GPA Calculator – Calculate GPA Online Instantly
Use this free GPA calculator to calculate your semester GPA, cumulative GPA, and weighted GPA online in seconds. Enter your courses, letter grades, and credit hours — the calculator updates your GPA in real time. Below the tool, find a complete guide covering the GPA formula, 4.0 scale, worked examples, weighted GPA, and a GPA predictor to estimate your future GPA or find out what grades you need.
Semester GPA Calculator
GPA Calculator
Enter your courses, grades, and credits. Results update instantly.
The semester GPA calculator uses the standard 4.0 grading scale. Each letter grade converts to a grade point value (A = 4.0, B+ = 3.3, and so on). The grade points for each course are calculated by multiplying that value by the number of credit hours. Your GPA is the sum of all grade points divided by the sum of all credits.
Switch to Weighted mode to select Honors, AP, or IB course types for individual rows. This lets you mix standard, honors, and AP/IB courses in the same calculation — exactly how a weighted GPA works in high school.
Cumulative GPA Calculator
Your cumulative GPA covers every semester you have completed, not just the most recent one. To calculate it, enter your previous cumulative GPA and total credits below. The calculator combines those with the courses you entered above to show your updated cumulative GPA.
Cumulative GPA Calculator
Enter your existing GPA history — then use the Semester Calculator above for current courses.
Weighted vs. Unweighted GPA
Most US high schools report both a weighted GPA and an unweighted GPA. Understanding the difference is important when comparing your GPA to university requirements, which are almost always stated on the unweighted 4.0 scale.
Unweighted GPA (Standard 4.0 Scale)
An unweighted GPA treats all courses equally. An A in a standard English class gives the same 4.0 grade points as an A in an AP English class. The maximum GPA is 4.0. This is the scale used by virtually all colleges and universities in North America.
Weighted GPA
A weighted GPA gives extra grade points for harder courses to reflect their increased difficulty. The two most common weighted scales add:
- Honors courses: +0.5 grade points (A = 4.5, B = 3.5, max ≈ 4.5)
- AP and IB courses: +1.0 grade points (A = 5.0, B = 4.0, max = 5.0)
Comparison: Same Grades, Different Scales
Below is how the same course grades (A in Honors Math, B+ in AP History, B in English) produce different GPA values on each scale:
Use the Weighted mode in the semester calculator above to assign a course type (Standard, Honors, AP, or IB) to each row and see your weighted GPA alongside the grade point breakdown.
GPA Predictor & Estimator
The GPA predictor answers two questions students ask most: "What will my GPA be after this semester?" and "What grades do I need to reach my target GPA?" Choose your mode below.
GPA Predictor
Estimate your future GPA or find the grades you need to hit your target.
Upcoming Courses & Expected Grades
If the required semester GPA comes out above 4.0, the target is mathematically unachievable in one semester on a standard scale — you would need to extend the timeline or lower the target. If it comes out at or below zero, you have already surpassed your goal.
4.0 GPA Scale Chart – Letter Grades to Grade Points
The GPA scale maps letter grades to numerical grade point values. The chart below shows the full standard 4.0 scale plus the Honors (+0.5) and AP/IB (+1.0) weighted equivalents for every grade from A+ to F.
| Letter Grade | Percentage Range | Standard (4.0) | Honors (4.5 max) | AP / IB (5.0 max) | Grade Description |
|---|---|---|---|---|---|
| A+ | 97–100% | 4.0 | 4.5 | 5.0 | Excellent |
| A | 93–96% | 4.0 | 4.5 | 5.0 | Excellent |
| A− | 90–92% | 3.7 | 4.2 | 4.7 | Excellent |
| B+ | 87–89% | 3.3 | 3.8 | 4.3 | Above Average |
| B | 83–86% | 3.0 | 3.5 | 4.0 | Above Average |
| B− | 80–82% | 2.7 | 3.2 | 3.7 | Above Average |
| C+ | 77–79% | 2.3 | 2.8 | 3.3 | Average |
| C | 73–76% | 2.0 | 2.5 | 3.0 | Average |
| C− | 70–72% | 1.7 | 2.2 | 2.7 | Average |
| D+ | 67–69% | 1.3 | 1.8 | 2.3 | Below Average |
| D | 63–66% | 1.0 | 1.5 | 2.0 | Below Average |
| D− | 60–62% | 0.7 | 1.2 | 1.7 | Below Average |
| F | 0–59% | 0.0 | 0.0 | 0.0 | Failing |
What Is GPA? Meaning & Definition
GPA stands for Grade Point Average. It is a single number that summarises a student's academic performance across multiple courses by converting letter grades into a numerical scale and averaging them, weighted by credit hours. In the United States and Canada, the most widely used scale has a maximum of 4.0.
Why GPA Matters
GPA is used at nearly every stage of a student's academic journey:
- Academic standing: Most schools require a minimum GPA (often 2.0) to remain enrolled and in good standing.
- Scholarships and financial aid: Many merit-based awards require a GPA of 3.0 or higher to qualify or renew.
- University admissions: Colleges use GPA as a primary indicator of academic ability and work ethic.
- Graduate and professional school: Law schools, medical schools, and MBA programs treat GPA as a key screening criterion.
- Employment: Some employers — especially in finance, consulting, and technology — screen early-career applicants using a GPA cutoff of 3.0 or 3.5.
Official Transcript GPA vs. Estimated GPA
The GPA calculated by this tool is an estimate based on the grades and credits you enter. Your official GPA, as recorded on your academic transcript, may differ because:
- Your school may exclude certain courses (physical education, pass/fail credits, transfer credits) from the GPA calculation.
- Some schools use grade forgiveness or repeat policies that replace or exclude original grades.
- Different schools use different grade point values — for example, some institutions assign A+ a value of 4.3 rather than 4.0.
How to Calculate GPA – Formula & Step-by-Step Guide
- List every course with its letter grade and credit hours
Gather your official grade report or grade portal. Note the letter grade (A, B+, C−, etc.) and the credit hours (also called units or credit hours) for each course.
- Convert letter grades to grade point values
Use the 4.0 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 = 0.0. For weighted GPA, add 0.5 for Honors or 1.0 for AP/IB.
- Multiply each grade point value by the course credit hours
This gives the weighted grade points for that course. A B+ (3.3) in a 4-credit course contributes 3.3 × 4 = 13.2 grade points. A B+ in a 1-credit course contributes only 3.3 × 1 = 3.3 grade points. This is why credits matter — they weight each grade's contribution to your GPA.
- Add all weighted grade points together
Sum every course's grade points from step 3 to get your Total Grade Points for the semester.
- Add all credit hours together
Sum all course credit hours to get your Total Credit Hours for the semester.
- Divide total grade points by total credit hours
GPA = Total Grade Points ÷ Total Credit Hours. Round to two decimal places. This is your semester GPA on the 4.0 scale.
How Credits Affect GPA
Credit hours act as a weight in the GPA calculation. A 4-credit course has four times the influence on your GPA as a 1-credit course. This is why a poor grade in a high-credit course (such as a required 4-credit science lecture) can significantly lower your GPA, while the same grade in a 1-credit lab has a much smaller effect.
How Weighted Classes Change the Result
In weighted GPA calculations, Honors and AP/IB courses add bonus points before the multiplication step. An A in a standard 3-credit English class contributes 4.0 × 3 = 12.0 grade points. An A in an Honors 3-credit English class contributes 4.5 × 3 = 13.5 grade points — a full 1.5 extra points toward your weighted GPA total.
GPA Calculation Examples
Example 1 – Typical Semester GPA
Example 2 – Cumulative GPA Update
A student has a previous cumulative GPA of 3.20 over 45 credits. After the semester above (GPA 3.46, 13 credits):
New semester points = 3.46 × 13 = 45.0 (approx.)
Total points = 144.0 + 45.0 = 189.0
Total credits = 45 + 13 = 58
New cumulative GPA = 189.0 ÷ 58 = 3.259
Example 3 – Weighted High School GPA
| Course | Type | Grade | Credits | Std. Pts (4.0) | Weighted Pts (5.0) |
|---|---|---|---|---|---|
| Calculus | AP | A | 3 | 4.0 × 3 = 12.0 | 5.0 × 3 = 15.0 |
| English | Honors | B+ | 3 | 3.3 × 3 = 9.9 | 3.8 × 3 = 11.4 |
| History | Standard | A− | 3 | 3.7 × 3 = 11.1 | 3.7 × 3 = 11.1 |
| Chemistry | AP | B | 4 | 3.0 × 4 = 12.0 | 4.0 × 4 = 16.0 |
| Totals | — | — | 13 | 45.0 | 53.5 |
Unweighted GPA: 45.0 ÷ 13 = 3.46 | Weighted GPA: 53.5 ÷ 13 = 4.12
Example 4 – GPA Predictor (Target Mode)
A student has a 3.10 GPA over 45 credits and wants to reach a 3.30 GPA after this semester (15 credits).
Completed Points = 3.10 × 45 = 139.5
Required Points This Semester = 198.0 − 139.5 = 58.5
Required Semester GPA = 58.5 ÷ 15 = 3.90
GPA for University & College Admissions
University admissions offices look at GPA as one of their most important data points. Here is how GPA functions in the admissions process and what you should know before applying.
How Colleges Use GPA
- Minimum thresholds: Most 4-year universities require at least a 2.0 or 2.5 GPA for undergraduate admission. Community colleges generally accept students regardless of GPA.
- Competitive benchmarks: Top universities typically admit students with a 3.7–4.0 unweighted GPA. Mid-tier universities often accept 3.0–3.5. The range varies enormously by institution.
- GPA in context: Selective schools evaluate GPA alongside course rigor, standardised test scores, essays, and extracurricular activities. A 3.8 in all standard courses can look weaker than a 3.5 in all AP and IB courses.
- Grade trends: An upward GPA trend (starting lower and improving each year) is viewed positively and shows growth.
How Universities Recalculate GPA
Many colleges convert applicants' GPA onto their own scale during the review process. Common approaches include:
- Stripping out non-academic or elective courses (physical education, music, art) from the GPA calculation.
- Recalculating on a standard unweighted 4.0 scale, removing the Honors and AP bonuses.
- Using only core academic subjects: English, Mathematics, Science, Social Studies, and Foreign Language.
- Applying their own grade point conversions that may differ from your school's scale (e.g., assigning B+ a 3.4 instead of 3.3).
Estimated GPA vs. Transcript GPA
The GPA produced by this calculator is an estimate. Your official transcript GPA is authoritative and is determined by your school's registrar. If you are applying to university, always use your transcript GPA for applications. Use this calculator to understand your GPA, identify weak semesters, track progress, and plan the grades needed to reach your goals.
Common GPA Calculation Mistakes
- Forgetting to weight by credit hours. Simply averaging the grade point values without multiplying by credits first gives an inaccurate result. A 4-credit course counts more than a 1-credit course — always multiply grade points by credits before summing.
- Mixing weighted and unweighted scales. Applying a weighted scale (e.g., AP = 5.0) when a university asks for an unweighted GPA produces an inflated and misleading figure. Know which scale is being requested.
- Assuming every school uses the same GPA scale. Some institutions use a 4.33 scale (A+ = 4.33, A = 4.0). Others use a 4.0 scale where A+ = 4.0. This difference can change a GPA by several hundredths of a point and affect scholarship calculations.
- Confusing semester GPA with cumulative GPA. Semester GPA covers one term only. Cumulative GPA is the running average. When someone asks "what is your GPA?" in an admissions or employment context, they typically mean cumulative GPA.
- Using unofficial percentage-to-grade conversions. If your school gives percentage grades rather than letter grades, converting them to letter grades using a generic table may not match your school's official conversion. Use only your institution's published equivalency table.
- Ignoring repeated or excluded courses. If your school allows you to retake a course for grade replacement, the original grade may or may not be removed from GPA calculations depending on policy. Check before assuming.
- Calculating GPA including pass/fail or credit/no-credit courses. Most institutions exclude these from the GPA calculation. Including them will produce an incorrect result.
Frequently Asked Questions About GPA
Grade points for each course = Grade Point Value (e.g., A = 4.0, B+ = 3.3) × Course Credit Hours.
Example: A in a 3-credit course = 4.0 × 3 = 12.0 grade points. Add all grade points across all courses, then divide by total credit hours.
