optional accounts arrive later for saving favourites or calculations, the free tools will not move behind them.
Honest limitations
We do not publish invented statistics, fake reviews, or claims about users we cannot evidence. Where a tool relies on external data — exchange rates being the obvious one — we show the timestamp and say plainly that rates are informational and change constantly.
Results are provided for general information. For tax, legal, medical or significant financial decisions, use the working shown on the page as a starting point and confirm with a qualified professional.
How the site is funded
The service is free because it is supported by advertising. We place adverts between content blocks rather than over controls or inside input fields, we never use misleading buttons, and the site remains fully usable if adverts are blocked. You can read more on our advertising page.
Get in touch
If a tool is wrong, missing, or could be clearer, tell us. Reports of calculation errors are treated as urgent, and suggestions for new tools are how the roadmap is built.
Email hello@velnaro.com or use the contact page.