Grades & GPA

GPA Calculator

Calculate GPA from credit-weighted grade points, keeping the grade scale explicit. Convert letter grades using your institution’s own scale before entering them.

Explicit formulas and worked examples
Check your inputs, then calculate
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Check the stated input format, calculation convention and limits before using the result.

Check the example inputs, then calculate. Your values stay in this browser.

No institution-specific A–F conversion or honors bonus is assumed.

Calculation notes

Understand the GPA Calculator

GPA Calculator validates rows: grade points, credits (one course per line), maximum gpa scale before applying the displayed equation. No institution-specific A–F conversion or honors bonus is assumed.

Formula and logic

What is the formula for the GPA Calculator?

GPA Calculator: GPA = Σ(grade points × credits) / Σcredits. Input definitions: rows = Rows: grade points, credits (one course per line); scale = Maximum GPA scale. Use the selected convention throughout the calculation.

Worked example

How can I reproduce the GPA Calculator example?

GPA Calculator baseline input: Rows: grade points, credits (one course per line): 4 3 / 3 3; Maximum GPA scale: 4. Output: GPA = 3.5; Credits = 6; Quality points = 21. Substitute these values into the displayed equation to reproduce the result.

How to read the result

How should I interpret the GPA Calculator result?

Read gpa with its stated unit and convention. The default example and the independent worked scenario use different inputs, so compare the assumptions before comparing the numbers.
Change one input at a time and use the equation to explain the result; do not mix unit, grade-scale, time-zone or rounding conventions across comparisons.

Limits and assumptions

What limits apply to the GPA Calculator?

No institution-specific A–F conversion or honors bonus is assumed.
Zero-credit courses add no weight. The result uses only supplied courses and prior credits.

Content and calculation reviewed: 2026-10-11

Understand the calculation

How to use it and the math behind it

Read the complete explanation

Four steps to check your inputs and results

Calculate GPA from credit-weighted grade points, keeping the grade scale explicit. Convert letter grades using your institution’s own scale before entering them.
Enter Rows: grade points, credits (one course per line), Maximum GPA scale in the stated format. Baseline values are for reproduction.
Check the output unit and convention: Read gpa with its stated unit and convention. The default example and the independent worked scenario use different inputs, so compare the assumptions before comparing the numbers.
Change one input and compare the result. No institution-specific A–F conversion or honors bonus is assumed. Zero-credit courses add no weight. The result uses only supplied courses and prior credits.

GPA Calculator: calculation relationships

Multiply each grade point by its course credits before summing. With 4 points for one credit and 2 points for three credits, the numerator is 4×1 + 2×3 = 10 and the denominator is 4 credits: GPA = 2.5, not the unweighted mean of 3. Zero-grade courses still add credits to the denominator.

GPA = Σ(grade points × credits) / Σcredits

The detailed guide adds variable definitions, a reproducible example, a practice question and model limitations.

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