GPA Calculator

What this calculator does

The GPA Calculator turns a list of courses into a grade point average. Each course has a credit value and a grade. The calculator converts the grade to grade points, multiplies those points by the course weight, adds the results, and divides by the total weight. This is the same credit-weighted average that many high schools and colleges use to report a semester or cumulative GPA.

You can enter letter grades such as A, B+, or C- or a numeric percentage from 0 to 100. Numeric grades are first converted to the matching letter grade on a standard 4.3 scale, then to grade points. The calculator also offers an equal-weight option that treats every course the same regardless of its credit value.

How to use this calculator

1. Choose whether the GPA should be credit-weighted or use equal course weights.
2. Enter one course per line in the form name, credits, grade.
3. Click Calculate.
4. Read the GPA, total credits, and quality points. The table shows how each course contributed.

The default example contains three courses: Math (3 credits, A), English (3 credits, B+), and History (2 credits, A-). The result is a GPA of 3.663 across 8 credits.

GPA formula

GPA = Σ(course weight × grade points) / Σ(course weight)

For the credit-weighted option, the course weight is the number of credits. For the equal-weight option, every course has a weight of 1. Grade points use this common scale:

A+ 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

Numeric percentages map to letters with the usual bands: 97–100 is A+, 93–96.99 is A, 90–92.99 is A-, and so on down to F below 60.

What the results mean

The headline GPA is the weighted average of your grade points. Total credits is the sum of the credit values you entered, including credits in the equal-weight calculation. Quality points are the sum of grade points multiplied by the selected weight. A higher credit course therefore has a larger effect on a credit-weighted GPA.

Assumptions and limitations

• The 4.3 grade point scale is a common scale, not a universal one. Some schools stop at 4.0 and do not award A+ points.
• Honors, Advanced Placement, International Baccalaureate, and other weighted-course bonuses are not applied automatically. Enter the adjusted grade or use the equal-weight option if that matches your school's policy.
• Pass/fail grades are rejected because schools treat them differently. Remove those courses or enter a numeric equivalent if your school assigns one.
• The calculator does not combine prior semesters automatically. Add prior courses to the list if you want a cumulative estimate.
• Course names may not contain commas because commas separate the fields.
• Always confirm the result against your school's official transcript or GPA policy.

Frequently asked questions

Is an A+ always worth 4.3 grade points?

No. The 4.3 value is common but not universal. Some institutions cap A+ at 4.0, while others do not use plus or minus grades at all. Check your school's grading policy before relying on the result.

How is a numeric grade handled?

A numeric grade is converted to the letter whose percentage band contains it. For example, 90 becomes A- and is worth 3.7 grade points. The original percentage is shown in the course table.

Does the number of credits matter?

Yes for the credit-weighted option. A 4-credit course has twice the influence of a 2-credit course with the same grade. Choose equal course weight if you want each course to count once.

Reference tables

Grade formats

Letter grade and GPA reference

GPA scales differ by institution. Some schools do not award A+ or D−, and some use different point values. Use your registrar's published scale.

Source

Reference: Calculator.net — GPA Calculator.

Disclaimer

This calculator provides an estimate for planning and comparison. Grading scales, credit rules, and grade point values vary by institution. Your school's official records control.