This ai weighted grade calculator takes each grade and its weight – syllabus percentages, assignment points, or university module credits – and returns your weighted average grade with its letter, live as you type. Each row shows its exact contribution to the result, weights that don’t total 100 are handled correctly, and equal or empty weights collapse into a simple unweighted average. Below the calculator, a remaining-weight planner tells you what you need on the rest of the course to hit your target.
| Assignment / Module | Grade (%) | Weight | Contribution |
|---|
Weights can be any positive numbers – 20 (percent), 20 (credits) or 0.2 (decimal) all produce the same average, because the formula divides by the total weight. Leave every weight blank for a simple unweighted average. Results are estimates; your gradebook or transcript is official.
How to Use the Weighted Grade Calculator
- List each graded item and its score. One row per assignment, category or module – “Midterm, 81” – using the percentage you earned. Grading in points? Convert first: 41 out of 50 = 82%. Mixing levels is fine (one row per category, or one per assignment) as long as each row’s weight matches what it represents.
- Enter each item’s weight – in whatever unit your course uses. Syllabus says “Midterm – 30%”? Enter 30. University module worth 20 credits? Enter 20. The calculator divides by the sum of weights, so percentages, credits and points all work – only the ratio between weights matters.
- Watch the contribution column. Every row shows exactly how many points of your final average it supplies. This is where weighted grading becomes visible: a 92% on labs worth 25 contributes 23.0 points, while a 74% essay worth 20 contributes only 14.8 – the column tells you instantly which grades are carrying you and which are dragging.
- Read your weighted average and letter. The green box updates live. If your entered weights don’t total 100, that’s fine mid-semester – the average is computed over the graded share, exactly how your teacher’s gradebook does it.
- Use the planner below for what’s left. Enter the share of the course still ungraded and your target overall grade – the remaining-weight planner returns the average you need on the outstanding work, and flags targets that would need more than 100%.
Weighted Grade Formula – How a Weighted Average of Grades Is Calculated
One formula covers every case on this page – syllabus categories, assignment lists and university modules alike:
Read it as: multiply every grade by its weight, add those products, then divide by the total of the weights. The division is what makes the formula self-correcting – weights totaling 100, 80 or 40 all produce a valid average.
| Item | Grade | Weight | Grade × Weight |
|---|---|---|---|
| Essay | 74% | 20 | 1,480 |
| Midterm | 81% | 30 | 2,430 |
| Labs | 92% | 25 | 2,300 |
| Presentation | 88% | 25 | 2,200 |
| Total | – | 100 | 8,410 |
Weighted average = 8,410 ÷ 100 = 84.1% – a B. Compare that with the simple average of the same four scores: (74 + 81 + 92 + 88) ÷ 4 = 83.75%. The weighted result is higher because the strong 92% carries more weight (25) than the weak 74% essay (20). That gap grows as weights diverge – which is exactly why “just averaging your grades” misleads you in any weighted course.
Weighted Average for University Modules – Using Credits as Weights
At university, weights usually arrive as credits rather than percentages – and the same formula handles them untouched. Enter each module’s mark as the grade and its credit value as the weight:
| Module | Mark | Credits | Mark × Credits |
|---|---|---|---|
| Core Module | 68% | 20 | 1,360 |
| Elective A | 74% | 10 | 740 |
| Elective B | 62% | 10 | 620 |
| Total | – | 40 | 2,720 |
Weighted average = 2,720 ÷ 40 = 68.0%. Note what the credit weighting did: the simple average of 68, 74 and 62 is 68.0% too in this case – but shift the strong 74% mark onto the 20-credit module and the weighted average climbs to 69.5% while the simple average stays put at 68%. Double-credit modules are double-stakes modules; protect them first. The same math applies to US credit hours – and if you’re converting course grades into a 4.0-scale average, that’s a different calculation: use the college GPA calculator for grade points and cumulative GPA.
Remaining-Weight Planner – What Do I Need on the Rest of the Course?
Your weighted average covers the graded share of the course – this planner covers the rest. Enter your current weighted grade, how much of the course it represents, and your target overall grade:
Formula: Needed = (Target − Current × Graded Share) ÷ Remaining Share
Example: 70% of the course graded at an 82% average, targeting 85% overall → (85 − 82 × 0.70) ÷ 0.30 = 92.0% needed on the remaining 30%. Steep but possible. If the remaining weight is mostly one final exam, take the precise version of this question to the final grade calculator, which adds a what-if score table and letter-grade breakpoints.
Weighted vs Unweighted Average – and Why Weighted Grade ≠ Weighted GPA
- Unweighted average: every grade counts equally – add and divide by the count. It’s what this calculator computes when you leave all weights blank or equal, and it’s only correct when your course genuinely treats all work equally.
- Weighted average: grades count in proportion to their weight. A 30-weight midterm moves the result three times as far as a 10-weight quiz. Any time your syllabus lists category percentages – or your degree lists module credits – this is the correct math.
- Weighted GPA is a different animal: it averages across courses on the 4.0 scale and adds difficulty bonuses (+0.5 Honors, +1.0 AP/IB). If you searched “weighted grade calculator” looking for AP and Honors GPA boosts, you want the high school GPA calculator – this page weights scores within a course, not courses within a transcript.