Built for clarity, accuracy, and trust
How calculators and guides on BlinkCalc are written, checked, and corrected, including the areas we are still working to improve.
Our editorial approach
BlinkCalc is more than a directory of calculators. Many tools include an explanation of the method, examples, and links to related guides. Our goal is for readers to leave understanding the numbers, not just collecting them.
These standards describe what we aim for across articles, guides, and tool pages. This page also says plainly where published content does not yet meet them.
Our principles
Four ideas shape how BlinkCalc pages are written and maintained.
Educational first
We aim to pair calculators with an explanation of the method and, where the tool uses a formula, a worked example. Not every page has one yet: generators and simple utilities often have no formula to show.
Accurate formulas
Calculators use standard mathematical, financial, and scientific formulas. Where a result depends on figures such as tax bands, we aim to state the assumptions used. Not every tax calculator currently shows the tax year it applies to.
Calculation transparency
Where a tool uses a formula, we aim to show the method, assumptions, and limitations so you can check the estimate yourself. Reported mistakes are reviewed, and confirmed errors are corrected.
Kept up to date
Articles are revisited and updated when we find outdated figures, unclear explanations, or errors. Each article shows a date, which is the most recent update where there has been one.
What a calculator page should cover
These are the steps we aim to follow so that the explanation, the formula, and the tool itself stay aligned.
Define the question
Start with the real-world question a reader is trying to answer, not just a formula, and shape the page around it.
Pick the right formula
Use the standard formula for the topic. Where several methods exist, choose the one that matches common usage and, where it matters, explain the alternatives.
Show a worked example
Where the tool has a formula, a short example makes it concrete and doubles as a check that the calculator behaves as the explanation says.
Write the explanation
Plain language, short paragraphs, and useful context, with caveats and limitations so readers know when the result applies and when it does not.
Accuracy and review
We explain formulas, not just answers, and use worked examples as a check that the calculator and the explanation agree.
BlinkCalc uses AI-assisted tools in development and content preparation. Pages are reviewed by a person before publication. AI-assisted material can still contain mistakes, so we ask readers to report any errors they find.
- The calculation logic behind a number of calculators is covered by automated tests that compare results with known values.
- When the site is built, prerendered pages are automatically checked for basic structural problems, such as a missing title or main heading, or very little text. These checks do not test whether every tool works correctly.
- Articles are generally published under the byline “BlinkCalc Editorial Team”. They do not currently name an individual author or an expert reviewer, so finance, health, tax, and legal content should not be treated as professional advice.
Sources
Some guides link to external sources such as government agencies or official guidance, but many articles do not yet list sources. Where a page relies on a specific rate, threshold, or official figure, check it against the official source for your country before relying on it.
Corrections
If you spot an error in a formula, example, or explanation, we want to know. Email support@blinkcalc.com with the page address and what looks wrong. We will review the report and correct confirmed errors.
Independence and advertising
BlinkCalc may display advertising to help keep the tools free to use. Ads are shown alongside page content, and the ad code does not change calculator formulas or results.
Limitations
BlinkCalc tools are provided for informational and educational purposes only. Results may depend on assumptions, rounding, and the data you enter. Financial, health, tax, and legal calculators are not a substitute for professional advice. For important decisions, please verify the result with a qualified professional or an official source.
If you ever feel a page is missing a caveat that you would want to see, tell us. We add limitations as we learn what is unclear.