Short answer. A 3.1 GPA is about 86% on the common US 4.0 scale. That is between a B (3.0) and a B+ (3.3). Schools set their own bands, so check yours.
What a 3.1 GPA is in percent
At 3.1, you are at or above the 3.0 that many programs ask for. That is solid B work on the 4.0 scale.
On the common US plus and minus scale, a 3.1 GPA falls between a B (3.0) and a B+ (3.3). The B band is 83% to 86% and the B+ band is 87% to 89%. A straight-line estimate between the middles of the two bands gives about 86%. The nearest single letter is B.
How other methods convert 3.1
There is no single official way to turn a GPA into a percentage. These are the methods you will see most often.
| Method | Result | Notes |
|---|---|---|
| Plus and minus scale (used on this site) | about 86% | The usual US bands, with a straight-line estimate between letters. |
| 10-point scale, no plus or minus | about 86% | A is 90 to 100, B is 80 to 89 and so on. Uses the middle of each band. |
| Simple proportion (GPA / 4 x 100) | 77.5% | Quick, but not a real grading scale. It runs low for most GPAs. |
The three methods give results from 78% to 86% for the same 3.1. That gap is large enough to matter on a form, so say which method you used. If a school or employer asks for a percentage, use the conversion your own school prints on its transcript or grading policy.
What grades give a 3.1
For example, 3 courses at B+ and 7 at B (all with the same credits) average 3.09, which rounds to about 3.1. Credits change the weight of each course, so a 4-credit class moves the average more than a 1-credit class.
These figures assume an unweighted 3.1. If your 3.1 is a weighted GPA that includes honors or AP points, the unweighted number behind it is lower, and so is the percent. Convert the unweighted GPA when a form asks for a percentage.
Next steps
The jump from a B record to a B+ record usually comes from one or two subjects. Find the classes that pull you down and give them more time.
Nearby values: 3.0 GPA to percentage | 3.2 GPA to percentage. See also What is a 3.1 GPA?, the GPA to percentage converter and the GPA scale chart.
Worked example
Example. Your transcript shows a 3.1 cumulative GPA and a form asks for a percent. On the plus and minus scale, write about 86%. If the form names a different scale, use that scale instead.
Questions
What percentage is a 3.1 GPA?
On the common US plus and minus scale, a 3.1 GPA is about 86%. Other methods give between 78% and 86%.
What letter grade is a 3.1 GPA?
A 3.1 is between a B (3.0) and a B+ (3.3) on the 4.0 scale. The nearest single letter is B.
Is 3.1 GPA to percentage the same at every school?
No. Schools set their own bands. Some give an A at 90%, and some have no plus or minus grades. Your school's grading policy is the official source.
Last checked by the StudyCount team.