QPI Calculator Philippines

How to use this calculator

1. Pick the right scale firstMost Philippine universities use 1.00 as the highest mark and 5.00 as failing. Some use a 4.00-highest scale. Entering a 3.50 means opposite things under each, so this is the input to get right before anything else.
2. Enter units accuratelyUnits come from your curriculum, not from contact hours. Laboratory courses often carry different units from the lecture component even when they appear as one entry on the registration form.
3. Leave unused rows blankRows with zero units or an empty grade are ignored, so you do not need to fill all eight.
4. Check the per-course contributionThe breakdown shows the quality points each course contributed. That is where you can see which course is actually moving your index and which is barely registering.

Why units change everything

A plain average treats every course as equal. QPI does not, and the difference is larger than students expect.

Take four courses graded 1.25, 1.50, 2.00 and 1.75. The plain average is 1.625. Now attach units: 3, 3, 5 and 2. The 2.00 is a five-unit course, so it carries far more weight than the 1.75 in a two-unit subject. The weighted index comes out at 1.6731 — worse than the plain average, because the weakest grade sits in the heaviest course.

Reverse the units and the picture inverts. Put the 2.00 in a two-unit course and the 1.25 in a five-unit one, and the index improves to around 1.55 with exactly the same grades.

The practical consequence is about where to spend effort. Raising a five-unit course from 2.00 to 1.75 moves the index roughly two and a half times as much as the same improvement in a two-unit course. Students who spread revision evenly across subjects are, arithmetically, spending time in the wrong places.

It also explains why a single bad grade in a major subject is so hard to recover from. Major courses carry the most units by design, so they dominate the index, and one term of weak performance in them takes several strong terms to average out.

Worked example: four courses, 13 units

Calculus 1.25 × 3 units = 3.75 quality points.

Physics 1.50 × 3 units = 4.50 quality points.

Engineering Design 2.00 × 5 units = 10.00 quality points.

Filipino 1.75 × 2 units = 3.50 quality points.

Total quality points: 21.75. Total units: 13.

QPI = 21.75 ÷ 13 = 1.6731.

Notice that Engineering Design alone contributes 10 of the 21.75 quality points — nearly half — on a single course. It is the grade that matters most, and it is also the weakest of the four. Improving it to 1.75 would add 1.25 quality points, taking the index to 20.50... no: to 21.75 − 10.00 + 8.75 = 20.50, giving 20.50 ÷ 13 = 1.5769. A quarter-point improvement in one course moves the index by nearly a tenth.

By contrast, improving Filipino from 1.75 to 1.50 changes the total by 0.5 quality points, giving 21.25 ÷ 13 = 1.6346 — less than half the effect for the same effort on the grade.

How the scales compare

These mappings are the common convention, not a national standard. Percentage bands in particular differ substantially between institutions, and some schools use 1.1, 1.2, 1.3 style increments rather than quarter points. Your registrar's published table is the one that counts — this exists to make the two scales comparable, not to override anyone's.

Honours, retention and what the number is actually for

Latin honours thresholds are set by each university, and often by each college within the same university. Cum laude commonly sits somewhere around 1.75 on the 1.00-best scale, magna cum laude around 1.45, and summa cum laude around 1.20 — but those figures move by institution and are frequently accompanied by conditions that have nothing to do with the index.

Those conditions matter as much as the number. Many schools require no grade below a stated floor anywhere in the transcript, which means a single 3.00 in a first-year elective can disqualify a student whose index is comfortably in range. Some require a minimum number of units taken at the institution, which affects transferees. Some exclude summer terms, and some count them.

Scholarship retention usually runs on a different threshold from honours, and often on a per-term index rather than a cumulative one. A student can hold a cumulative index well inside the range and still lose a scholarship on one weak term.

Dean's List criteria are the most variable of all, and frequently include a minimum unit load — which means a student who dropped to a light load to protect their grades can be ineligible despite excellent marks.

The cumulative index across all terms is what appears on a transcript and what graduate schools and employers read. A term index is useful for tracking, but nobody outside the university ever sees it.

Converting a Philippine QPI to a US-style GPA is not a defined operation. Institutions abroad apply their own conversion, and credential evaluation services differ from each other. Any conversion table found online is one organisation's convention rather than an authority.

Assumptions and limitations

• The weighted-average arithmetic is universal; grading scales and thresholds are not
• Honours and retention thresholds shown are indicative — your registrar's published rules govern
• Does not know whether your school includes PE, NSTP or other non-academic units
• Does not handle incomplete grades, dropped subjects or courses under appeal
• Does not apply per-course grade floors that many honours criteria impose alongside the index
• Cumulative index requires entering all courses across all terms, not just one term
• QPI to GPA conversion is not a defined operation — receiving institutions apply their own

Questions people ask about this in Philippines