“What do I actually need to get?” is the most useful question a student can ask, and it has a precise answer. If you know what you have banked and how much weight is still in play, you can work out the exact average you need on everything that remains.
The back-calculation
The logic is the weighted-average formula, rearranged to solve for the unknown future marks:
Required average = (target × total weight − points already banked) ÷ remaining weight
where “points banked” is the sum of (mark × weight) for everything already graded.
Worked example: a 2:1 from here
Imagine your final-year mark is what decides things, it is built from four 30-credit modules (120 credits total), and you have results for two of them:
- Module 1 — 62 over 30 credits → 62 × 30 = 1,860 points
- Module 2 — 57 over 30 credits → 57 × 30 = 1,710 points
Banked so far: 1,860 + 1,710 = 3,570 points across 60 of the 120 credits. A 2:1 needs an average of 60, so the target points for the whole year are 60 × 120 = 7,200.
Points still needed: 7,200 − 3,570 = 3,630, to be earned over the remaining 60 credits. So your required average is 3,630 ÷ 60 = 60.5. You need to average just over 60 on the final two modules to secure the 2:1 — very achievable.
What about a First?
Re-run the same sum with a target of 70: target points become 70 × 120 = 8,400; still needed = 8,400 − 3,570 = 4,830; required average = 4,830 ÷ 60 = 80.5. Averaging 80 in your final modules is a tall order, so a First is mathematically possible but unlikely from this position. Seeing that clearly lets you set a realistic target rather than chasing one that has slipped out of reach.
Reading the answer sensibly
- If the required average is above ~75, treat the target as a stretch and have a fallback in mind.
- If it is below your typical mark, you are on track — protect it, do not gamble it.
- If it comes out above 100, that classification is no longer reachable; refocus on the next one down and finish strong.
Do not forget year weighting
The example above stayed within a single year for clarity. In reality the same calculation runs across years using their weightings, so a strong banked year can mean you need less from your final one — or a weak earlier year means you need more. Our guide to year weighting explains how much each year is really worth.
Let it update itself
The arithmetic is simple but it changes every time a mark lands, and re-doing it by hand is where errors creep in. UniGrade’s target calculator runs this exact back-calculation continuously: pick a target classification and it tells you the average you need on remaining work, per module and overall, and flags when a target is no longer realistic. Create a free account and set your target in a couple of minutes.