Is the JAMB Aggregate Calculator free to use?

Yes, the JAMB Aggregate Calculator is completely free. No account, subscription, or signup is required — ever.

Does my data get uploaded anywhere?

No. The JAMB Aggregate Calculator runs entirely in your browser. Your data is never sent to any server.

Does it work offline?

Yes. Once the page has loaded, the tool works without an internet connection.

Which browsers are supported?

All modern browsers — Chrome, Firefox, Safari, and Edge. No plugins or extensions required.

What is the JAMB aggregate formula?

The standard formula used by most Nigerian universities is: Aggregate = (JAMB Score ÷ 8) + (Sum of best 5 O'Level grade points ÷ 30 × 50). JAMB contributes a maximum of 50 points (400 ÷ 8) and O'Level contributes up to 50 points. The total aggregate is out of 100. Some universities use slightly different weightings — always check with your specific institution.

What are the O'Level grade point values?

A1 = 6 points, B2 = 5 points, B3 = 4 points, C4 = 3 points, C5 = 2 points, C6 = 1 point, D7 = 0, E8 = 0, F9 = 0. Only grades C6 and above are considered credit passes. Most university courses require a minimum of 5 credits including English Language and Mathematics.

Does every Nigerian university use this formula?

Not all — while this formula is widely used, some universities have their own weightings (e.g. 60% JAMB + 40% O'Level, or different screening requirements). This calculator uses the most common formula. Always verify the specific admission formula with your target institution.

JAMB Aggregate Calculator

Calculate your JAMB aggregate score for Nigerian university admissions.

Formula: JAMB Score ÷ 8 (out of 50) + Best 5 O'Level Grades ÷ 30 × 50 = Aggregate out of 100

JAMB Score (0 – 400)

O'Level Results (enter at least 5 subjects)

English Language

Maths

Subject 3

Subject 4

Subject 5

Subject 6

Subject 7

Subject 8

Subject 9

Different universities may apply different weighting formulas. This uses the 50/50 JAMB/O'Level split common to most Nigerian universities.

What is the Free JAMB Aggregate Calculator?

The free JAMB Aggregate Calculator computes your university admission aggregate score from your JAMB UTME result and O'Level grades — using the official formula used by Nigerian universities. Enter your JAMB Score (0–400) and select your O'Level grades for up to 9 subjects; the tool picks your best 5, converts them to points, and calculates your aggregate out of 100. Use it to check your eligibility for any course or university before applying.

→ Calculate your aggregate score to know if you qualify for your preferred course
→ Compare your aggregate against published cut-off marks for specific universities
→ Find out how many additional JAMB marks or O'Level credits would improve your aggregate
→ Help parents and students understand the JAMB + O'Level combination formula
→ Plan re-sitting strategy — see whether improving JAMB or O'Level credits helps more

How to Use the Free JAMB Aggregate Calculator

1 Enter your JAMB UTME score (between 0 and 400) into the JAMB Score field.
2 Select your O'Level grades from the dropdown menus for each subject (up to 9 subjects). Use A1, B2, B3, C4, C5, C6, D7, E8, or F9.
3 The calculator automatically picks your best 5 grades, converts them to points (A1=6, B2=5, B3=4, C4=3, C5=2, C6=1, D7/E8/F9=0), and computes the O'Level contribution.
4 Read your Aggregate Score out of 100: calculated as (JAMB ÷ 8) + (best 5 O'Level points ÷ 30 × 50).
5 The total credits count is also shown — JAMB requires a minimum of 5 credits for most courses.

Key Features

🎓
Official formula

Uses the standard Nigerian university admission formula: JAMB/8 + (best 5 O'Level grades/30 × 50).
📋
Best 5 auto-selection

Automatically selects your 5 highest O'Level grades from up to 9 subjects.
✅
Credit count

Shows the number of credit passes (C6 and above) — critical for JAMB eligibility.
⚡
Instant result

Aggregate updates as you change any grade or score.
🆓
Free, no signup

No account, no registration — free to use anytime.

Example Usage

Example Input

JAMB Score: 280 | Best 5 O'Level: A1, B2, B3, C4, C5

Example Output

JAMB Contribution: 35.0 (280 ÷ 8)
O'Level Contribution: 43.3 (13/30 × 50)
Aggregate: 78.3 / 100

Frequently Asked Questions about the Free JAMB Aggregate Calculator

What is the free JAMB Aggregate Calculator?: Calculate your JAMB aggregate score for Nigerian university admissions.
Is the JAMB Aggregate Calculator free to use?: Yes, the JAMB Aggregate Calculator is completely free. No account, subscription, or signup is required — ever.
Does my data get uploaded anywhere?: No. The JAMB Aggregate Calculator runs entirely in your browser. Your data is never sent to any server.
Does it work offline?: Yes. Once the page has loaded, the tool works without an internet connection.
Which browsers are supported?: All modern browsers — Chrome, Firefox, Safari, and Edge. No plugins or extensions required.
What is the JAMB aggregate formula?: The standard formula used by most Nigerian universities is: Aggregate = (JAMB Score ÷ 8) + (Sum of best 5 O'Level grade points ÷ 30 × 50). JAMB contributes a maximum of 50 points (400 ÷ 8) and O'Level contributes up to 50 points. The total aggregate is out of 100. Some universities use slightly different weightings — always check with your specific institution.
What are the O'Level grade point values?: A1 = 6 points, B2 = 5 points, B3 = 4 points, C4 = 3 points, C5 = 2 points, C6 = 1 point, D7 = 0, E8 = 0, F9 = 0. Only grades C6 and above are considered credit passes. Most university courses require a minimum of 5 credits including English Language and Mathematics.
Does every Nigerian university use this formula?: Not all — while this formula is widely used, some universities have their own weightings (e.g. 60% JAMB + 40% O'Level, or different screening requirements). This calculator uses the most common formula. Always verify the specific admission formula with your target institution.