Calculation results
Results depend on the values, units, dates, and modes you select. Although we test our tools and explain their formulas, errors can occur in software, content, input, interpretation, or assumptions. Independently verify any result that could materially affect health, safety, finances, rights, or obligations.
No professional advice
Nothing on NumUtility is medical, legal, financial, tax, accounting, engineering, or other professional advice. Examples are illustrative and may not reflect the rules, fees, measurements, definitions, or circumstances that apply to you. Consult a qualified professional and authoritative sources for case-specific guidance.
Dates and jurisdictions
Date calculations use the Gregorian calendar and general elapsed-time conventions. Laws, contracts, schools, insurers, and public agencies may define age, deadlines, months, business days, inclusion of endpoints, or time zones differently. Their official rule controls.
Measurements and conversions
Conversion pages use the factors stated on each page. Real measurements have uncertainty, and labels such as weight may be used informally. Scientific, manufacturing, trade, medical, and safety uses may require calibrated instruments, specified standards, tolerances, and controlled rounding.
Random results
The random number generator and random number picker are intended for everyday games, learning, and informal selection. They are not certified for gambling, regulated lotteries, cryptographic key generation, high-stakes security, or research protocols requiring an audited source of randomness.
Password generation
The random password generator is a general-purpose convenience tool. Generated passwords should be stored in a reputable password manager, used for only one account, and replaced if exposure is suspected. It is not a substitute for an organization's security policy or a purpose-built process for encryption keys, recovery seeds, regulated credentials, or other specialized secrets.
External content and advertising
Third-party links and advertisements are provided by independent parties. Their appearance does not constitute endorsement, and we are not responsible for their claims, products, availability, or privacy practices.