Grade Calculator & GPA Calculator
Grading rules aren’t the same from one school to the next, and doing the math by hand is where most mistakes creep in. Convert scores to letter grades, work out your GPA with real credit hours, and find the exact score you need on your final — all in one place.
- No sign-up required
- Shows the full calculation
- Works for grades and GPA
- Free, unlimited use
Grade Calculator Pro
Fast, accurate, and easy grading
Final Result
Grading Chart
| # Wrong | Grade |
|---|
| # | Grade (%) | Weight (%) |
|---|---|---|
| 1 |
Current Weighted Average
GPA Calculator
Add each course with its letter grade and credit hours. Your GPA updates as you type.
This gives an unofficial estimate using the standard 4.0 plus/minus scale. Your school’s exact scale, rounding rules, and repeat-course policy may differ — check your transcript for the official number.
How to Use This Grade & GPA Calculator
Pick Grade or GPA mode
Use Grade mode for a single class's percentage or weighted average. Use GPA mode for your overall grade point average across multiple classes or semesters.
Enter your scores
Add your scores and weights in Grade mode, or your letter grades and credit hours in GPA mode. Add as many rows as you need.
Read your result instantly
See your current grade, letter grade, and — in GPA mode — the quality points behind each course, so you can see exactly how the number was built.
That last point matters more than it sounds like it should. A lot of students land on a GPA calculator after their number didn't match what their school portal showed them, and the usual reason is they can't see the working. We show it — see why your GPA might not match your transcript further down this page.
How to Calculate Your Grade Percentage
The basic version of this is simple: divide the points you earned by the total points possible, then multiply by 100.
(42 ÷ 50) × 100 = 84%
Under most U.S. grading scales, 84% lands as a B. That's the whole calculation for a single assignment — the complexity shows up once a course has multiple categories that don't all count equally, which is where a weighted average comes in, covered below.
How to Calculate Your GPA (Credit Hours & Quality Points)
This is the part most "grade calculators" skip, and it's the actual math colleges and high schools use to produce a GPA — not just an average of percentages, but a credit-weighted average of grade points.
- Grade Points — the numeric value assigned to your letter grade (A = 4.0, B = 3.0, and so on)
- Quality Points — Grade Points × Credit Hours for that course
- Credit Hours — how many credits the course is worth
A 4-credit course pulls more weight in your GPA than a 1-credit elective, because it contributes more quality points either way — up or down. This is why two students with the same letter grades can end up with different GPAs if their credit loads differ.
| Course | Credits | Grade | Grade Points | Quality Points |
|---|---|---|---|---|
| English 101 | 3 | A | 4.0 | 12.0 |
| College Algebra | 4 | B+ | 3.3 | 13.2 |
| Intro Psychology | 3 | A- | 3.7 | 11.1 |
| Biology Lab | 2 | C+ | 2.3 | 4.6 |
| Total | 12 | — | — | 40.9 |
Run the same math with more semesters added in and you get your cumulative GPA — the number colleges, scholarship committees, and academic standing policies actually look at, as opposed to a single semester's GPA on its own.
Grade Percentage, Letter Grade & GPA Chart
Here's the standard U.S. scale most schools use as a baseline. Some schools adjust the exact percentage cutoffs, so treat this as the common convention, not a universal rule — always check your syllabus or catalog for your school's exact scale.
| Letter Grade | Percentage | GPA (4.0 Scale) |
|---|---|---|
| A | 93–100% | 4.0 |
| A- | 90–92% | 3.7 |
| B+ | 87–89% | 3.3 |
| B | 83–86% | 3.0 |
| B- | 80–82% | 2.7 |
| C+ | 77–79% | 2.3 |
| C | 73–76% | 2.0 |
| C- | 70–72% | 1.7 |
| D+ | 67–69% | 1.3 |
| D | 65–66% | 1.0 |
| D- | 60–64% | 0.7 |
| F | Below 60% | 0.0 |
A simpler A–F / 90-80-70-60 scale (no plus/minus) is also common, especially at the high school level. Some colleges use a 4.33 scale where an A+ is worth more than a straight A. If your school's scale isn't listed here, use GPA mode above and enter your actual letter grades — the calculator applies the correct grade points automatically.
How to Calculate a Weighted Grade
Most real classes don't grade everything equally — homework might be worth less than exams. A weighted average accounts for that.
Example course breakdown: Homework 30% · Midterm Exam 30% · Final Exam 40%
Your scores: Homework 88%, Midterm 82%, Final 91%
= 26.4 + 24.6 + 36.4 = 87.4% (a B+)
Quick sanity check: your category weights need to add up to 100%. If your syllabus lists weights that don't total 100, normalize them first — divide each weight by the total, then multiply by 100 — or let the calculator above do that step for you.
What Score Do I Need on My Final Exam?
This is one of the most common reasons students end up here, especially in the last two or three weeks of a semester.
90 = (84 × 0.60) + (Final Score × 0.40)
Final Score = 99%
That's a demanding target — exactly the kind of thing worth knowing three weeks out rather than the night before. Enter your current average, your final's weight, and your target grade into the calculator above and it solves this instantly. Prefer a dedicated page for this? Try the Final Grade Calculator.
Weighted vs. Unweighted GPA — What's the Difference
An unweighted GPA uses the standard 4.0 scale for every class, regardless of difficulty. An A is a 4.0 whether it's in a regular class or an AP class.
A weighted GPA gives extra credit for harder courses — Honors, AP, IB, or dual-enrollment classes are typically worth more than a 4.0 for the same letter grade. A common weighting adds one full point for AP/IB courses (an A becomes a 5.0) and a half point for Honors (an A becomes a 4.5), though the exact bump varies by district and school. This is why a student can have a weighted GPA above 4.0 while their unweighted GPA still sits below it — both numbers are correct, they're just measuring different things.
Why Your GPA Calculator Might Not Match Your Official Transcript
This is worth addressing directly, because it's the single most common frustration students run into with any GPA calculator, not just this one. If the number here doesn't match what your school portal shows, it's almost always one of these:
- Pass/Fail courses. A Pass typically adds credit hours toward graduation but doesn't affect GPA at all. A Fail (or NP) usually counts as a 0.0, which does pull your GPA down.
- Withdrawals. A standard withdrawal (W) generally doesn't touch your GPA. A withdraw-fail (WF) sometimes counts as an F, depending on the school.
- Repeated courses. Some schools replace the old grade in your GPA when you retake a class; others average both attempts. This single difference alone can shift a GPA by several tenths of a point.
- Transfer credits. These usually count toward your total credits and degree progress, but many schools exclude the grades themselves from your institutional GPA.
- Incomplete grades (I). These typically sit outside your GPA calculation until a final grade is submitted.
- Rounding. Some schools round to the nearest tenth or hundredth; others don't. A 3.48 might show as 3.5 in one system and 3.48 in another — both are correct, just formatted differently.
If your number still looks wrong after checking these, the most reliable fix is pulling your official quality points and GPA hours straight from your transcript rather than reconstructing them by hand — small early rounding errors compound as you add more semesters.
GPA for International Students
If you studied outside the U.S., your grades likely weren't on a 4.0 scale to begin with. Percentage-based systems, 10-point or 12-point scales, and CGPA/SGPA systems are common across South Asia and elsewhere, and they don't convert to a U.S. GPA using one universal formula — the right conversion depends on your country and, often, your specific institution's grading policy.
As a general starting point, most U.S. institutions treat a percentage in the low-to-mid 90s as equivalent to a 4.0, with the scale sliding down from there — but this varies enough between schools that it's worth checking how your target university handles foreign transcripts before assuming a conversion. If you're coming from a system that reports SGPA and CGPA rather than a percentage, those aren't interchangeable either — SGPA reflects a single semester, CGPA is cumulative across all semesters, and U.S. schools generally want the cumulative figure.
What Is a Good GPA?
It depends entirely on what you're using it for, but as a general baseline:
These ranges are common conventions, not fixed rules — your school's specific requirements for scholarships, Dean's List, or academic standing always take precedence over a general guideline like this one.
Every Way You Might Need to Calculate a Grade
Frequently Asked Questions
Is a 93% a 4.0 GPA?
Under the common plus/minus scale, yes: 93% and above typically falls in the A range, worth a full 4.0. Some schools set the A cutoff slightly differently (90% in a simpler A to F scale, for example), so it is worth confirming against your own syllabus.
Is an 80% a 3.0 GPA?
Not usually. Under the standard plus/minus scale, 80 to 82% typically falls as a B-, worth 2.7 grade points, not a flat 3.0. An 80% only equals a 3.0 GPA on a simpler scale that does not use plus/minus grading. Check which version your school uses before assuming.
Is an 89% a 3.5 GPA?
Generally no. 89% typically lands as a B+ under the standard scale, which is worth 3.3 grade points. A 3.5 is not a standard single-letter-grade value on most plus/minus scales, it usually only appears as an average across multiple courses.
What is a 2.2 GPA?
That sits between a C (2.0) and a C+ (2.3), a low C average overall. It is below the 3.0 baseline many schools consider good standing, though it is not typically low enough on its own to trigger academic probation, which is usually set closer to 2.0.
Does Pass/Fail affect my GPA?
A Pass usually does not affect your GPA at all, it counts toward your credits without changing the number. A Fail typically does count, usually as a 0.0, the same as an F.
What is the difference between weighted and unweighted GPA?
Unweighted GPA scores every class on the same 4.0 scale regardless of difficulty. Weighted GPA gives extra grade points for harder courses like AP, IB, or Honors, which is why a weighted GPA can go above 4.0 while the unweighted version for the same transcript stays at or below it.
Why does my GPA calculator show a different number than my school portal?
Almost always one of a handful of specific policy differences: how your school handles repeated courses, pass/fail grades, withdrawals, or rounding. See the section above on why a GPA calculator might not match an official transcript; it is usually one of those, not a math error.
Can I use this calculator for both grade and GPA?
Yes. Grade mode handles a single class percentage or weighted average, and GPA mode handles your overall grade point average across multiple classes or semesters using real credit hours.
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Whether you are checking where you stand on a single test or figuring out your full semester GPA, the calculator above handles the math instantly and shows you exactly how it got there.
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