About Reeliy
Reeliy is a free library of calculators, unit converters and everyday tools. Our aim is simple: give a correct answer fast, show exactly how it was worked out, and never ask for anything in return.
What makes Reeliy different
- Every result shows its working. We display the formula and the steps using your numbers, so you can check the answer, learn the method, or show it to someone else.
- Private by design. The math runs in your browser. The values you type into a calculator are not sent to our servers.
- Local where it matters. Alongside global tools, we build calculators for rules that are specific to the UAE and the wider Gulf — such as end-of-service gratuity, zakat and GCC VAT rates — and cite the official sources.
- Fast and lightweight. No sign-ups, no pop-up walls and no heavy scripts. Pages are static and served from a global edge network.
How we build and check tools
Each tool starts from its defining formula or official rule — for example, the 1959 international definition of the inch (exactly 2.54 cm), or the relevant article of a law. The calculation code is separated from the page and covered by automated tests that compare results against independently worked reference values. Pages that touch money, health or legal rights link to the official sources we relied on and explain the limits of the calculation. Read the full editorial and testing policy.
Who runs Reeliy
Reeliy.com is owned and operated by Badar Al Raisi, based in Muscat, Oman. You can reach us at support@reeliy.com.
How Reeliy is funded
Reeliy is free to use and may be supported by advertising. Ads are clearly labeled, are kept separate from calculator results, and never influence what a tool calculates or recommends. We do not sell personal data. See our privacy policy and cookie policy for details.
Found a mistake?
Accuracy is the whole point of this site. If a result looks wrong or an explanation is unclear, please contact us with the page address and the numbers you used. We review every report and correct errors promptly.