Content & Quality Guidelines
The editorial standards we apply to every tool and article on this site.
The promise
Every tool on this site is intended to be genuinely useful: a clear input, a clear output, and enough surrounding context that someone unfamiliar with the topic can use the result responsibly. We do not publish placeholder pages, AI-generated filler, or "coming soon" stubs. If a tool is listed in the navigation, it is finished.
Editorial principles
- Originality. All written content on the site — explanations, worked examples, FAQs — is written specifically for this site. We do not republish content from elsewhere. The mathematical formulas are public knowledge; the surrounding writing is ours.
- Practical usefulness. Every tool answers a real question someone might have: "what's my monthly mortgage payment?", "how many calories should I eat?", "how many days until X?". If a tool does not have a clear, common use case, we do not build it.
- Plain language. We avoid jargon where it is not needed. Where technical terms are unavoidable (CAGR, BMR, ISO 8601, etc.), we explain them on the page where they appear.
- Honest caveats. Every tool has limitations. We say so on the page. A BMI calculator that does not mention that BMI is a poor metric for athletes is doing the user a disservice. Same for a tax calculator that does not mention state taxes, or a retirement calculator that does not mention sequence-of-returns risk.
- Active maintenance. Tax brackets, formulas, and conventions change. When they do, we update. If you spot an out-of-date figure, please tell us.
What we will not publish
- Affiliate-linked product recommendations inside tool descriptions.
- Sponsored content disguised as editorial.
- Tools that require credentials or send user input to remote servers without disclosure.
- "Definitive guide" filler articles whose purpose is search-engine ranking rather than helping a real reader.
- Health or financial claims that overstate what a quick calculator can tell you.
How we handle errors
Errors happen. When they are reported and confirmed, we correct them as quickly as possible. For substantive corrections (changing a formula, updating tax brackets), we note the change in the page's last-updated indicator. For typos or formatting fixes, we silently correct.
Accessibility
We aim to keep the site usable with a keyboard, with screen readers, and at any reasonable zoom level. Pages are responsive on phones and tablets. If you encounter an accessibility issue, please contact us — accessibility regressions are treated as bugs.
Privacy by design
Every calculator runs in the browser. Inputs never leave your device. We do not log calculator inputs, build a user profile, or persist data on a server. The single piece of data the site stores locally is your theme preference (light/dark). See the Privacy Policy for details.
Feedback
If you think we have fallen short of any of these principles on a particular page, we want to hear about it. The contact page tells you how.