Letter Grade to GPA Converter
The full table below shows every letter at once.
Both ladders, in full
| Letter | Standard 4.0 | 4.33 convention |
|---|
Why two ladders exist
The scales answer the A+ question differently. The standard US convention caps the top of the scale: excellence is 4.0, and an A+ is a compliment rather than extra points. The 4.33 convention pays the A+ — 4.33 beats 4.0 — and shifts its minus steps to thirds (3.67, 3.33, 2.67) instead of tenths. Neither is more correct; they are different published rulers, and the same transcript reads differently on each. What matters is knowing which one your school runs, because a 3.67 and a 3.7 are the same A− wearing different scales.
Questions
What is the difference between the 4.0 and 4.33 scales?
On the standard 4.0 convention an A+ and an A both earn 4.0 - the scale is capped. On the 4.33 convention an A+ earns 4.33, above a plain A's 4.0, and the minus steps sit slightly differently (A- is 3.67 rather than 3.7). Both are published institutional scales, not variants this site invented.
Who uses the 4.33 scale?
It is best known as a Canadian convention - Simon Fraser University and Thompson Rivers University both publish A+ = 4.33 ladders. If your transcript can exceed 4.0 without weighting, you are probably on one.
Why do D+ and D- show a dash on the 4.33 column?
The 4.33 ladder shown here is SFU's published scale, which grades a plain D at 1.0 and no D+ or D-. Rather than invent values the institution does not publish, the converter shows a dash for letters that do not exist on that convention.
Can I edit these tables?
Not on this page - both ladders are fixed published references, and editing them would defeat the purpose of a citable conversion. To compute a GPA on a custom letter-to-points table, use the GPA calculator on this site, which is fully editable.
My school gives an A+ no extra credit. Which column applies?
The 4.0 column, where A+ and A are both 4.0. Some schools do not award an A+ at all, and a few US schools run their own 4.3-style variants - your registrar's published table is the only one that counts on a transcript.