About

Allcalcy is an independent publisher of free calculators and practical browser-based tools. Our aim is to make a calculation easy to perform, easy to inspect, and difficult to misunderstand.

What we publish

The collection covers personal finance, health, property, insurance, everyday life, and software development. A calculator page should explain its inputs, formula or model, assumptions, worked example, and important limitations—not merely display a number.

How calculators are checked

• Calculation logic is separated from the page interface and covered by automated tests.
• Known examples, boundary cases, invalid inputs, dates, units, and rounding behavior are tested where relevant.
• Pages identify the model being used and link to supporting sources when the result depends on an external standard or rule.
• Tools involving health, law, tax, insurance, or personal finance explain that an estimate cannot replace individualized professional advice.

Our full process is described on the methodology page, and our rules for selecting and presenting information are in the editorial standards.

Who publishes the site

Allcalcy is the publisher. We do not attach invented personal biographies, professional credentials, or expert-review claims to our pages. When a page has not been reviewed by a licensed professional, we say so through its scope and limitations rather than suggesting otherwise.

Your privacy

Calculator inputs are processed in your browser. Privacy-sensitive tools are designed so entered values do not need to be sent to our servers. See the privacy policy for details about site analytics, storage, and third parties.

Corrections and questions

If you find a questionable result, outdated source, or unclear explanation, please tell us. We investigate reproducible reports and document material corrections according to ourcorrections policy.

Contact

Send corrections, questions, or calculator suggestions through the contact page.