Editorial Policy

Calculator Development Principles

All CalcDock calculators are built using standard mathematical formulas and publicly available reference data. Accuracy is our top priority — calculation logic is based on academic sources and official reference materials.

Content Standards

The descriptions, examples, tips, and FAQs included with each calculator are written to help users understand and correctly use the results. Our content aims to educate and inform, not to market or promote.

Not a Substitute for Professional Advice

CalcDock calculators and content do not replace professional advice in law, medicine, taxation, or financial planning. For important decisions, always consult a qualified professional in the relevant field. See our Disclaimer for full details.

Error Corrections and Updates

When calculation errors are reported or discovered, we investigate and correct them as quickly as possible. Reference data that changes over time — such as tax rates, exchange rates, and regulatory thresholds — is reviewed and updated periodically.

User Feedback

We welcome error reports, improvement suggestions, and new calculator requests via our Contact page. User feedback is essential to maintaining and improving the quality of our tools.

Sources, Claims, and Corrections

When a page makes a factual claim about rates, thresholds, or health screening bands, we aim to cite an authoritative primary source (government agency, WHO/CDC, or widely used textbook-level definition). Exchange rates in the currency helper are illustrative; always confirm against your bank or payment provider at transaction time.

If you believe a number, formula, or explanation is wrong, email us with the page URL and a link to your preferred authoritative reference — we prioritize verifiable corrections.

Independence and Advertising

CalcDock is supported by display advertising. Ads do not influence calculator formulas or ranking of related tools. Sponsored or affiliate relationships, if introduced in the future, will be disclosed on this page and on affected content. See our Advertising Disclosure.

How a calculator gets built

Each calculator starts as a problem we've seen people solve badly with spreadsheets, calculator apps, or ad-heavy competitor sites. Before writing any code we document four things: the exact formula being implemented (with a citation to the authoritative source — a tax-authority publication, a published financial textbook, a metric-system standard), the assumptions baked into that formula, the inputs required from the user, and the edge cases that should either reject input or show a warning rather than return a misleading number.

The implementation is then reviewed against a small set of hand-calculated reference cases. For finance and tax calculators, we cross-check the output against at least two independent sources (typically an official calculator on a government site plus a financial-industry tool). For unit converters, we compare against NIST-published reference values where they exist. A calculator that disagrees with its references by more than a rounding error doesn't ship.

When we update existing calculators

We push fixes the same day for: incorrect formulas, math that returns the wrong sign, currency or unit mislabeling, and any edge case that silently returns a number when it should warn. Cosmetic and copy improvements ship on a weekly cadence. We deliberately do not auto-update tax-rate tables, statutory interest rates, or jurisdiction-specific limits — those change too often and too variably across regions for us to maintain accurately. Where a calculator depends on a value that drifts (an inflation rate, a current tax bracket), the calculator either accepts it as user input or shows the date the embedded assumption was last reviewed.

Corrections policy

If a published calculator or guide turns out to be wrong, we fix it in place rather than silently deleting it. Material corrections (anything that would change a user's decision) get an inline correction note dated to the fix, so anyone who relied on the earlier output can see what changed. Typos and clarity-only edits are made without a notice. To report an error, use the contact form and include the calculator name, inputs, the result you got, and the result you expected.

Scope limits we will not cross

CalcDock provides general-purpose calculation tools. We do not provide: individualized financial, medical, legal, or tax advice; predictions of future market or interest-rate movement; risk scoring for specific securities; clinical diagnoses or treatment recommendations. Several of our calculators (mortgage, loan, BMI, VAT) sit adjacent to those domains — they compute what their formulas compute, nothing more. The disclaimer on each affected calculator and our site-wide disclaimer spell this out per category.