Terms of use

Last updated: 5 October 2026.

Operator

NumberSwift is operated by Alejandro del Alamo, Calle Nuñez de Balboa, Colmenar Viejo, Madrid, Spain. Contact: alejandro-alamo@hotmail.com.

Using the calculators

The service is free and provides informational calculations. Each tool explains its formula and assumptions. Verify important decisions against original data and professional advice where appropriate. Financial results are not a loan offer or financial advice. Hardware estimates do not guarantee compatibility or runtime.

Accuracy and availability

We aim to correct reproducible errors, but estimates depend on the inputs and assumptions. Availability may change. Nothing in these terms limits rights or liabilities that cannot lawfully be excluded.

Acceptable use

You may use and share calculator links. Do not interfere with the service, attempt unauthorized access or misrepresent an estimate as a guaranteed outcome.

Changes and questions

We publish updates here with a revised date. Contact the operator for questions, corrections or privacy requests.