Grade Combination to GPA Calculator

"What GPA is 5 A's and 1 B?" "What's my GPA with 3 A's and 4 B's?" This calculator answers exactly that — enter any mix of letter grades and get your GPA instantly, plus pre-computed answers for the most common combinations.

How Do I Calculate GPA From My Letter Grades?

If every class carries the same credit weight, your GPA is simply the average of your grade points: add up the grade-point value of every letter grade (A = 4.0, B = 3.0, and so on), then divide by the number of classes. This is exactly what the calculator above does — it does not account for different credit hours per class; for that, use the full GPA calculator, which lets you enter credit hours per course.

What GPA Is a Specific Combination of Grades?

Some of the most commonly asked combinations, assuming equal credit weight:

Combination	GPA (4.0 scale)
5 A's + 1 B	3.83
5 A's + 2 B's	3.71
4 A's + 2 B's	3.67
3 A's + 1 B	3.75
3 A's + 4 B's	3.43

Don't see your exact combination? Use the calculator above — it works for any mix of A, A−, B+, B, B−, C+, C, C−, D, and F.

Does a B+ Count Differently From a Plain B?

Yes — on the standard scale used across this site, B+ = 3.3 and B = 3.0 (B− is 2.7). The plus/minus distinction is worth roughly 0.3 grade points either way, which matters more than it seems once you're averaging across 5–7 classes. See the full letter grade to grade point scale for every value.

How Do Credit Hours Change This Calculation?

The moment your classes have different credit values (a 4-credit lab science vs. a 1-credit seminar, for example), the equal-weight calculation above stops being exact. A B in a 4-credit class pulls your GPA down more than a B in a 1-credit class. If your schedule has mixed credit hours, use the full GPA calculator, which lets you enter each course's credit hours individually.

What If My Classes Are Weighted (AP/Honors)?

Weighted GPA adds a bonus (commonly +1.0 for AP/IB, +0.5 for honors) to each qualifying course's grade points before averaging — so an A in an AP class effectively counts as a 5.0 instead of a 4.0. That changes every combination above. See unweighted-to-weighted conversion examples or use the high school GPA calculator, which handles AP/honors weighting directly.

Frequently Asked Questions

Assuming equal credit weight, 5 A's (4.0 each) and 1 B (3.0) average to 3.83 GPA — (5×4.0 + 1×3.0) ÷ 6 = 3.83.

No, but it does move you off a perfect 4.0. One B among five A's brings you to 3.83 — still an excellent GPA, and well within the range considered highly competitive for most college and scholarship applications.

Each letter grade converts to a grade-point value (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). If every class has equal credit weight, GPA is simply the average of those values. If credit hours differ per class, each grade point is multiplied by its course's credit hours first, then divided by total credits.

B+ = 3.3 grade points and B = 3.0 — a 0.3 point difference per class. Across several classes this adds up: five B+ classes average 0.3 points higher than five B classes on the same 4.0 scale.

Yes — the calculator above (and the combinations table) assumes every class carries the same credit weight, which is the simplest and most common way this question gets asked. For an exact GPA that accounts for different credit hours per course, use the full GPA calculator.

AP/IB classes commonly add +1.0 to the grade points earned (an A becomes a 5.0) and honors classes add +0.5, on the standard weighted 5.0 scale. This changes every combination on this page — see the high school GPA calculator for a version that handles weighting directly.

Grade Combination to GPA Calculator — Any Mix, Instant GPA