About Calculandia

Calculandia builds free calculators on verified, always-current official data — from take-home salary to compound interest. Every tool runs instantly in your browser and no personal data is required to use it.

How we keep results accurate

Calculators that depend on legislation (tax tables, social-security rates) are versioned by year and reviewed against official sources whenever rules change. Each page states the tables and laws it applies, and includes a disclaimer about the limits of any estimate.

How these calculators are built

Calculandia is built by a small team using AI-assisted research and development under a strict editorial protocol: every rate, table and legal rule is verified against primary sources (central banks, tax authorities, official gazettes, manufacturer datasheets) before publication, the sources are cited on each page along with the date the data was last verified, and every formula is validated against hand-computed test cases. A monthly review checks all volatile data — interest rates, indices, tariffs and legal tables — against the current official values.

Contact

Found an error or want to suggest a calculator? Email us at bolzi.gabriel@gmail.com or visit the contact page.