Terms of Use
Conditions for using Numerdo calculators, content and related website features.
Purpose of Numerdo
Numerdo provides calculators, conversion tools and explanatory information for general informational and educational use.
Calculator results
Results are generated from the values you enter and the formulas or assumptions stated on the relevant page. Many calculators use simplified models, averages or fixed assumptions. You are responsible for checking whether those assumptions are appropriate for your situation.
No professional advice
Numerdo does not provide legal, tax, accounting, medical, investment, credit or other regulated professional advice. Where a decision depends on local law, contractual terms, regulated data or professional judgment, use an appropriate authoritative source or qualified professional.
Accuracy and availability
Numerdo aims to use correct formulas, transparent methods and reasonable testing. However, the website is provided on an as-available basis and no calculator is guaranteed to be error-free, complete, uninterrupted or suitable for every jurisdiction or purpose.
Third-party links and services
Numerdo may contain links to advertisers, affiliate partners or other external websites. Their products, services, terms and privacy practices are independent from Numerdo. A link does not constitute a guarantee or endorsement of a third-party service. Some qualifying partner links may generate a commission for Numerdo. Commercial links are kept separate from calculator outputs and are disclosed on the relevant page. See the Affiliate Disclosure for details.
Intellectual property
Unless otherwise indicated, Numerdo's site design, explanatory text and original calculator presentation are protected by applicable intellectual-property rights. You may use calculator outputs for lawful personal or business purposes, but you may not copy or republish substantial parts of the site as your own service without permission.
Acceptable use
You may use Numerdo for lawful purposes. You must not intentionally interfere with site operation, attempt unauthorized access, abuse automated requests, distribute malicious code or use the service in a way that infringes the rights of others.
Changes to the service
Numerdo may add, remove or update calculators, formulas, content, third-party services and these terms as the site develops. Material changes will be reflected by updating the revision date below.
Last updated: September 2026.