Terms of Service
Last updated: August 2, 2026
By using FourCalculator, you agree to the following terms.
The service
FourCalculator provides free, informational calculators and unit converters for finance, health, education, everyday math, conversions, and other utilities. It is provided "as is," free of charge, with no account required.
Not professional advice
Results from FourCalculator — including loan, mortgage, health, and academic calculators — are for general informational and educational purposes only. They are not financial, medical, legal, or professional advice. Always consult a qualified professional before making decisions based on these results.
No warranty
While we aim for accuracy in every formula, we make no guarantees that results are error-free, complete, or fit for a particular purpose. Use of any calculator's output is at your own risk.
Acceptable use
Don't attempt to disrupt, reverse-engineer for malicious purposes, or abuse the availability of the service.
Changes
We may update these terms or the site's calculators at any time. Continued use after changes constitutes acceptance of the updated terms.
Contact
Questions about these terms? Reach out via our Support Center.