Terms of Use
NumLuma provides calculators and explanatory content for general informational, educational and planning purposes.
Calculation results
Results depend on the values you enter, the formula shown and any stated assumptions. Results may be rounded for readability and should be independently verified when precision is important.
Not professional advice
NumLuma does not replace financial, legal, tax, medical, engineering, construction, investment or other professional advice. A mathematical result can be correct while an external assumption, law, rate, product specification or local requirement differs.
Your responsibility
You are responsible for checking important inputs and verifying relevant local rules, professional requirements and third-party information before acting on a result.
Acceptable use
You may use NumLuma for normal personal, educational and business calculations. You may not intentionally interfere with the site, attempt unauthorized access, or use automated activity in a way that materially disrupts service for others.
Content and branding
NumLuma’s original interface, branding and written explanations may not be represented as another party’s original work. Mathematical facts and formulas themselves are not claimed as exclusive property.
Availability and changes
Calculators may be corrected, improved, renamed, added or removed as the site evolves. We do not guarantee uninterrupted availability.
External services
Links, analytics, advertising or other third-party services may have their own terms and policies.
Last updated: October 2026.