Numeros is an independent website maintained by one person. Our calculators, generators and guides provide information and computational assistance. A result can help you explore a question, but it cannot assess every circumstance that matters to a decision. Read this page together with our Terms of Use, Privacy Policy and Methodology.
Understanding a result
Some tools apply mathematical formulas; others use reference tables, public lookups, estimates or heuristic methods. Results depend on your inputs, settings and the method used. Review the individual page's explanation, examples, sources and limitations, and independently verify important figures before acting.
| Factor | Why it matters |
|---|---|
| Inputs and units | Incorrect values, units or settings can produce misleading results. |
| Assumptions and model scope | A simplified estimate may omit fees, individual circumstances or exceptions. |
| Rounding | Displayed values and an institution's rounding rules may differ. |
| Local rules and dates | Taxes, thresholds, codes and standards vary by jurisdiction and period. |
| External data | Prices, reference rates and lookup results may be delayed, incomplete or unavailable. |
Not personalized professional advice
Numeros does not provide personalized financial, investment, tax, medical, legal, engineering, construction or religious advice. Using a tool does not establish a professional advisory relationship. Consult an appropriately qualified professional when a decision requires assessment of your circumstances.
| Area | Limits to keep in mind |
|---|---|
| Loans and mortgages | Estimates are not lending offers or approval decisions. Actual payments depend on lender terms, fees, insurance and other charges. |
| Investments and retirement | Projections rely on assumptions and do not predict returns or guarantee future income. |
| Tax and business | Results do not determine filing obligations, eligibility for relief or an authority's final assessment. Check the applicable period and jurisdiction. |
| Health, diet and fitness | Population-based estimates do not diagnose, treat or monitor a condition, or establish an individually suitable diet or exercise plan. |
| Engineering, electrical and construction | A general calculation is not a certified design, inspection or confirmation of compliance with local safety codes. |
| Zakat and religious calculations | An estimate is not a religious ruling or confirmation that the applicable conditions have been met. |
For health decisions involving symptoms, an existing condition, medication, pregnancy, children or concerns about eating and exercise, seek appropriate healthcare guidance. Check whether the specific tool is intended for your age group and circumstances.
Zakat estimates
The Zakat Calculator uses a simplified model and the selected nisab basis. It does not establish that a lunar year has passed, independently classify every asset or debt, or resolve differences in religious guidance. Gold and silver weight conventions, debt treatment and asset eligibility may differ. Follow the guidance appropriate to your circumstances and consult a qualified religious adviser where needed.
A current market-based nisab may differ from the value applicable to an earlier Zakat date. The tool does not cover every specialist business, agricultural or livestock calculation, and is not a Zakat al-Fitr calculator.
Prices, exchange rates and public lookups
Market prices and exchange rates are reference information, not executable quotes or guaranteed transaction prices. Dealer spreads, fees, taxes and provider pricing can change the amount you actually pay or receive.
Review timestamps where provided. A retrieval time does not necessarily mean the underlying market observation was made at that moment. A cached value may be older than the time you opened the page. If required data is unavailable, do not interpret a missing result as a zero liability or a confirmed value.
Public lookups and heuristic scores can be incomplete and should not be treated as official certifications. A reference to an organization, publication or data provider does not imply that it has reviewed or endorsed Numeros.
Accuracy and error reports
We aim to explain methods clearly and correct errors when identified. We do not guarantee that every tool, example, source or result is complete, current or error-free. A correct calculation can still be unsuitable when its assumptions do not fit the situation.
Report suspected errors through our Contact page. Include the page, units, settings and steps needed to reproduce the issue. Avoid sending private financial records, medical information, passwords or API keys.
Files, inputs and browser storage
Many calculations and document operations run in your browser. Some tools request external data or send specific entered information to another service. Certain features store drafts, preferences or optional API keys locally. We do not make a blanket promise that every input remains on your device or that nothing is retained.
Review the relevant tool's notice and our Privacy Policy for processing and storage details. An output does not by itself prove document authenticity, legal validity, accessibility, security or compliance with a required standard. Keep your original files and review generated or converted output before using it.
Free tools, advertising and affiliate links
All Numeros calculators and tools are free to use. Google AdSense advertising and affiliate commissions help cover the costs of running, maintaining and developing the site, and support the work behind it. You do not need to click an advertisement or make a purchase to use a tool.
Some links are affiliate referrals. If you follow an eligible referral and take a qualifying action, Numeros may receive a commission. Using a referral is optional and does not change a calculator's mathematical result. Review visible disclosures and the provider's prices, terms and privacy practices before proceeding.
Advertisements and external links do not guarantee a product's suitability, safety or performance. Transactions with an external provider are subject to that provider's terms. We do not control external content, records, outages or responses.
Availability and saving results
The site and tools may be changed, interrupted or discontinued. External services and downloaded libraries can become unavailable or limit requests. Many tools can work after loading, but features that depend on live data or public lookups require a connection.
If you need a result later, save or print it with its relevant inputs, assumptions and data date. A saved result remains subject to the limitations that applied when it was generated.
Warranties and liability
To the extent permitted by applicable law, the site and tools are provided "as is" and "as available," without warranties of accuracy, uninterrupted operation or fitness for a particular purpose.
To the extent permitted by applicable law, Numeros and its operator are not liable for indirect, incidental, special or consequential losses arising from use of, or inability to use, the site. Nothing on this page excludes liability or limits consumer rights that cannot lawfully be excluded or limited. Mandatory legal protections take precedence over any conflicting wording here.
Questions and related pages
For questions or corrections, use our Contact page. See also About Numeros, Methodology, Terms of Use and Privacy Policy.