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Course Grade Calculator

Grade Calculator — Calculate Your Current Course Grade

Enter your assignment scores and weights to see your current course grade, letter grade, and GPA equivalent — plus find out what you need on the final exam.

This grade calculator handles every situation: weighted categories from your syllabus, individual assignment points, or a simple unweighted average. It integrates directly with the Final Grade Calculator so you can instantly see what final exam score you need to reach any target grade. Works for high school, college, and graduate courses. Powered by the same formulas your professor uses.

Weighted Categories

Set up categories exactly as in your syllabus

Individual Assignments

Points earned / points possible per assignment

Simple Average

Unweighted average of any list of scores

Grade Calculator
Choose a mode, enter your scores, see your grade instantly
Category 1
Category 2
Category 3
Category 4
Total weight: 100.0%

How Weighted Grades Are Calculated — Complete Guide

A weighted grade multiplies each category score by its weight, sums the results, and divides by the total weight of completed categories. The formula normalizes automatically when not all categories are complete, so your current grade always reflects only work you have actually submitted.

Weighted Grade = Σ(Score × Weight) ÷ Σ(Completed Weights)
Example 1 — Standard Course (Midterm Complete, Final Pending)
CategoryWeightScoreContribution
Homework20%8888 × 20 = 1760
Quizzes15%9191 × 15 = 1365
Midterm25%8484 × 25 = 2100
Final Exam40%Pending—
Current Grade = 5225 ÷ 6087.08% (B+)

Remaining weight: 40% (Final). Your current grade is 87.08% based on 60% of completed work.

Example 2 — Points-Based System
AssignmentEarnedPossiblePercentage
Assignment 1475094.0%
Quiz 1384095.0%
Midterm8610086.0%
Total: 171 ÷ 19019090.0% (A-)

Formula: 171 ÷ 190 × 100 = 90.0%. Letter grade A- on standard plus/minus scale.

Example 3 — Lab Course (Mixed Weights)
CategoryWeightAvg ScoreWeighted Points
Lab Reports30%822460
Lab Practicals20%781560
Lectures30%852550
Final Exam20%Pending—
Current = 6570 ÷ 8082.13% (B)

Common mistake: averaging 82 + 78 + 85 = 81.67% ignores the weights. Always multiply each score by its weight first. The correct current grade is 82.13%.

Common Course Weight Structures

Traditional

Homework20%
Quizzes15%
Midterm25%
Final Exam40%

Project-Based

Assignments30%
Projects40%
Participation10%
Final20%

Test-Heavy

Weekly Quizzes20%
Midterm 120%
Midterm 220%
Final40%

Lab Course

Lab Reports30%
Lab Practicals20%
Lectures30%
Final20%

Discussion-Based

Reading Responses25%
Discussion25%
Research Paper25%
Presentation25%

Letter Grade Scales — Which Scale Does Your School Use?

Letter grade scales vary by institution and professor — always check your course syllabus for the specific scale used. The calculator above supports four common scales. For the GPA impact of each letter grade, see Letter Grade to GPA.

Standard Plus/Minus Scale
Most common at US colleges and universities
GradeRangeGPA
A+97–1004.0
A93–964.0
A-90–923.7
B+87–893.3
B83–863.0
B-80–822.7
C+77–792.3
C73–762.0
C-70–721.7
D+67–691.3
D63–661.0
D-60–620.7
Fbelow 600.0
Simple 10-Point Scale
Many high schools and some colleges
A
90–100
4.0
B
80–89
3.0
C
70–79
2.0
D
60–69
1.0
F
<60
0.0
Modified Plus/Minus Scale
Some universities — A+ starts at 98
A+98–100
A92–97
A-90–91
B+88–89
B82–87
B-80–81
C+78–79
C72–77
C-70–71
Strict Scale
Competitive programs — A starts at 94
A
94–100
B
84–93
C
74–83
D
64–73
F
<64

How Each Assignment Affects Your Final Grade

Every assignment can only move your final grade by a maximum of its weight percentage. A 100-point quiz worth 5% can change your final grade by at most 5 points — regardless of what you score. A 100-point final exam worth 40% can swing your grade by up to 40 points. This is why studying for high-weight assessments has an outsized return.

Grade impact of one assignment = (Your Score − Current Avg) × Weight ÷ 100

Example: if your category average is 70% and you score 78% on a 40% final exam, your grade changes by (78 − 70) × 40 ÷ 100 = +3.2 grade points — potentially the difference between a D and a C, or a C and a B.

Assignment WeightMax Impact on FinalScoring 10 pts HigherScoring 10 pts LowerPriority
5%5 pts+0.5 pts−0.5 ptsLow
10%10 pts+1.0 pts−1.0 ptsLow
15%15 pts+1.5 pts−1.5 ptsMedium
20%20 pts+2.0 pts−2.0 ptsMedium
25%25 pts+2.5 pts−2.5 ptsHigh
30%30 pts+3.0 pts−3.0 ptsHigh
40%40 pts+4.0 pts−4.0 ptsCritical
50%50 pts+5.0 pts−5.0 ptsCritical

Focus study time on the highest-weight assessments. For a detailed final exam calculation, use the Final Grade Calculator.

How to Improve Your Grade — Strategic Assignment Planning

Three worked scenarios to show when a target grade is achievable, when it requires a perfect final, and when it is no longer possible — so you can plan realistically.

1
Currently at B- (81%), want A- (90%) — 40% final remaining
Impossible scenario — plan early
Required final = (90 − 81 × 0.6) ÷ 0.4 = (90 − 48.6) ÷ 0.4 = 41.4 ÷ 0.4 = 103.5%

Not achievable — would require 103.5% on the final. The A- target was already mathematically out of reach when the non-final portion of the grade was locked in at 81%. This is why calculating early in the semester matters: it reveals when you need extra credit or when to adjust your target downward.

2
Currently failing (55%), want to pass (70%) — 50% of grade remaining
Challenging but achievable
Required avg = (70 − 55 × 0.5) ÷ 0.5 = (70 − 27.5) ÷ 0.5 = 42.5 ÷ 0.5 = 85%

An 85% average across the remaining 50% of the grade is challenging but achievable. This student needs to average a B on all remaining work. Attainable with focused effort — see the Final Grade Calculator for the exact breakdown by assignment.

3
Borderline B/B+ (86.5%), 30% final remaining, want B+
Very achievable — do not stress the final
Required final = (87 − 86.5 × 0.7) ÷ 0.3 = (87 − 60.55) ÷ 0.3 = 26.45 ÷ 0.3 = 88.2%

Only 88.2% is needed on the final — a very achievable B+. Students often over-stress the final when they are already close to a grade boundary. Calculate early and study proportionally to the required score, not out of fear.

Study Prioritization for the Final Exam

Review the topics where you scored lowest on the midterm — these are most likely to reappear and represent the highest improvement potential per study hour. If extra credit is available, calculate exactly how many percentage points it can add and whether it pushes you past the next grade threshold.

Different Grading Systems — US, UK, and International

Grading systems vary significantly worldwide. This calculator uses the US percentage-based system, but understanding the equivalents helps when comparing international transcripts or applying abroad.

🇬🇧 UK Degree Classifications
First Class (1st)70%+
Upper Second (2:1)60–69%
Lower Second (2:2)50–59%
Third Class (3rd)40–49%
Passbelow 40%
🇦🇺 Australian Grading
High Distinction (HD)85–100%
Distinction (D)75–84%
Credit (C)65–74%
Pass (P)50–64%
Fail (F)below 50%
🇪🇺 European ECTS Grades
Based on relative rank, not fixed percentages
GradeDefinitionTop %
AExcellentTop 10%
BVery GoodNext 25%
CGoodNext 30%
DSatisfactoryNext 25%
ESufficientBottom 10% passing

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