Terms of Use
Last updated: November 12, 2026
Using ZemTools
These terms apply when you visit or use the ZemTools website and its calculators and utilities. By using the site, you agree to use it lawfully and in a way that does not interfere with the site or other visitors' use of it.
Calculations and estimates
ZemTools provides tools for general informational and practical purposes. Results depend on the inputs, units, assumptions, formulas, and rounding used by the relevant tool. Some outputs are estimates for planning, not guaranteed quantities, measurements, prices, or specifications. Check the result, units, and any notes shown with the tool before relying on it.
No professional advice
Nothing on ZemTools is a substitute for professional financial, legal, medical, tax, engineering, construction, or electrical advice. Do not use a calculator result as the sole basis for a safety-critical or other consequential decision. Verify important results independently and consult a qualified professional where appropriate.
Your inputs and responsible use
You are responsible for entering appropriate and accurate information and for deciding whether a tool is suitable for your task. Do not submit passwords, payment details, identity documents, or other sensitive information through the tools or public feedback channels. You must not use the site for unlawful activity, attempt unauthorised access, or deliberately disrupt its normal operation.
Availability and changes
We may update, improve, suspend, or remove a tool or part of the website as the platform develops. We aim to keep the site useful and available, but uninterrupted access and error-free operation cannot be guaranteed.
External websites
ZemTools may link to third-party websites for reference, support, or other purposes. Those websites are operated independently and have their own content, terms, and privacy practices. Review their information before using them.
Changes to these terms
These terms may be revised as the website and its features change. The current version and its latest update date will be published on this page. Continued use of the site after a revision means you are using the site under the updated terms.
Contact
For a correction, bug report, or question about the website, use the contact method described on the Contact page.