Frequently asked questions
AskCalculators provides clear calculators with private, bookmarkable inputs.
Does AskCalculators use AI?
No hosted AI model is needed. Each calculator uses a predefined formula or purpose-built utility.
Where does the calculation run?
The calculator reads your inputs, runs the stated formula, and shows the result on the page.
Can I bookmark a calculation?
Yes. Supported inputs are written to the query string. Bookmark or copy the updated page URL to reopen the same values.
Are query-string inputs private?
Do not place sensitive data in a calculator URL. Query strings can appear in browser history, bookmarks, shared links, hosting logs, and other systems that receive the URL.
What does definition.json do?
It describes one calculator: its name, fields, outputs, formula notes, category, query parameters, and related machine-readable links.
What does schema.json do?
It is a JSON Schema for the calculator inputs. Software can use it to validate values before running or linking to a calculation.
What does llms.txt do?
It gives AI tools and other software a short text description of the calculator, its inputs, formula, and useful URLs. It does not run an AI model.
What happens when an optional input is empty?
An empty optional field is not automatically changed to zero. The calculator decides whether to ignore it or use a stated fallback.
Are the results guaranteed?
No. Results may depend on assumptions, rounded values, user inputs, and date-sensitive rules. Check important results with a qualified professional or primary source.
Why can two calculators give different answers?
They may use different assumptions, compounding periods, units, rounding rules, fees, tax rules, or reference dates. Review the formula and notes shown on each page.