My Grade Finder
Calculator Accuracy & Testing
How My Grade Finder tests formulas, profiles, rounding and edge cases—and what an accurate calculator can and cannot guarantee.
What accuracy means here
Calculator accuracy has two parts. Mathematical accuracy means the entered values are processed by the displayed equation correctly. Policy accuracy means the selected scale, boundaries, exclusions and rounding rules match the user’s institution and scheme. A calculator can pass the first test while producing the wrong official expectation if the second profile is not a match.
Formula test cases
Core formulas are checked with hand-worked examples and repeatable cases covering typical values, decimals, zero weights, weights that do not total 100, minimum and maximum scores, impossible targets and empty rows. Weighted results preserve full numeric precision internally and round only for display.
Profile and boundary tests
Institution profiles are checked at every published grade boundary and immediately above and below it. Caps, optional-subject rules, scale direction and credit weighting receive their own checks. When an official rule cannot be confirmed, the page is labelled Custom profile, Estimate or Source check rather than presented as universal.
Independent verification
For each calculator family, at least one example is recalculated independently from the visible formula. Results are also compared with official worked examples when those are available. A competitor result alone is never treated as proof of a governing academic rule.
Limits you should know
Official systems may apply unpublicised administrative adjustments, transcript exclusions, repeat-course replacement, special rounding, component-pass requirements or programme-specific exceptions. My Grade Finder is a planning and explanation tool; the institution’s current regulation and official record always take precedence.
Report an accuracy issue
Email darth9081@gmail.com with the calculator URL, your entered values, expected result, actual result, browser or device, and the official policy link. Reports with reproducible inputs can be tested fastest. Do not send names, student numbers, transcripts or other sensitive records.