What GPA Is 3 A's and 1 B? = 3.75

The exact GPA for 3 a's + 1 b — with the full calculation shown, what it means for your academic standing, and how it changes with different credit hours or weighted (AP/Honors) classes.

What GPA Is 3 A's and 1 B?

Assuming every class carries the same credit weight: 3 A's contribute 3×4.0 = 12.0 grade points, and 1 B contribute 1×3.0 = 3.0 grade points. Total: 15.0 grade points across 4 classes, for a GPA of 15.0 ÷ 4 = 3.75.

Does a Single B Hurt Your GPA Much?

Going from a perfect 4.0 down to 3.75 is a real but modest drop — 3 a's + 1 b is still a strong, highly competitive GPA at essentially every US college and for most scholarship and honors-program cutoffs (commonly 3.5–3.75). The gap matters more for the most selective merit scholarships and top-tier programs, where every hundredth of a point can count relative to other applicants.

How Do Credit Hours Change This Number?

The 3.75 figure assumes all 4 classes have equal credit weight. If your B were in higher-credit courses (like a 4-credit lab science) than your A's, your actual GPA would be slightly lower than 3.75 — and the reverse if the B were in lower-credit classes. For an exact figure with your real credit hours, use the full GPA calculator.

What If These Were Weighted (AP/Honors) Classes?

On a weighted 5.0 scale, an A in an AP class counts as 5.0 (not 4.0) and a B as 4.0 (not 3.0) — which would push 3 a's + 1 b meaningfully higher than 3.75. See the high school GPA calculator for the weighted version of this exact combination, or browse unweighted-to-weighted conversion examples.

Want a different mix? Try 4 A's + 2 B's (3.67 GPA), 3 A's + 4 B's (3.43 GPA), or enter any combination in the grade combination calculator.

Frequently Asked Questions

Assuming equal credit weight, 3 a's + 1 b averages to 3.75 GPA on a 4.0 scale — (3×4.0 + 1×3.0) ÷ 4 = 3.75.

Yes — 3.75 is a strong, competitive GPA at the great majority of US colleges and universities, and clears the bar for most merit scholarships (typically 3.0–3.5+) and honors consideration.

Yes. The 3.75 figure assumes equal credit weight across all 4 classes. If your credit hours differ per course, your exact GPA will be slightly different — use the full GPA calculator with your actual credit hours for a precise number.

A B+ is worth 3.3 grade points instead of 3.0 for a plain B — a 0.3-point difference per class. Re-run the combination in the grade combination calculator with B+ selected instead of B to see the exact effect on your GPA.

On a weighted 5.0 scale, each AP class adds +1.0 and each honors class adds +0.5 to its grade points — an A becomes 5.0, a B becomes 4.0. That would raise 3 a's + 1 b above 3.75. Use the high school GPA calculator for the weighted version.

Each grade converts to its standard grade-point value (A = 4.0, B = 3.0). Multiply each grade's point value by how many classes earned it, add the totals together, then divide by the total number of classes: (3×4.0 + 1×3.0) ÷ 4 = 3.75.

What GPA Is 3 A's and 1 B? — 3.75 GPA