How to Calculate Your Aggregate Score for University Admission

Every admission season, the same question shows up in every JAMB WhatsApp group: "what's my aggregate?" It sounds like it should have one universal answer, but the honest one is: it depends on your university — and sometimes on your specific department within that university.

Most Nigerian universities look at three things when ranking candidates: your JAMB (UTME) score out of 400, your Post-UTME screening score, and your O'Level results from your best five subjects. A widely used formula weights these JAMB 50%, Post-UTME 30%, O'Level 20% — but plenty of institutions deviate from this, some using JAMB score alone to shortlist candidates before Post-UTME even happens.

Here's the arithmetic behind the common method. First, your JAMB score is scaled: a score out of 400 becomes a contribution out of 50 by dividing your score by 400 and multiplying by 50. Your Post-UTME score gets the same treatment, scaled to a 30-point contribution. Your O'Level grades are converted to points — a common scale gives A1 six points, B2 five, B3 four, C4 three, C5 two and C6 one — summed across your best five subjects and scaled to a 20-point contribution.

Add the three contributions together and you get an aggregate out of 100. Someone who scored 280 in JAMB, 65 in Post-UTME, and A1/B2/B2/B3/C4 in their five best O'Level subjects would land at roughly 35 (JAMB) + 19.5 (Post-UTME) + 15.3 (O'Level) ≈ 69.8 out of 100.

What that number actually gets you depends entirely on the course and school. Medicine, Law and Pharmacy departments are typically the most competitive, often expecting aggregates in the 70s. Engineering and Computer Science usually sit in the 60s. Many other courses admit comfortably from the 50s upward — and cut-off marks shift every admission cycle based on how many people applied and how many slots exist.

The most reliable way to know exactly where you stand is to check your target university's admissions portal directly for their published aggregate formula and the previous year's cut-off marks for your department. In the meantime, our JAMB Aggregate Score Calculator lets you plug in your own numbers using the common weighting, or JAMB score alone, so you can see roughly where you land before results are released.