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Editorial policy

Last updated 3 October 2026

CalcScholar gives clear answers to questions that come down to numbers: a CGPA, a loan payment, a tax bill, a body mass index. A calculator that is quick but wrong does more harm than no calculator, so this page sets out the standards every page on the site is held to, how a calculator goes from idea to live page, and what happens when we get something wrong.

Principles

  1. Reliable information. Every rule, rate and scale comes from the body that publishes it: a university’s academic regulations, a tax authority, a standards body, or an established textbook formula. A page names its source where it depends on one and, for universities, the date the source was read. No page goes live until a second person has checked it.
  2. Content that stays current. The date under a calculator’s title is the last time the calculator, its numbers or its text changed in a way that matters to a reader. Figures that change over time, such as tax rates and grading scales, are re-checked when the publishing body announces a change.
  3. Listening to feedback. Every page has a way to tell us about a mistake through the contact page. We read every report, compare it with the source and fix what is wrong.
  4. Independence. Advertising never changes a result. No company pays to appear in a result or to change what a page says, and no university has paid for, approved or reviewed anything here.

Editorial process

Each calculator and its page go through the same five steps.

  1. Specification. The creator writes down what the calculator should compute, the source it relies on, the inputs a person really has to hand, and the awkward cases.
  2. Build. The creator builds the calculator with its calculation logic kept apart from the screen so it can be tested, and works at least one example through by hand from the source.
  3. Page. The creator prepares the page around the tool: how to use it, the formula in plain words, the worked example and the questions people ask most.
  4. Review. A different person, the reviewer, checks three things: that the formula and inputs match the source; that the worked example on the page gives the same answer as the calculator; and that the wording promises no more than the tool delivers.
  5. Release checks. Automated tests cover the calculation code. For the grade calculators they reproduce a real five-semester Superior University result card exactly, down to every semester GPA, running CGPA and percentage. Further checks look for broken links, accessibility problems and layout shift. A page is published only when all of them pass.

Creators and reviewers

Each calculator names one creator and one reviewer in the box under its title, and the two are never the same person. A reviewer does not review their own work. Each name links to a profile with that person’s published background and the calculators they have worked on, and everyone is listed on the team page. Who runs the site is explained on the About page.

Corrections

If a result disagrees with your result card, tax slip or textbook, your document is right. Send the page address and the figure you expected through the contact page. We compare the report with the source, correct the calculator and change the Updated date. If the error could have led someone to a wrong decision, we say what changed on the page itself.

Limits of what we publish

Calculators about money, health and study give estimates for planning. They are not financial, tax, legal, medical or academic advice, and the PDFs the site generates are unofficial. The disclaimer has the details, and the privacy policy explains what the site stores.