Weighted Course Grade Calculator
Calculate your final course grade by applying accurate weights to assignments, quizzes, exams and projects. Weights don't have to total 100% — perfect for mid-semester progress checks.
Not every assignment is equal. A final worth 40% shouldn't carry the same weight as a weekly quiz worth 5%. This calculator weights each assessment correctly before averaging.
Weighted Grade Calculator
Fill optional course info, pick an output scale, add each assessment with its weight, and calculate. Everything runs in your browser.
What this calculator does
From raw assessments to final grade.
Weighted average
Score × weight, summed and divided.
Multi-scale output
Convert to any of 5 grading scales.
Letter grade
Standard US A+ through F lookup.
Export report
Download or share via WhatsApp.
Your result
Formulas & one-click demos
The exact weighted-average formula, and two common scenarios — a completed course and a mid-semester progress check — you can load straight into the calculator.
Final course grade
All assessments completed
User case
A course has two components: a midterm worth 40% where you scored 80%, and a final worth 60% where you scored 90%. What's the final course grade?
How it's calculated
Total weight = 40 + 60 = 100
Final grade = 8600 ÷ 100 = 86.00% (Letter B, 3.44 on 4.0)
Who uses it
- Students verifying final grades before posting
- Educators calculating end-of-term course grades
Mid-semester check
Weights below 100%
User case
Halfway through the semester, you've completed one quiz worth 10% of the grade and aced it. The final exam (worth 60%) and a project (30%) are still ahead. What's your current standing?
How it's calculated
Total weight = 10 (not 100 — course isn't finished)
Current grade = 1000 ÷ 10 = 100.00% — provisional, will shift after the remaining 90%
Who uses it
- Students checking progress before finals
- Advisors reviewing mid-semester standings
How the five output scales map
After computing your weighted percentage, the calculator can convert it to any of these five international grading standards.
| Weighted % | US 4.0 | 5.0 | IB 7.0 | 10.0 CGPA | US letter |
|---|---|---|---|---|---|
| 97 – 100% | 3.88 – 4.00 | 4.85 – 5.00 | 6.79 – 7.00 | 9.70 – 10.00 | A+ |
| 90 – 96% | 3.60 – 3.84 | 4.50 – 4.80 | 6.30 – 6.72 | 9.00 – 9.60 | A / A− |
| 80 – 89% | 3.20 – 3.56 | 4.00 – 4.45 | 5.60 – 6.23 | 8.00 – 8.90 | B+ / B / B− |
| 70 – 79% | 2.80 – 3.16 | 3.50 – 3.95 | 4.90 – 5.53 | 7.00 – 7.90 | C+ / C / C− |
| 60 – 69% | 2.40 – 2.76 | 3.00 – 3.45 | 4.20 – 4.83 | 6.00 – 6.90 | D |
| Below 60% | Below 2.40 | Below 3.00 | Below 4.20 | Below 6.00 | F |
Clear, simple, transparent
What this calculator does, and what it doesn't — no fine print.
What this calculator does
- Computes a weighted average from scores and weights entered
- Works correctly even when weights don't total 100%
- Converts to any of 5 international grading scales
- Shows live weight-sum warnings when totals don't match 100%
- Runs entirely in your browser — no data leaves the page
What this calculator does not do
- Does not apply instructor-specific grade curves
- Does not convert raw points automatically — enter percentages
- Does not know your school's specific scale cutoffs — uses standard mappings
- Does not replace your official course grade — use as a planning check
Get accurate weighted grades
Six habits that produce reliable weighted-grade results before and during the semester.
Pull weights from the syllabus
Don't guess. Every course syllabus lists exact assessment weights — use them verbatim. A common mistake is using round numbers like 20/30/50 when the syllabus specifies 15/35/50, shifting the final grade by several percentage points.
Convert points to percentages first
A 45/50 quiz and a 180/200 final are both 90% — but entering raw points would break the math. Convert every score to a 0–100 percentage before entering. This puts every assessment on the same scale regardless of original point totals.
Re-run mid-semester
Run this calculator every few weeks as new grades come in. You'll see your standing drift up or down — a useful signal to pivot study time toward the highest-weight upcoming assessments before finals.
Target the highest-weight final
A 40% final exam can swing your course grade more than all earlier assessments combined. When planning study time, allocate disproportionate effort to the highest-weight remaining assessment — that's where your grade moves fastest.
Don't confuse weights with credits
Weight is the percentage of a single course's grade that an assessment represents. Credits are a separate concept — they measure how much a course counts toward your degree GPA. This calculator uses weights, not credits.
Watch the weight-warning banner
If the warning banner shows total weight is under 100%, your grade is provisional — more assessments are still coming. If it's over 100%, you've double-counted something or misread the syllabus. Either way, verify before trusting the result.
Frequently asked questions
Quick answers about weighted grades, weights and scale conversion.
Understanding weighted math
Using the calculator
Ready to calculate another weighted grade?
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