Editorial Policy

What each page contains

Tool pages put the calculator or converter first, followed by how it works, the formula, a worked example, reference tables where useful, limitations and frequently asked questions.

Original content

Explanations, examples and tables are written for this site. We do not copy other publishers' text. We do not claim professional credentials or cite sources we have not used.

Review before publishing

Before a tool page is published, its worked example is checked against the tool's actual result and its formulas against the references named on the page. A page is published only when its tool works; unfinished tools are not linked and are not listed for search engines.

Corrections

If you find an error, email bjamidan@gmail.com. Reports are reviewed, and when an error is confirmed the calculation or text is corrected and the related tests are updated.

Advertising independence

The site does not currently show advertising. If advertising is introduced, ads will be labeled, kept apart from inputs and results, and will not influence calculations or content.