FAQ
Is this website free?
Yes. The public calculators, converters, generators, tools, and guides are free to use.
How accurate are the results?
We aim for formula-accurate and calendar-aware results, then add worked examples and notes so you can verify the output. For legal, medical, tax, or other high-stakes use cases, confirm the result with an official source or qualified professional.
How are formulas selected?
We prefer formulas that are widely used, easy to explain, and appropriate for a quick web calculator. When a formula has important limits, the page should explain those limits rather than hiding them behind the result.
What should I verify manually?
Verify dates used for official cutoffs, finance assumptions such as taxes or interest terms, and health inputs such as lab values or blood pressure readings. If the result affects a legal, clinical, or financial decision, use an official source or professional advice.
Do calculators run in my browser or on your server?
Most calculators on the public site run in your browser. If a page depends on external data, such as exchange rates, that dependency should be clear on the page itself.
Do you store my inputs?
By default, calculators do not require an account. If a feature uses server-side processing or logging, that behavior should be disclosed in the Privacy Policy or on the relevant page.
Why do calculator topics appear first?
Calculator topics appear first because they are the main brand workflow and often need formulas, examples, references, and clear limitations. Utility tools still remain public and useful; they should be labeled accurately and improved when a page needs more context.
Are converters, PDF tools, text tools, code tools, and generators indexable?
Yes, useful public tools should remain indexable. Category order affects how the site is browsed, not whether a useful page is allowed to rank. If a page is thin, the preferred fix is better copy, examples, limitations, and internal links.
Are health and finance calculators medical or financial advice?
No. Those pages are educational calculators. They can help with planning and awareness, but they should not replace professional judgment, diagnosis, treatment, tax filing, or regulated advice.
How often do you update pages?
Important calculator and policy pages are reviewed regularly. When we make a meaningful update, we update the visible review or last-updated information on the page.
Can I request a correction or report a bug?
Yes. Use the Contact page and include the page URL, your inputs, the output you saw, and the source or explanation behind your correction request.