Editorial Policy

What This Page Covers

This page sets out how content on MegaCalcOnline.com is produced, reviewed and corrected, and how the site is funded. If you want the formulas and data sources behind a specific calculator, those are set out separately on our calculator methodology page.

Who Operates This Site

MegaCalcOnline.com is operated by SM Services Pty Ltd, an Australian-registered company based in Melbourne, Victoria. The site was built to address a specific gap: most calculator websites available to Australians use American figures, carry outdated rates, or put basic tools behind a registration wall.

We are not a bank, a lender, a tax agent or a financial adviser, and we are not licensed to give personal advice. Everything here is general information. That distinction is not a legal formality — it changes what you should do with the results. A calculator can tell you what a repayment would be at a given rate; it cannot tell you whether a loan suits your circumstances.

How Content Is Produced

Every calculator goes through the same sequence before it is published.

1. The formula is sourced first. Tax and superannuation calculations come from ATO published rates and thresholds. Health formulas use named, peer-reviewed equations rather than unattributed ones. Where a standard applies, we work from the standard rather than from another website.
2. The calculation is tested before any content is written. Each calculator is checked against worked examples with known answers, including edge cases — zero values, blank inputs, negative numbers, and boundaries between brackets or bands.
3. Assumptions are stated on the page. Where a figure depends on a choice — which cup standard, which GPA scale, which financial year — the calculator names what it is using and, where practical, lets you change it.
4. Content explains the method, not just the answer. A result you cannot check is a result you cannot trust, so pages show the formula and the substitution.
5. Links are verified before publication. Internal links are checked against the live site and external references against the source.

What We Will Not Publish

Some of these are worth stating explicitly, because they are common on calculator and finance sites.

1. Fabricated review scores or testimonials. No invented star ratings, no fictional user quotes, no schema markup claiming ratings that do not exist.
2. Invented statistics. Figures are attributed to a source or presented as typical values with that stated plainly.
3. Claims of compliance we cannot support. We do not state that a calculation meets an Australian Standard unless it demonstrably does.
4. Advice that belongs with a professional. On medical, legal and personal financial questions we explain the concept and direct you to someone qualified rather than substituting for them.
5. Content designed to rank rather than to help. Pages exist because someone needs the answer, not because a keyword had volume.

Corrections

We get things wrong. Rates change, formulas are misread, and edge cases surface that testing missed. When that happens we would rather hear about it than not.

If you find an error, email us through the contact page with the page address and what you believe is wrong. We aim to acknowledge reports within a few business days. Where an error affects a calculation, we correct it and update the review date on the page. Where it materially changes a published result, we note the correction on the page itself rather than quietly amending it.

If you have relied on a figure from this site for something consequential, please verify it against the official source before acting. That is true of any free tool, including ours.

How the Site Is Funded

MegaCalcOnline.com is free to use and carries advertising. Advertising revenue pays for hosting and development.

Advertisers have no influence over what we publish. We do not accept payment to feature a product in a calculator, to rank a lender favourably, or to write content promoting a service. Where we mention a specific product or provider, it is because it is relevant to the explanation, not because of a commercial arrangement. If that ever changes, this page will say so and any affected content will be labelled.

Reviews and Updates

Pages that depend on rates or legislation — tax, superannuation, Centrelink, stamp duty — are reviewed when the underlying figures change, which for most is at the start of the financial year on 1 July, and at other times when a change is announced. Pages built on stable formulas, such as geometry and unit conversion, are reviewed less often but are corrected immediately when an error is found.

Each page shows a review date. That date means the content was checked against its sources on that day. It does not guarantee that nothing has changed since, which is why calculators covering regulated areas link to the official source.

Frequently Asked Questions