How is a Nigerian university aggregate calculated?

A common model scales JAMB to 50%, Post-UTME to 30% and O'level grade points to 20%, giving an aggregate out of 100. Each university sets its own weighting and cut-off mark, so this tool lets you change the weights.

How do you convert a JAMB score to the 50% weighting?

Divide your JAMB score by 400 and multiply by the JAMB weight. With the default 50% weight, a JAMB of 250 contributes (250 ÷ 400) × 50 = 31.25 points to your aggregate.

How are WAEC O'level grades scored?

This calculator uses the standard 6-point screening scale — A1 is 6 points down to C6 at 1 point, with D7 to F9 scoring 0 — and uses your best five subjects. The five subjects can score a maximum of 30 points, which is then scaled to the O'level weight.

What aggregate score do I need for admission?

There is no fixed national number — each university and each course sets its own cut-off, often anywhere from the high 40s to the 70s out of 100 for competitive courses. Use this tool to compute your own aggregate, then compare it against your target school's published cut-off.

Can I use this for NECO instead of WAEC?

Yes. NECO uses the same A1–F9 grading scale as WAEC, so the 6-point conversion is identical. Pick your best five NECO grades exactly as you would for WAEC.

Is this the official formula?

No single national formula exists. The default 50/30/20 model is widely used, but always check your chosen university's own aggregate formula and cut-off, then adjust the weights in the tool to match.

JAMB / Post-UTME / WAEC Aggregate Score Calculator

JAMB, Post-UTME and WAEC aggregate score calculator

Nigerian university admission usually combines three results into a single aggregate score out of 100: your JAMB UTME, your Post-UTME screening score, and your WAEC / NECO O’level grades. This calculator does that arithmetic for you and shows exactly how each part contributes, so prospective undergraduates can compare their aggregate against a target cut-off before applying.

How it works

The default model is the widely used 50% JAMB + 30% Post-UTME + 20% O’level split, computed as:

JAMB part = (JAMB ÷ 400) × 50
Post-UTME part = (Post-UTME ÷ 100) × 30
O’level part = (your O’level points ÷ 30) × 20

O’level points come from your best five grades on the standard 6-point screening scale: A1 = 6, B2 = 5, B3 = 4, C4 = 3, C5 = 2, C6 = 1, and D7–F9 = 0. Five A1s give the maximum 30 points. Because every school differs, you can edit the three weights — the tool warns you if they no longer total 100%.

Example

A candidate with JAMB 280, Post-UTME 65, and O’level grades A1, B2, B3, C4, C5:

Component	Calculation	Points
JAMB (50%)	(280 ÷ 400) × 50	35.00
Post-UTME (30%)	(65 ÷ 100) × 30	19.50
O’level (20%)	points 20 of 30 → (20 ÷ 30) × 20	13.33
Aggregate	sum	67.83

So this candidate’s aggregate is 67.83 / 100.

O’level grade points (best 5)

Grade	Points	Grade	Points
A1	6	C5	2
B2	5	C6	1
B3	4	D7	0
C4	3	E8 / F9	0

Privacy: everything runs in your browser; nothing is uploaded. No single national formula exists — always confirm your university’s own weighting and cut-off, and adjust the weights to match. For guidance only.