Terms of service

Using Calzento

Calzento is provided free of charge for personal, educational, and professional reference use. You may share calculator URLs, embed calculator outputs in your own work with attribution, and reference our methodology pages in your writing.

What we ask

• Don't scrape the site aggressively. If you need bulk data, contact us.
• Don't republish our calculator UI as your own product.
• Don't use the site for anything illegal.

What you can rely on

We try to keep the site online and the data accurate. We cannot guarantee either. Outputs are estimates — see our disclaimer for the full limitation of liability.

Intellectual property

The methodology, copy, and visual identity of Calzento are ours. The underlying tax and rate data is public-domain (sourced from government releases) and we make no claim on it. The amortization formula is centuries old.

Changes

We may update these terms. Material changes appear in the changelog.