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How Calcunia selects formulas, writes examples, reviews calculators and explains the limits of each result.
Calcunia method
Calcunia favors formulas that can be displayed, checked and reproduced from the values shown on the page. When a calculator uses a simplified model, the page should say what is included, what is excluded and which assumptions matter most.
Core calculators should include a numeric example with realistic inputs, the calculation step and the resulting value. A useful example is not a generic instruction: it should let a visitor verify the formula and see how units, periods or rates affect the answer.
The public directory is limited to calculators that are suitable for visitors. Programmatic calculators that have not been reviewed should remain outside category lists, related links and the sitemap until their title, formula, example, language and limitations have been checked.
Calculator outputs are estimates and educational aids. Finance, health, real-estate, tax, engineering and professional decisions can require qualified advice because fees, local rules, personal context and measurement quality can change the result.
Calcunia calculators are designed to run in the browser. Values entered into calculators should be used to produce the visible result and should not require an account, a payment flow or unnecessary collection of calculator inputs.
Formula errors, unclear translations, missing assumptions and accessibility issues are treated as quality signals. A correction report should include the calculator URL, entered values, expected result and observed result when possible.
Each calculator should show the calculation intent, assumptions to check, a readable formula or method and the limits to know before using the result.
Results are designed for estimation and comparison. They do not replace financial, medical, legal, tax or professional advice tailored to your situation.
Feedback about a formula, translation, unit or unclear explanation should be treated as a priority quality signal.