GPA Calculator

GPA calculator: the complete guide to calculating your grade-point average

Your Grade Point Average is one of the most consequential numbers in your academic record. It determines scholarship eligibility, honour roll standing, transfer credit acceptance, graduate school admissions, and — increasingly — first-job interviews. Our GPA calculator applies the standard US 4.0 weighted formula and updates in real time as you add classes. Below is everything you need to know about the math behind the number, alternative scales used outside the US, and what counts as a competitive GPA in 2026.

The GPA formula

Every accredited GPA system is a weighted average of grade points times credit hours, divided by total credit hours:

GPA = Σ (grade points × credit hours) ÷ Σ (credit hours)

Each letter grade maps to a grade-point value. The most common US scale:

A+  4.0 (some schools 4.3)
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

A worked example

Suppose one semester you take four classes:

• Calculus II (4 credits, A) → 4.0 × 4 = 16.0 quality points
• English Composition (3 credits, B+) → 3.3 × 3 = 9.9 quality points
• Intro to Psychology (3 credits, A−) → 3.7 × 3 = 11.1 quality points
• Public Speaking (2 credits, B) → 3.0 × 2 = 6.0 quality points

Total quality points = 43.0. Total credits = 12. Semester GPA = 43.0 ÷ 12 = 3.58.

Notice that the credit weighting matters. If we ignored credits and just averaged the grade points (4.0 + 3.3 + 3.7 + 3.0) / 4 = 3.50, we'd get a slightly different answer. Always weight by credits — that's what your registrar does.

Unweighted vs weighted GPA

US high schools commonly publish both:

• Unweighted GPA: all classes count the same, scale capped at 4.0.
• Weighted GPA:honours classes earn +0.5 grade points, AP and IB classes earn +1.0 grade points. A student with all A's in 8 AP classes can post a weighted GPA of 5.0.

College admissions offices typically recalculate your GPA on a 4.0 unweighted scale to compare candidates fairly, then look at course rigour (AP / IB count) as a separate signal. So a 4.7 weighted at one high school and a 3.9 unweighted at another can easily represent the same student.

Cumulative GPA across multiple semesters

The most common GPA mistake is averaging semester GPAs together. That's wrong when semesters have different credit loads. The correct method:

1. Add up all quality points (grade × credits) across every semester ever.
2. Add up all credit hours ever attempted.
3. Divide.

Example: Semester 1 was 12 credits at 3.5 GPA (42 quality points). Semester 2 was 18 credits at 3.0 GPA (54 quality points). Total = 96 quality points / 30 credits = 3.20 cumulative GPA — not the (3.5 + 3.0) / 2 = 3.25 you'd get by averaging.

GPA scales around the world

• US: 4.0 scale (sometimes 4.3 with A+ as 4.3).
• UK: classified degrees instead of GPA — First (70%+), Upper Second (60–69%), Lower Second (50–59%), Third (40–49%).
• India / Pakistan: mostly 10-point CGPA or 4.0 scale at private universities. Conversion to US 4.0 is typically: CGPA × 0.4 (rough).
• Australia: 7-point scale (HD, D, C, P, F).
• Germany: inverted 1.0–5.0 scale where 1.0 is best, 4.0 is passing, 5.0 is fail.

What counts as a competitive GPA

• 2.0: US minimum for most undergraduate graduation. Below this is academic probation.
• 3.0:"solid B" — minimum for most graduate programmes, most honour societies, and many employer GPA filters.
• 3.5:competitive for most US graduate schools, dean's list at most undergraduate institutions.
• 3.7+: competitive for top-25 US universities and most law / medical schools.
• 3.9+: typical accepted GPA at Ivy League undergraduate and top-10 graduate programmes.

Beyond admissions, GPA matters for one or two early-career jobs (especially finance, consulting, and federal hiring) and almost nothing after that. Don't sacrifice learning, sleep, or extracurriculars for an incremental 0.1 on the GPA — the long-term return on those other investments is much higher.

How to raise a low GPA

The math is brutal. Your cumulative GPA is a weighted average across every credit you've ever taken, so the more credits you have, the less each new grade can move it. Going from 2.5 to 3.0 after 60 credits requires roughly 30 more credits of 4.0 work. After 120 credits, it's mathematically impossible to graduate with above a 3.25 from a 2.5 baseline. The actionable conclusion: focus early, and if you have a low semester, recover the next semester rather than letting it become a pattern.

Related calculators

• Percentage Calculator — for converting a percentage grade to a letter grade.
• Compound Interest Calculator — unrelated to GPA, but useful for projecting how scholarships compound.