Editor, Biggest Calculator Hub
Ian Pilnik is the editor pen name for Biggest Calculator Hub. The editor edits and checks the site's calculators and the sources behind them. Nothing on this page claims a professional licence or credential, and nothing on the site is financial, tax or legal advice.
Each calculator starts from a published formula or a primary source such as IRS publications or Federal Reserve data. Results are tried against known cases before a calculator ships. Rates, limits and tax figures are checked against those sources when they change.
A "Last reviewed" date appears on a calculator page only after that page has actually been reviewed. Pages that have not been reviewed show the byline without a date. See how we verify every formula for the full method.
Spotted something wrong? Use the contact page.
