The standard U.S. GPA scale runs from 0.0 to 4.0, with each letter grade assigned a fixed point value — an A is worth 4.0, a B is worth 3.0, and so on. But “the” GPA scale isn’t actually one single standard: schools vary on whether they use plus/minus grading, whether an A+ is worth more than a straight A, and how weighted courses factor in. This page covers every common version.
Calculate My GPAStandard GPA Scale (Plus/Minus)
This is the most widely used scale at the college level. Grades in between whole letters (A-, B+, and so on) are worth fractional points, usually in increments of 0.3 or 0.33.
| Letter Grade | Percentage | GPA Points |
|---|---|---|
| A | 93–100% | 4.0 |
| A- | 90–92% | 3.7 |
| B+ | 87–89% | 3.3 |
| B | 83–86% | 3.0 |
| B- | 80–82% | 2.7 |
| C+ | 77–79% | 2.3 |
| C | 73–76% | 2.0 |
| C- | 70–72% | 1.7 |
| D+ | 67–69% | 1.3 |
| D | 65–66% | 1.0 |
| D- | 60–64% | 0.7 |
| F | Below 60% | 0.0 |
Simple GPA Scale (No Plus/Minus)
Common at the high school level and at some colleges, this version uses only whole-letter grades — no plus or minus distinctions.
| Letter Grade | Percentage | GPA Points |
|---|---|---|
| A | 90–100% | 4.0 |
| B | 80–89% | 3.0 |
| C | 70–79% | 2.0 |
| D | 60–69% | 1.0 |
| F | Below 60% | 0.0 |
4.33 Scale (With A+)
Some schools give an A+ extra value above a straight A, using a scale that runs up to 4.33 instead of capping at 4.0. Not all schools do this — many cap A+ at the same 4.0 as a regular A, so check your own school’s policy before assuming.
| Letter Grade | GPA Points |
|---|---|
| A+ | 4.33 (or 4.0, depending on school) |
| A | 4.0 |
| A- | 3.7 |
Weighted GPA Scale (Honors, AP, IB)
Weighted scales give extra points for harder courses, which is why a weighted GPA can exceed 4.0. A common convention adds a full point for AP or IB courses and a half point for Honors, though the exact bump varies by school district.
| Letter Grade | Regular | Honors | AP / IB |
|---|---|---|---|
| A | 4.0 | 4.5 | 5.0 |
| B | 3.0 | 3.5 | 4.0 |
| C | 2.0 | 2.5 | 3.0 |
| D | 1.0 | 1.5 | 2.0 |
| F | 0.0 | 0.0 | 0.0 |
This is one common convention, not a universal standard — some schools weight differently or cap weighted GPA at a maximum value. Check your school’s specific policy.
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Frequently Asked Questions
What is the standard GPA scale?
The standard U.S. GPA scale runs from 0.0 to 4.0, where A = 4.0, B = 3.0, C = 2.0, D = 1.0, and F = 0.0. Most schools use plus/minus grading within that range, adding or subtracting roughly 0.3 for a plus or minus.
Is a 3.0 GPA good?
A 3.0 GPA corresponds to a B average and is generally considered solid — it is commonly cited as the baseline for good academic standing at many schools, though competitive programs and scholarships often look for higher.
Can a GPA go above 4.0?
Yes, on a weighted scale. Schools that give extra points for Honors, AP, or IB courses can produce a weighted GPA above 4.0, even though the unweighted GPA for the same transcript stays at or below 4.0.
Is an A+ worth more than an A?
It depends on the school. Some use a 4.33 scale where A+ is worth more than a straight 4.0 A; others cap A+ at the same 4.0 value as a regular A. Check your school’s specific grading policy.
Do all schools use the same GPA scale?
No. While the 0.0 to 4.0 range is the most common convention, schools vary on plus/minus grading, whether A+ counts for extra, and how weighted courses are calculated. Always confirm against your own school’s catalog for the exact scale.
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