zet4u – the world, made for you. We build free tools for the questions people ask every day: how much is this in another currency, what will my salary be after tax, what is 20% of this price. Alongside them, classic games for the moments in between.
What we promise
- It works offline. Open the site once with internet and it saves itself on your device – on a plane, in the mountains or abroad without data, it keeps working.
- Official figures, with their dates. Rates and thresholds come from official sources, named on every page, and every result shows how current its data is.
- Private by design. Calculations run in your browser; what you type is never sent anywhere.
- Free, with no account. No sign-up, no paywall.
- Written to be useful. Every page explains the method, shows worked examples and points out the mistakes people make.
Who is behind it
zet4u.com is run by SVZET SRL. The website is built and maintained by Enic Web Design. We are adding new calculators, converters and games all the time.
Tell us what you need
Missing a calculator, found a mistake, or have an idea? Write to [email protected].