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    GPA Calculator

    Calculate your Grade Point Average based on course grades and credit hours

    Course 1
    Course 2
    Course 3

    How It Works

    Overview

    Your Grade Point Average (GPA) is the standard way schools summarize academic performance into a single number. It's a credit-weighted average of your course grades on a 4.0 scale (A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0). Because it's weighted by credits, a 4-credit class affects your GPA more than a 1-credit class.

    GPA shows up everywhere: scholarship applications, honor roll, college admissions, grad-school admissions, and even some employers' first-job hiring screens. This calculator handles weighted-by-credit math, supports any number of courses, and tells you the equivalent letter grade.

    The Formula

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

    Each grade is converted to a numeric value on the 4.0 scale:

    • A or 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

    "Quality points" for each course = grade points × credit hours. Sum quality points and credit hours separately, then divide.

    Worked Example

    One semester with four classes:

    • Calculus I — A (4.0) — 4 credits → 16 quality points
    • English Lit — B+ (3.3) — 3 credits → 9.9 quality points
    • Chemistry — A− (3.7) — 4 credits → 14.8 quality points
    • History — B (3.0) — 3 credits → 9 quality points
    • Total: 49.7 quality points / 14 credits
    • GPA = 49.7 ÷ 14 = 3.55

    When to Use This

    • End-of-semester — checking your GPA before grades are officially posted.
    • Mid-term planning — figuring out which classes need the most focus to hit your target.
    • Course selection — projecting how a possible C in a hard elective would affect cumulative GPA.
    • Transfer applications — calculating GPA on the receiving school's grading system.
    • Scholarship eligibility — many require a minimum GPA each semester.

    Common Mistakes to Avoid

    • Averaging semester GPAs. Always re-aggregate from quality points and credits — averaging GPAs ignores credit weighting.
    • Ignoring +/− grades. An A− is 3.7, not 4.0. Including these correctly can shift your GPA by ~0.1.
    • Mixing weighted and unweighted. Don't compare a 4.5 weighted high-school GPA to a 4.0 college unweighted GPA.
    • Forgetting failed courses. An F counts as 0 in the average — and the credits are still in the denominator (unless retaken under a replacement policy).
    • Not asking about repeat policies. Many schools let you replace a failed course's GPA impact by retaking it. Check your registrar.

    Frequently Asked Questions

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