Semester Grade Calculator
One number for the whole term. This semester grade calculator averages your course grades into a single semester percentage, so you can see exactly where you stand before finals.
How to use the semester grade calculator
A semester grade calculator answers a simple question: across all your classes, what is your average? Enter each course's current grade as a percentage in the Course Grade tab of the tool below (use one row per class), and it averages them into your semester grade. If your classes carry different credit hours, weight each row by its credits for a more accurate number.
Note what this is and is not: this is a percentage average of your courses, not a GPA. Grade points are a different system with a different page. If you need the 4.0-scale number for transcripts and applications, use our GPA calculator instead. Everything below runs locally in your browser with nothing uploaded.
Course Grade Calculator
Add your categories (weighted) or assignments (points-based) and get your current grade.
Weights should add up to 100%.
Final Exam Grade Needed
What do you need on the final to hit your target grade?
If your final has two parts and you already took part 1, fill both fields and we will tell you what part 2 needs.
What-If Scenario
See how a future score changes your grade before it happens.
GPA Calculator
Semester or cumulative GPA — weighted or unweighted.
Scale: A/A+ = 4.0, A- = 3.7, B+ = 3.3, B = 3.0, B- = 2.7, C+ = 2.3, C = 2.0, C- = 1.7, D+ = 1.3, D = 1.0, D- = 0.7, F = 0.
Quick Quiz Grader
For students checking a score — and teachers grading a stack.
Grade Calculator for Your LMS
Each platform grades a little differently. Pick yours — we'll load the right setup into the Course Grade calculator.
Canvas
Uses assignment groups with weights (e.g. Homework 30%, Quizzes 20%, Exams 50%). Matches the Weighted mode.
Blackboard
Weighted totals per category. Same math as Canvas — categories with percentage weights.
Moodle
Gradebook aggregates by mean of grades, often points-based with categories. Start points-based.
Google Classroom
Simple points-based gradebook. Start points-based and enter your scores.
After loading a setup, open the Course Grade tab — your categories are pre-filled. Just enter your scores.
How semester grade calculation works
Your semester grade is the average of your individual course grades. The simplest version is the straight average: add up every course percentage and divide by the number of courses. A semester grade calculator does that arithmetic, but the more useful version weights each course by its credit hours, since a 4-credit lab course should count more than a 1-credit seminar.
Use the simple average when all your courses carry the same weight, which is common in high school. Use the credit-weighted version in college, where a 4-credit course genuinely represents more work than a 3-credit one. The difference between the two methods is usually under a point, but on a borderline (89.4% vs 89.6%) it can decide a letter.
Worked examples
Example 1: simple average, four high school courses. Your grades are Biology 92%, English 85%, Math 78%, and History 90%. The semester grade calculator adds them: 92 + 85 + 78 + 90 = 345, divided by 4 = 86.25%, a B. The Math grade is doing the most damage here: raising it from 78% to 85% would lift the semester average to (92 + 85 + 85 + 90) ÷ 4 = 352 ÷ 4 = 88.0%, a B+. That tells you exactly where a study hour pays off most.
Example 2: credit-weighted, four college courses. Biology is 4 credits at 92%, English is 3 credits at 85%, Calculus is 4 credits at 78%, and History is 3 credits at 90%. Weighted sum = (92 × 4) + (85 × 3) + (78 × 4) + (90 × 3) = 368 + 255 + 312 + 270 = 1205. Total credits = 4 + 3 + 4 + 3 = 14. Semester grade = 1205 ÷ 14 = 86.071%, or 86.1%, a B. Compare that to the simple average of 86.25%: the weighting pulled it down slightly because the 4-credit Calculus grade (78%) counts more than the 3-credit English grade (85%).
Example 3: projecting before finals. You have five courses averaging 87.2% and one course, Chemistry, still has its final (worth 30% of that course) ungraded. Chemistry currently sits at 82%. If you score 90% on the final, Chemistry becomes (82 × 0.70) + (90 × 0.30) = 57.4 + 27 = 84.4%. Your new semester average = (87.2 × 5 + 84.4) ÷ 6 = (436 + 84.4) ÷ 6 = 520.4 ÷ 6 = 86.73%, or 86.7%. A semester grade calculator turns "I need to do well on the Chem final" into an exact target.
Example 4: what it takes to reach a goal. Your five finished courses average 84.0% and you want an 87.0% semester grade across six courses. The sixth course needs: (87.0 × 6) - (84.0 × 5) = 522 - 420 = 102%. Over 100%, so the goal is out of reach with these numbers; aiming for 86.0% needs (86 × 6) - 420 = 516 - 420 = 96%, difficult but possible. Honest math beats hopeful math.
Semester grade vs GPA: do not mix them
Students constantly confuse these two, so here is the clean distinction. A semester grade is a percentage average of your courses: 86.25% is a B. A GPA converts each course to grade points first (A = 4.0, B = 3.0, and so on) and averages those: the same courses might give a 3.1 GPA. They describe the same performance in different units, like Fahrenheit and Celsius.
Use the semester grade calculator when you think in percentages: tracking progress during the term, setting targets before finals, or comparing against a percentage-based honor roll cutoff. Use a GPA calculator when the audience speaks grade points: college applications, scholarships, transcripts, and academic standing rules. Our GPA calculator handles the grade-point math; this page stays in percentages.
One more distinction: this page averages courses into a semester number. If you want a single course grade from its categories (homework, tests, final), that is the main grade calculator. And if you want to know what you need on one final exam, the final grade calculator does that specific job.
When to check your semester grade
Midterm week. Half the term is graded, half is still opportunity. A semester grade calculator shows your trajectory while there is time to change it. An 84.5% at midterms with strong remaining weights is a very different situation from 84.5% with everything banked.
Before finals. This is the highest-value check of the term. Enter current grades, then use the projection math from Example 3 above for each course with an ungraded final. You will see exactly which finals matter most: usually the course where you are closest to a letter boundary and the final carries the most weight.
After grades post. Verify the official numbers against your own calculation. If a course grade looks wrong, your saved inputs are the evidence for a conversation with the teacher. Discrepancies are usually a misrecorded assignment or a weight you misread, and they are fixable if caught early.
Before course registration. Looking at last semester's average by subject tells you where you are strong. A student averaging 92% in sciences and 81% in humanities has useful information for balancing next term's schedule.
Common semester grade mistakes
1. Averaging letters instead of percentages. An A, B, B, C does not average to a "B" in any precise sense, because an 89% B+ and an 83% B are six points apart. Always average the percentages, then convert the result to a letter once at the end.
2. Ignoring credit weights in college. Treating a 4-credit course and a 1-credit course equally understates the big course's pull. In college, always weight by credits; the semester grade calculator's Course Grade tab supports this if you enter credits as weights.
3. Using stale grades. A semester average built on grades from three weeks ago is fiction. Update each course grade the week you calculate, especially the courses with recent ungraded work.
4. Forgetting in-progress work. If a major project is submitted but ungraded, your current average understates or overstates reality. Note which courses have pending grades and treat the semester number as provisional until they land.
5. Confusing semester grade with cumulative. This page computes one term. Your cumulative average across all terms is a separate number that moves much more slowly: one great semester barely dents four mediocre ones, because every past course still counts.
Comparing semesters fairly
A semester grade becomes more useful when you compare it across terms. But compare carefully: a fall semester of 86.25% and a spring semester of 87.10% look like modest improvement, yet the comparison only holds if both semesters had similar course loads and difficulty. Five courses including AP Chemistry is not the same workload as five regular electives, and the raw percentages do not capture that difference.
The fairest use of semester-to-semester comparison is spotting subject-level patterns. If your math and science courses average 91% across two semesters while humanities average 82%, that gap is real information about where you are strong, regardless of absolute numbers. Use it when choosing next term's courses and when deciding where tutoring would pay off most.
Semester grade calculator FAQs
How do I calculate my semester grade?
Add up all your course percentages and divide by the number of courses. For example, 92 + 85 + 78 + 90 = 345 ÷ 4 = 86.25%. In college, weight each course by its credit hours instead: multiply each grade by its credits, add those up, and divide by total credits. The semester grade calculator above does both.
What is the difference between semester grade and GPA?
A semester grade is a percentage average of your courses (for example, 86.25%, a B). A GPA converts each course to grade points first (A = 4.0, B = 3.0) and averages those (for example, 3.1). Same performance, different units. Use this semester grade calculator for percentages and our GPA calculator for grade points.
Should I weight my semester grade by credit hours?
In college, yes: a 4-credit course represents more work and usually more grade impact than a 3-credit one, so weight each grade by its credits. In high school, where courses typically carry equal weight, the simple average is fine. The difference is usually under a point either way.
How can I raise my semester grade before finals?
Find the course closest to a letter boundary where the final carries the most weight, and focus there. Example math: raising one 78% course to 85% in a four-course semester lifts the average from 86.25% to 88.0%. Targeted effort on the highest-leverage course beats spreading study time evenly.
What semester average do I need for the honor roll?
It varies by school: many high schools set honor roll around 85 to 90% or a 3.0 to 3.5 GPA, and colleges often use 3.5 for the dean's list. There is no universal cutoff, so check your school's handbook. Calculate your semester grade with the tool above, then compare it to your school's published threshold.
Can I project my semester grade before all grades are in?
Yes. Enter your current grade for each course, then estimate the ungraded portions (for example, project a final exam score using the weighted formula). The result is provisional, but it tells you exactly what each remaining assessment needs to be. Re-run the semester grade calculator as real grades replace your estimates.
Why does my school's portal show a different average?
Common causes: the portal weights by credits and you used a simple average (or vice versa), a course grade in the portal is stale, or a dropped/withdrawn course is still in your inputs. Recalculate with credit weights and current grades; if it still disagrees, ask the registrar which courses and weights their number uses.
Is this semester grade calculator accurate?
Yes, for the grades you enter: the averaging math is exact. Accuracy depends on using current course grades, the right weighting method for your school, and correct credit hours. It computes a percentage average, not a GPA. See our disclaimer.