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Letter Grade to GPA Converter
See the GPA points and percentage range behind any letter grade.
StudentsAwarded for 87–89% on the US plus/minus scale. The same percentage range is a A in Canada and a HD band in Australia.
Letter grades are shorthand. Behind every letter sits a grade-point value used in GPA calculations and a percentage band it was awarded from. Pick a letter and this converter shows its value on the 4.0 scale, its percentage range on the US plus/minus scale, and the Canadian and Australian equivalents, which is the quickest way to answer questions like what a B+ is actually worth.
How to use the Letter Grade to GPA Converter
- Select a letter grade.
- Read its GPA points on the 4.0 scale.
- Check its percentage range and the equivalent grades in Canada and Australia.
- Repeat for each grade on your report card to estimate your GPA by hand.
Formula
Plus grades add roughly 0.3 points (B+ = 3.3) and minus grades subtract 0.3 (B- = 2.7). The exceptions are A+, which is capped at 4.0 at most schools, and F, which has no plus or minus.
Worked example
A B+ converts to 3.3 grade points and represents a percentage between 87% and 89%. If that B+ came in a 3-credit course, it contributes 3.3 x 3 = 9.9 grade points toward your GPA, compared with 9.0 for a plain B.
Good to know
Students often average letters by eye and get the GPA wrong, because the steps are not even in percentage terms: the gap between B (83-86%) and B+ (87-89%) is small in marks but a full 0.3 in grade points. A single plus grade in a high-credit course can move a semester GPA by several hundredths. Some schools, including a number of Canadian universities, use a 4.33 scale where A+ is worth 4.33; the Canada GPA Calculator handles that variant directly.
US grading scale reference
The table below is the US plus/minus scale used across this site. Where this tool offers other scales, the Canadian scale sets an A from 85% with a pass at 50%, and the Australian scale uses the bands HD (85%+), D (75-84%), C (65-74%), P (50-64%) and F (below 50%) on a 7.0 GPA.
| Letter grade | Percentage | GPA points |
|---|---|---|
| A+ | 97–100% | 4.0 |
| A | 93–96% | 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 | 63–66% | 1.0 |
| D- | 60–62% | 0.7 |
| F | 0–59% | 0.0 |
Frequently asked questions
How many GPA points is a B+?
A B+ is worth 3.3 grade points on the standard 4.0 scale, and it is awarded for scores of 87-89% on the US plus/minus scale.
Is an A+ worth more than an A?
On the standard 4.0 scale, no: both are capped at 4.0. On a 4.33 scale, used by some Canadian universities, an A+ is worth 4.33 while an A is 4.0.
What letter grade is a 3.5 GPA?
A 3.5 sits halfway between B+ (3.3) and A- (3.7), so it represents a mix of those grades across courses rather than a single letter.
How many points is an F worth?
Zero. An F contributes no grade points but its credit hours still count in the denominator, which is why one F lowers a GPA so sharply.
Can I convert my whole report card here?
You can look up each letter one at a time, but the GPA Calculator is faster: enter every course with its credits and it does the weighted average for you.
Go deeper
Prefer the full walkthrough? Read our guide: How to Calculate Your GPA, Step by Step — it explains the method step by step with more worked examples.
Sources & further reading
- College Board BigFuture — How to Calculate Your GPA on a 4.0 Scale — The most widely cited US reference for letter-grade to 4.0-scale conversion.
- National Center for Education Statistics (US Department of Education) — Official US education data on grading, attainment and outcomes.
Related tools
Last reviewed: November 2026. Results from this calculator are estimates based on the published scales above; your school's recorded grade is the official one.