Last updated: 2026-08-03. Plain-language version: don't abuse it, don't break the law with it, don't stake anything critical on it without checking.
Use the site to break any applicable law; attempt to disrupt, overload, or scrape the site at a scale that degrades it for other people; attempt to gain unauthorised access to any part of the site's infrastructure; or present the site's figures as your own original research without acknowledgement where that matters (academic work, professional reports, and similar).
Anything safety-critical, medical, structural, or regulatory. The reference charts (shoe and clothing sizes, resistor colour codes, ingredient weights, and similar) are standard-convention starting points, not certified data, and are explicitly labelled as approximate where real-world variation exists.
UnitMojo reserves the right to restrict access for anyone who doesn't follow this policy, though as a tool with no accounts or logins, that mostly means blocking abusive traffic at the network level rather than banning a specific person.