Grade Calculator

A weighted grade multiplies each assignment or category score by its percentage weight of the total course grade, then sums the results. Formula: Grade = Σ(score × weight) ÷ Σ(weight). Example course — Homework 20%, Midterm 30%, Project 20%, Final 30%. Scores 95, 88, 92, 85. Weighted: (95×20 + 88×30 + 92×20 + 85×30) ÷ 100 = (1900 + 2640 + 1840 + 2550) ÷ 100 = 8930 ÷ 100 = 89.3%. If your syllabus specifies categories but you have multiple assignments inside a category, average those first, then apply the category weight. Our calculator supports both flat assignment-level weights and category-grouped weights.

To get your running grade mid-semester, only include assignments that have been graded. Ignore categories not yet completed, or temporarily normalize weights among completed categories. Example: after 6 weeks your course has graded homework (20%), quiz 1 (10%), midterm (30%) but not yet the final (30%) or project (10%). Your current grade = (homework_score × 20 + quiz_score × 10 + midterm_score × 30) ÷ 60. This tells you where you stand today, not your predicted final grade. Many students under- or overestimate their grade because they include unfinished categories as zeroes.

Rearrange the weighted formula to solve for the final exam score. Required = (target_grade − current_grade × (1 − final_weight)) ÷ final_weight. Example: current grade 82%, target 85%, final exam weighted 30%. Required = (85 − 82 × 0.70) ÷ 0.30 = (85 − 57.4) ÷ 0.30 = 27.6 ÷ 0.30 = 92%. You need 92% on the final. If the result exceeds 100%, your target is no longer achievable without extra credit. If it's 0 or negative, you've already locked in the target. Use this before the final to set realistic study priorities.

Standard US grading: A 90–100, B 80–89, C 70–79, D 60–69, F below 60. Plus/minus scale adds gradations: A+ 97–100, A 93–96, A- 90–92; B+ 87–89, B 83–86, B- 80–82; and so on. On the 4.0 GPA scale, A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0.0. Plus/minus GPA: A/A+ = 4.0, A- = 3.7, B+ = 3.3, B = 3.0, B- = 2.7, etc. For Honors, AP (Advanced Placement), or IB (International Baccalaureate) courses, many schools use a weighted 5.0 scale: A = 5.0 in AP, 4.5 in Honors, 4.0 in regular. Always check your school's specific scale in the course catalog.

Semester GPA = Σ(course GPA × credits) ÷ Σ(credits). Example: Math A (3 credits, 4.0), English B (3 credits, 3.0), History A- (3 credits, 3.7), Chemistry B+ (4 credits, 3.3). Semester GPA = (4.0×3 + 3.0×3 + 3.7×3 + 3.3×4) ÷ 13 = (12 + 9 + 11.1 + 13.2) ÷ 13 = 45.3 ÷ 13 = 3.48. Cumulative GPA = sum of ALL semesters' weighted quality points ÷ total cumulative credits. Your cumulative GPA changes more slowly as you accumulate credits — a single great or poor semester has less impact late in your degree. Use the related GPA Calculator for multi-course entries.

Unweighted GPA treats every course equally on the 4.0 scale — an A in AP Calculus and an A in Regular Math both count as 4.0. Weighted GPA adds bonus points for harder courses: typical US scheme adds +1.0 for AP/IB (so A = 5.0) and +0.5 for Honors (A = 4.5). This means weighted GPAs can exceed 4.0 — a student with all A's in AP classes can have a 5.0 weighted GPA. Colleges usually see both. Competitive admissions value course rigor: a 3.8 weighted (taking AP) often reads stronger than a 4.0 unweighted (standard classes only). When applying internationally, US schools typically convert to the WES iGPA on the 4.0 scale.

UK: GCSE uses 9–1 numerical (9 top, 4 'standard pass') replacing the old A*–G letters. A-Levels use A*–E. UK university degree classifications: First Class Honours (70%+), Upper Second '2:1' (60–69%), Lower Second '2:2' (50–59%), Third (40–49%), Ordinary/Pass. Canada: percentage-based 0–100% with letter conversion that varies by province; Ontario typically A+ 90+, A 80–89, B 70–79, C 60–69, D 50–59. Some universities use a 4.0 or 4.3 GPA. Australia: HD (High Distinction 85%+), D (Distinction 75–84%), C (Credit 65–74%), P (Pass 50–64%), F (Fail). Australian Tertiary Admission Rank (ATAR) is a percentile ranking, not a grade. For international applications, use World Education Services (WES) to translate between systems.

Extra credit is bonus points added on top of the weighted grade calculation. Small amounts (e.g., 2 points on a 100-point exam) can shift you across a letter-grade threshold (e.g., 79.5% → 81.5% = C→B). Grade curving is a professor-initiated adjustment when a class performs poorly. Common methods: (1) Flat bump — add the same number to every score; (2) Square-root curve — new = 10×√raw, so 81 becomes 90; (3) Top-score normalization — set highest score to 100 and scale others proportionally; (4) Bell-curve fit — force scores into a preset distribution (e.g., 10% A, 25% B, 30% C). Curves are usually announced with the graded exam. Not all professors curve; never assume. Our calculator lets you enter extra credit directly; for curves, apply the transformation to your raw score first then enter.

Pass/Fail (P/F) and Credit/No Credit (CR/NC) are alternate grading options many colleges offer, especially post-pandemic. How they work: you earn a Pass if your course grade meets the minimum (typically C or 70%), no letter grade appears on transcripts, and the course doesn't affect your GPA. Trade-offs: GPA stays stable even if you do poorly (Pass), but P/F courses usually can't fulfill major requirements, and graduate programs view too many P/F courses skeptically. Use P/F strategically for electives outside your major or during unusually hard semesters. Our calculator can help you decide: if your projected grade is borderline B-/C+, P/F might protect your GPA; if it's solidly B+ or higher, the letter grade boosts GPA more.

Step 1: Enter your current grades and remaining assignments into the calculator. Run 'What do I need' mode with different targets (A-, B+, B) to see what's mathematically possible. Step 2: Focus study time on highest-weight remaining work — a 30%-weighted final has 3× the impact of a 10%-weighted quiz. Step 3: Check professor policies for dropped lowest grades, extra credit, resubmissions. Step 4: Attend office hours — often underused but can raise grades via clarification and participation credit. Step 5: Don't quit; even if A is impossible, the difference between a B- and a C+ can matter for scholarships and academic standing. Use the calculator iteratively as new grades come in.

Including ungraded categories as zeros. If the final exam hasn't happened, don't count it as a zero — normalize weights among completed work instead. Ignoring the +/- scale. 89.4% rounds to B+, not A-; 89.5% rounds to A- if your school rounds up. Check syllabus for the exact threshold. Mistaking absolute weight for relative. Homework 10 points and midterm 100 points aren't 10% and 100% weights — they're raw point values; the weight is what the syllabus assigns. Double-counting extra credit. If extra credit is already embedded in an individual assignment (e.g., 105/100 on a project), don't add the extra 5 as a separate boost. Assuming curves. Never plan based on an assumed curve — verify with your professor or past class averages. Miscalculating weighted GPA for AP. AP courses on a 5.0 scale need a different conversion — check your school's official chart.

Academic probation in US colleges typically triggers when cumulative GPA drops below 2.0 (though some schools require higher for scholarship retention — e.g., 3.0 for merit aid). Probation usually requires a specific GPA next semester to continue. Dean's List / Honor Roll thresholds vary: usually 3.5 GPA semester minimum with no grade below C. Latin honors at graduation: summa cum laude (~3.9+), magna cum laude (~3.75), cum laude (~3.5) — exact cutoffs differ by institution. International students often have stricter minimums tied to visa status. When you run this calculator, consider what the result means for these thresholds — not just the letter grade.