GPA Calculator

Calculate your GPA from letter grades and credit hours. Cumulative 4.0 scale.

🎓 What is GPA?

GPA stands for Grade Point Average. It is a standardised measure of academic achievement used by schools and universities across the world. GPA is calculated by converting letter grades to numeric points (the "grade point" scale) and then computing a weighted average based on the number of credit hours each course carries.

The most widely used scale is the 4.0 scale, where A = 4.0, B = 3.0, C = 2.0, D = 1.0, and F = 0.0. A cumulative GPA of 4.0 means perfect grades in all courses. GPAs are used for academic honours lists, scholarship eligibility, graduate school applications, and job screening.

Because GPA is a credit-weighted average, a high-credit course like a 4-credit lab has more impact on your GPA than a 1-credit elective. This calculator accounts for credit hours automatically - just enter your letter grade and credit count for each course.

📐 GPA Formula

GPA = Σ(Grade Points × Credits) / Σ(Credits)

Grade Points = numeric value for your letter grade (A=4.0, B=3.0, C=2.0, D=1.0, F=0.0)

Credits = number of credit hours the course carries

A+ and A both = 4.0 (some institutions give A+ = 4.3)

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

📖 How to Use This Calculator

Steps

For each course, enter an optional course name, select the letter grade from the dropdown, and enter the number of credit hours.

Use "+ Add Course" to add more rows. Remove rows with the ✕ button.

Click Calculate GPA to see your GPA on the 4.0 scale, total credits, and total grade points.

💡 Example Calculations

Example 1 - Semester GPA

Calculus (4 credits, A), History (3 credits, B+), Chemistry (3 credits, B), English (2 credits, A−)

Grade points: A=4.0 × 4 = 16.0 | B+=3.3 × 3 = 9.9 | B=3.0 × 3 = 9.0 | A−=3.7 × 2 = 7.4

Total credits = 4+3+3+2 = 12 | Total points = 16.0+9.9+9.0+7.4 = 42.3

GPA = 42.3 / 12 = 3.525

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Example 2 - Mixed Performance

Physics (4 credits, C+), Literature (3 credits, A), Statistics (3 credits, B−)

Grade points: C+=2.3 × 4 = 9.2 | A=4.0 × 3 = 12.0 | B−=2.7 × 3 = 8.1

GPA = (9.2+12.0+8.1) / (4+3+3) = 29.3 / 10 = 2.93

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❓ Frequently Asked Questions

What is a good GPA?+

It depends on the context. 3.7–4.0 is generally considered excellent. 3.5+ qualifies for Dean's List at many universities. 3.0+ is considered "good" for most graduate school and job applications. Below 2.0 may trigger academic probation. For competitive graduate programmes (medicine, law, top MBA), a 3.5+ is often the minimum to be competitive.

How do I convert a percentage to GPA on a 4.0 scale?+

A common rule: 90-100% = 4.0, 80-89% = 3.0-3.9, 70-79% = 2.0-2.9, 60-69% = 1.0-1.9, below 60% = 0. Exact conversion varies by institution. Some universities use 95% = 4.0, others use 90% = 4.0. Check your institution's official grade-to-GPA table for the precise mapping.

Does a W (withdrawal) affect my GPA?+

A W (Withdrawal) does not affect your GPA in most US universities - it does not count as a grade. However, WF (Withdrawal Failing) counts as an F and lowers your GPA. Repeated withdrawals can affect academic standing and financial aid even without a GPA impact.

How many credit hours do I need to raise my GPA by 0.1?+

It depends on your current GPA and total credits earned. If you have 60 credits at 2.9 GPA, you need approximately 30 more credit hours with straight As (4.0) to reach 3.1. The more credits you have accumulated, the harder it is to move the needle - use this calculator to model exactly how many credits of what grade you need.

How do I calculate a cumulative GPA across multiple semesters?+

Add all your courses from all semesters into this calculator - it calculates the cumulative GPA automatically. Simply enter every course with its grade and credit hours. The formula is the same: total grade points earned divided by total credit hours attempted. Do not average your semester GPAs - that ignores different credit loads each semester and gives the wrong result.

Does retaking a course improve GPA?+

It depends on your institution's policy. Some schools use "grade forgiveness" or "grade replacement" where the original grade is removed from the GPA calculation and only the new grade counts. Other schools include both attempts (grade averaging). A few count only the best grade but keep both on the transcript. Check your registrar's policy before retaking a course specifically to improve GPA.

How does GPA compare to CGPA used in Indian universities?+

Indian universities often use a 10-point CGPA scale. The approximate conversion is: GPA (4.0 scale) = (CGPA − 0.5) × (4/9.5), or more simply, CGPA ≈ GPA × 2.5 (a rough guide). For example, a 3.5 GPA ≈ 8.75 CGPA. Many Indian institutions also define their own grade points and credit systems that differ from the US 4.0 scale - always check the specific institution's conversion chart.

What is the difference between weighted and unweighted GPA?+

An unweighted GPA treats all courses equally - an A in any class is 4.0. A weighted GPA adds extra points for harder courses: Advanced Placement (AP) or honors courses often count an A as 4.5 or 5.0. Weighted GPA is common in US high schools and recognizes academic rigor. Most colleges recalculate GPA on their own scale for admissions comparison. This calculator computes standard unweighted GPA; for weighted GPA, adjust the grade points for honors/AP courses manually before entering.

How do I convert a percentage grade to GPA?+

Common conversions: 90-100% = A (4.0), 80-89% = B (3.0), 70-79% = C (2.0), 60-69% = D (1.0), below 60% = F (0.0). Plus/minus grades add 0.3 increments: A- = 3.7, B+ = 3.3, B- = 2.7. Some schools use a 10-point scale (90+=A, 80+=B). Always check your institution's specific grading scale as it varies.

Does taking harder courses affect my GPA?+

On an unweighted GPA scale (most college GPAs), a B in an easy elective counts the same as a B in a hard major course. Weighted GPA systems (common in US high schools) add 0.5-1.0 points for AP/IB/honors courses. At college level, most GPAs are unweighted, so course difficulty does not protect GPA - but admissions committees and employers often consider course rigor alongside GPA.

How many credit hours does it take to raise my GPA significantly?+

Raising a GPA is slow because earlier grades have inertia. Example: after 60 credits with a 2.5 GPA, earning a 4.0 in the next 15 credits raises cumulative GPA to only 2.7. To raise from 2.5 to 3.0 in 30 more credits, you need a 4.0 average in all of them. This is why early performance matters so much - it takes many perfect semesters to offset a poor start.

🔗 Related Calculators

What is a good GPA?

On a 4.0 scale, a GPA of 3.5 and above is generally considered excellent (equivalent to mostly A grades). 3.0-3.49 is considered good. 2.5-2.99 is average. Below 2.0 may put you on academic probation at many universities. For competitive graduate programs, employers, and scholarships, a GPA of 3.5+ is often expected. Always contextualise GPA with course difficulty - a 3.5 in a rigorous major may be more impressive than a 3.8 in a less demanding program.

How is GPA calculated?

GPA = sum of (grade points x credit hours) divided by total credit hours. Each letter grade maps to grade points: A+ = 4.0, A = 4.0, A- = 3.7, B+ = 3.3, B = 3.0, B- = 2.7, C+ = 2.3, C = 2.0, D = 1.0, F = 0. Example: if you got A (4.0) in a 3-credit course and B (3.0) in a 4-credit course: GPA = (4.0x3 + 3.0x4) / (3+4) = (12+12) / 7 = 24/7 = 3.43.

Does GPA include failed courses?

Yes, failed courses (F grade = 0.0 grade points) are included in GPA calculations and significantly lower it. A failed 3-credit course adds 0 grade points but 3 credit hours to your denominator, reducing your GPA. Retaking a failed course and passing it helps but the original F may still appear on transcripts depending on your institution policy. Some schools allow grade forgiveness or replacement where the retaken grade replaces the F in GPA calculations.

What GPA do I need for graduate school admission?

Most graduate programs require a minimum undergraduate GPA of 3.0 on a 4.0 scale. Highly competitive programs (top law schools, MBA programs, medical schools) typically prefer 3.5-3.8+. However, GPA is rarely the sole criterion - test scores (GRE, GMAT, MCAT), research experience, recommendation letters, and personal statements also weigh heavily. A lower GPA can sometimes be offset by exceptional work experience or test scores.

How do I calculate my GPA if I have incomplete grades?

Incomplete grades (I) are typically excluded from GPA calculations until they are resolved. Only completed grades count. If you need to estimate your GPA including an in-progress course, assign your expected final letter grade for that course and calculate using this calculator. Once the course is complete and a final grade is assigned, recalculate your actual GPA.