About this calculator
The Marks Needed Calculator estimates what percentage you need on remaining assessments to reach a target overall grade. It is useful when some coursework, modules, or exams are already complete and some are still left.
marks needed calculator method
The calculator adds the weighted contribution from completed work, then works out the average needed across remaining work to hit the target.
- current contribution = sum(mark / total x weight)
- needed from remaining = (target - current contribution) / remaining weight x 100
How to use the marks needed calculator
- Enter completed assessments with marks, totals, and weights.
- Enter remaining assessments with their weights.
- Enter the target overall grade.
- Calculate the current contribution.
- Calculate remaining assessment weight.
- Find the percentage needed on remaining work.
Worked examples
Need a 70 overall
Input: Current contribution 39 percentage points, remaining weight 40%
Calculation: (70 - 39) / 40 x 100
Result: 77.5% needed on remaining work
Target impossible
Input: Need 110% on remaining work
Calculation: Required percentage exceeds 100%
Result: Target is not achievable from remaining work alone
Completed vs remaining work
The calculator separates work already completed from work still available so you can see what is mathematically required.
Assessment weighting
If assessment weights are wrong, the result will be wrong. Use your course handbook, mark scheme, or teacher guidance.
UK grading disclaimer
This calculator is for general planning and education only. UK grades are not GPA. Actual GCSE, A-Level, degree, and UCAS outcomes depend on exam boards, universities, course rules, moderation, weighting, grade boundaries, and official published requirements.
- GCSE and A-Level boundaries are set after each exam series.
- Universities can use weighting, best-credit, compensation, or borderline rules.
- UCAS points do not guarantee entry; course requirements vary.
Frequently asked questions
Is this a UK calculator?
Yes. These calculators use UK-style GCSE, A-Level, degree classification, and UCAS concepts rather than US GPA.
Are the grade boundaries official?
No. They are approximate planning guides. Always check your exam board, school, university, or UCAS course page.
Can this predict my final official grade?
It can estimate from the data entered, but official results depend on marking, moderation, boundaries, and institutional rules.
Why do weights matter?
A high mark in a heavily weighted exam affects the overall grade more than the same mark in a lightly weighted assessment.
Does this use GPA?
No. GPA is not used for these UK-focused grade calculators.
Related calculators
- Final Grade Calculator
- Weighted Grade Calculator
- Grade Calculator