Weighted Average Grade Calculator

Many UK university degrees weight modules by credit value. A standard undergraduate year comprises 120 credits, with modules typically worth 15, 20 or 30 credits each. Your weighted average is calculated by multiplying each module mark by its credit value, summing the results and dividing by the total credits.

Degree classification is usually based on a weighted average across years, with later years counting more heavily. A common weighting is Year 2 at 33% and Year 3 at 67%, or Year 2 at 25% and Year 3 at 75%. Some institutions count all three years. The calculator supports custom year weightings.

Enter your module marks and credit values for each year. The calculator produces a weighted average for each year and an overall degree average using your institution's year weighting. It then maps this to a degree classification: First (≥70%), 2:1 (≥60%), 2:2 (≥50%), Third (≥40%).

What is a weighted grade? Average where different items count differently. Standard average: all items equal weight. Weighted: critical items count more. Sample UK A-Level Maths: Paper 1 (33%), Paper 2 (33%), Paper 3 (34%). Final mark = (P1 × 0.33) + (P2 × 0.33) + (P3 × 0.34). If P1=80, P2=70, P3=85: weighted average = 26.4 + 23.1 + 28.9 = 78.4%. Without weights: simple avg 78.3% — similar but accurately reflects each paper's importance.

UK A-Level subject weighting examples. Biology AQA: Paper 1 (33%), Paper 2 (33%), Paper 3 (34%) — equal weighting. Chemistry OCR: Paper 1 (37%), Paper 2 (37%), Paper 3 (26%). English Lit AQA: Paper 1 (40%), Paper 2 (40%), NEA coursework (20%). Physics: Paper 1 (33%), Paper 2 (33%), Paper 3 (34%). Modern Languages: writing (50%), speaking (25%), listening (25%). Always check specific specification — weights vary by exam board.

University degree weighting. UK degrees typically classify by 2nd and 3rd year (Year 1 'pass/fail' qualifying only). Standard weighting: Year 2 weighted 33%, Year 3 weighted 67%. Some universities (Oxford, Cambridge): final year exams weighted 100%. Modules within year: weighted by credit count (typically 15 or 30 credits each). Sample: 10 modules × 30 credits in Year 2, 8 modules × 15 + 4 × 30 in Year 3 — calculate weighted average. Final classification: 1st (70%+), 2:1 (60-69%), 2:2 (50-59%), 3rd (40-49%), Pass (35-39%).

Strategic implications of weights. High-weighted assessments need higher relative effort. If Paper 3 = 50%: prioritise revision time accordingly. Below-weight performance on heavy item: more harmful than below-weight on light item. Sample: 'safety margin' calculation — what minimum % needed on Paper 3 to get target overall grade? Target 80% with P1=75 (40%) and P2=78 (30%): need P3 = (80 − 30 − 23.4)/0.3 = 88.7%. Reverse engineering helps prioritise study time.

Other UK weighted contexts. Predicted grades for university (UCAS): teachers weight current performance + trajectory + mocks. Coursework + exam combinations: NEA (non-examined assessment) weighted 10-30%. Multi-subject combinations: each subject weighted equally for university entry typically (e.g. AAB = all three A-levels). EPQ (Extended Project): worth 0.5 A-level for UCAS Tariff. UK BTEC qualifications: each unit weighted by credit count. International Baccalaureate: 7-point scale, weighted by 6 subjects + theory of knowledge + extended essay.