How to report an error
Use the contact page or email our contact address. Include the calculator's URL, the exact inputs you used, the result the tool showed, and the result you expected (with a source if you have one). A specific, reproducible report is fixed far faster than a general "this looks wrong."
What we accept corrections on
Not just numeric formula errors. I accept reports on a wrong or outdated formula, an incorrect worked example, an outdated assumption or rate, a broken link, an unclear or misleading explanation, or any other factual claim on the site.
Material vs minor corrections
A material correction— one that changes a calculator's formula, result, or a factual claim someone might rely on — is prioritised, fixed at the source, re-verified against the cited reference or stated convention, and the page's "last reviewed" date is updated. A minor correction — wording, formatting, a stale link, a typo — is fixed as part of routine maintenance without necessarily being individually logged.
Formula and content correction workflow
A reported issue is reproduced using the inputs provided, checked against the formula and cited source shown on the page, corrected at the source rather than patched superficially, and re-verified before the fix goes live. Where the issue affects an automated check, that check is updated too so the same error cannot silently reappear.
Extra care for finance, tax, and health corrections
Finance and investing calculators are educational estimates, not financial or investment advice, so a reported error there is checked against the formula and stated assumptions before a fix goes live. Tax calculators can depend on jurisdiction, filing status, and rules that change by year — a reported tax error is checked against the current cited source or stated convention for that jurisdiction, not just adjusted by feel. Health calculators such as BMI, TDEE and calorie deficit are informational screening and planning tools, not a medical diagnosis, so a reported health-calculator error is re-verified against its cited reference before republishing. Each fix is checked against the reference the page cites, so the corrected figure and its source agree before the page goes back live. This is one person's documented review process, not an independent professional financial, tax, or medical review — for a high-stakes decision, still confirm the corrected figure with a qualified professional or the official source.
Review and update handling
Beyond individual reports, a page is also reviewed whenever I learn that an underlying reference value or rule has changed — for example a tax bracket, contribution limit, or wage base. Pages that depend on time-sensitive figures carry a visible review date so you can judge how current the figures are. See our Editorial Policy for the broader review standard.
Accountability
Jay Sudhamaintains every calculator, formula, and explanation on the site and is the named person accountable for corrections. Nobody else reviews the calculators: the person who wrote a page is the person who checked it, which is what each page's byline says, with the date. Reports sent through the contact form or by email go to one inbox that person reads. See who runs the site and our full Disclaimer.
Corrections FAQ
How do I report a wrong formula or result?
Send the calculator URL, the inputs you used, the result shown, and the result you expected, through the contact page or by email. The more specific the report, the faster it can be reproduced and fixed.
How long does a correction take?
There is no fixed SLA, but accuracy reports are treated as a priority. A material error affecting the result is reproduced, fixed, and re-verified as quickly as possible; minor wording or rounding-display issues are queued with routine updates.
Will I be told when a correction is made?
If you left a way to reach you, I will follow up once a reported issue is resolved. Every message is read even when I cannot reply individually to each one.
Do you correct explanations and wording, not just formulas?
Yes. I accept reports on an outdated assumption, a broken link, an unclear explanation, or a factual claim, not only numeric formula errors.
