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Grades & GPA

CGPA Calculator

Calculate cumulative GPA from credit-weighted grade points, keeping the grade scale explicit. Previous GPA and credits are included in the weighted total.

  • Explicit formulas and worked examples
  • Check your inputs, then calculate
  • Data is calculated in this browser only

Check the stated input format, calculation convention and limits before using the result.

Your inputs

Local calculation

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 CGPA Calculator

CGPA Calculator validates rows: grade points, credits (one course per line), maximum gpa scale, previous cumulative gpa, previous credits 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 CGPA Calculator?

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

Worked example

How can I reproduce the CGPA Calculator example?

CGPA Calculator baseline input: Rows: grade points, credits (one course per line): 4 3 / 3 3; Maximum GPA scale: 4; Previous cumulative GPA: 3.2; Previous credits: 30. Output: GPA = 3.25; Credits = 36; Quality points = 117. Substitute these values into the displayed equation to reproduce the result.

How to read the result

How should I interpret the CGPA 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 CGPA 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:

Understand the calculation

How to use it and the math behind it

Read the complete explanation

Four steps to check your inputs and results

  1. Calculate cumulative GPA from credit-weighted grade points, keeping the grade scale explicit. Previous GPA and credits are included in the weighted total.
  2. Enter Rows: grade points, credits (one course per line), Maximum GPA scale, Previous cumulative GPA, Previous credits in the stated format. Baseline values are for reproduction.
  3. 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.
  4. 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.

CGPA Calculator: calculation relationships

A prior cumulative GPA represents an existing weighted total. GPA 3 over 30 credits contains 90 quality points. Ten new credits at GPA 4 add 40 points, giving 130/40 = 3.25. Simply averaging 3 and 4 would overstate the effect of the smaller new term. Retake-replacement policies need adjustments to the supplied totals.

GPA = Σ(grade points × credits) / Σcredits

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

From question to result

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