Terms of service
Last updated 2026-04-15. By using Spot Check Tools you accept the terms below.
Use of the tools
Calculators and converters on this site are free to use without an account. You may use them for personal or commercial purposes. You may not scrape the site at scale, embed our tools in your own product without permission, or attempt to disrupt the service.
No warranty
Tools are provided as-is. We work hard to make them correct and to cite the standards they follow, but we do not warrant the results are accurate for any particular purpose. Standards change; bugs happen. Always verify a result before relying on it for a decision with material consequences.
Not professional advice
Tools that touch tax, payroll, employment law, real estate, construction, or finance are reference aids. They are not legal, tax, accounting, or professional engineering advice. For decisions that materially affect you, consult a qualified professional.
Limitation of liability
To the maximum extent permitted by law, Spot Check Tools and its contributors are not liable for any direct, indirect, incidental, consequential, or punitive damages arising from your use of the site or reliance on a tool result.
Intellectual property
The site, its design, and the editorial content are the property of Spot Check Tools. Source code that we publish (for example, on a public repository) is governed by the license that ships with that code. Values you compute using the tools are yours. We claim nothing in your inputs or outputs.
Changes to these terms
We may update these terms. The last-updated date at the top changes when we do. Continued use after a change means you accept the new terms.
Contact
Questions about these terms go to the address on the contact page.