How do I convert letters to grade points?

On the common US 4.0 scale: 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 = 1.0, F = 0.0. Enter the number that matches your grade.

Why do credits matter?

GPA is credit-weighted: a 4-credit course moves your GPA about twice as much as a 2-credit one. Enter each course's real credit hours for an accurate result.

Is this the same everywhere?

No — some schools use a 4.3, 4.5 or 5.0 scale, or weight honours courses. Confirm your institution's exact grade-point mapping.

GPA Calculator

The GPA calculator turns your courses into a grade point average on the standard 4.0 scale. For each course enter its grade points (A = 4.0, A− = 3.7, B+ = 3.3, and so on) and its credit hours. Courses worth more credits count more toward your GPA — the calculator handles the weighting for you and updates live as you type.

Course	Grade points	Credits

Result

The formula

GPA = Σ(gradePoints × credits) ÷ Σ(credits)

Multiply each course's grade points by its credit hours, add those together, then divide by the total credits. This is a credit-weighted average, shown to two decimal places. A typical 4.0 mapping is A = 4.0, A− = 3.7, B+ = 3.3, B = 3.0, B− = 2.7, C+ = 2.3, C = 2.0, D = 1.0, F = 0.0.

Worked example

Four courses: Biology 4.0 (3 credits), Calculus 3.0 (4), History 3.7 (3), English 3.3 (2).

Quality points = 4.0×3 + 3.0×4 + 3.7×3 + 3.3×2 = 12 + 12 + 11.1 + 6.6 = 41.7
Total credits = 3 + 4 + 3 + 2 = 12
GPA = 41.7 ÷ 12 = 3.48.

Frequently asked questions

How do I convert letters to grade points?: On the common US 4.0 scale: 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 = 1.0, F = 0.0. Enter the number that matches your grade.
Why do credits matter?: GPA is credit-weighted: a 4-credit course moves your GPA about twice as much as a 2-credit one. Enter each course's real credit hours for an accurate result.
Is this the same everywhere?: No — some schools use a 4.3, 4.5 or 5.0 scale, or weight honours courses. Confirm your institution's exact grade-point mapping.

Weighted grade

UK Degree Classification Boundaries

This reference page explains how UK undergraduate degrees are classified, with a credit-weighted average calcu...

Open calculator → GPA

US 4.0 GPA Scale — Letter, Percentage & Points

This reference page explains the standard US 4.0 GPA scale and how letter grades, percentages and grade points...

Open calculator →