About the Letter Grade Converter
Letter Grade Converter answers the quick question that comes up on every report card: what does this score mean in the other grading language? Type a percentage to see its letter and GPA points, type a letter to see its points and percentage range, or type a GPA to see the letter it stands for. Choose between the common 4.0 scale with plus and minus grades (an A starts at 93) or the simple scale with whole letters (an A starts at 90), and switch the course level to add the usual half point for honors or one point for AP and IB classes. The full chart is shown next to the answer, with your row highlighted. It converts single grades; to average several courses into one GPA, use the GPA Calculator. Schools set their own cut-offs, so treat the result as the common standard and check your school's handbook for its exact table.
Updated September 2026
How to use the Letter Grade Converter
- 1Choose what you are converting from: Percent, Letter or GPA.
- 2Type the score, letter or GPA points.
- 3Pick the grading scale your school uses, and the course level if the class is honors or AP.
- 4Read the letter, GPA points and percent range in the result box, or find the highlighted row in the chart.
How the two scales differ
On the plus and minus scale every letter has three levels. A score of 93 to 100 is an A worth 4.0 points, 90 to 92 is an A- worth 3.7, and 87 to 89 is a B+ worth 3.3, and so on down to a D- at 60 to 62 and an F below 60. The simple scale has no plus or minus: 90 to 100 is an A, 80 to 89 a B, 70 to 79 a C, 60 to 69 a D, and anything below is an F.
The same score can therefore land on different GPA points. An 88 is a B+ (3.3) on the first scale and a B (3.0) on the second. Pick the scale printed on your school's grading policy, not the one that flatters you.
Converting a GPA back to a letter
A GPA such as 3.5 falls between two letters. This page takes the highest grade whose points do not go above your number, so 3.5 shows as a B+ (3.3 points) and 3.7 shows as an A-. That is the cautious reading: a GPA is an average over many grades, and an average of 3.5 does not mean you earned an A- in any single class.
Honors and AP weighting
Many schools add 0.5 points for honors courses and 1.0 for AP or IB courses, so an A in AP Biology counts as 5.0 on a weighted scale. Choose a course level and the result box and chart add the bonus. A failing grade never receives a bonus. Some schools cap the bonus, or only add it from a C upward; if yours does, use the plain numbers and apply your own rule. Once the letters are numbers, combine them with the GPA Calculator, and use the Percentage Calculator when a school asks for a percent. The Grade Calculator works out what a course grade is worth, and CGPA & GPA to Percentage gives a percent result.
Things to keep in mind
- Percent ranges here are the most common cut-offs, not a law. Some schools start an A at 92 or 95, and some count an F as anything under 65.
- This tool converts one grade at a time. Averaging several courses needs credit hours, which is what the GPA Calculator does.
- Universities outside the United States use other scales, such as a 10-point or 5-point CGPA. For those, use CGPA to Percentage.
- Always compare with your own transcript key before you quote a converted grade in an application.
Features
- Percent to letter and GPA, letter to GPA and percent range, GPA to letter
- Plus and minus scale (A- to D-) and a whole-letter scale
- Honors (+0.5) and AP / IB (+1.0) weighted GPA
- Full conversion chart with your grade highlighted
- Accepts decimals such as 92.6 and commas such as 92,6
- Runs in your browser and stores nothing
Frequently asked questions
What letter grade is an 87 percent?
On the plus and minus scale an 87 is a B+, worth 3.3 GPA points. On the simple scale with whole letters, an 87 is a B, worth 3.0. The page shows both if you switch the grading scale.
What GPA is an A-?
An A- is worth 3.7 points on the standard plus and minus scale and covers scores from 90 to 92 percent. The simple scale has no A-, and the page tells you so if you type one.
Is a 3.5 GPA a B+ or an A-?
This converter shows 3.5 as a B+, because it picks the highest letter whose points do not exceed your number. Since 3.5 sits exactly halfway between a B+ (3.3) and an A- (3.7), other sources may round it up. It is an average anyway, not a single grade.
How do honors and AP classes change the GPA?
The common rule adds 0.5 points for honors and 1.0 for AP or IB, so a B (3.0) becomes 3.5 or 4.0. Choose the course level and the tool adds it to the result and the chart. Your school may use a different bonus.
Why does my school's chart differ from this one?
There is no national rule for percent cut-offs. The ranges here are the widely used ones, but schools choose their own, for example an A from 92 or from 95. If the numbers disagree, your school's handbook is the one that counts.
Can I convert a percentage to a GPA out of 4.0?
Yes. Choose Percent, type the score, and read the GPA points next to the letter. A 92.6 percent, for instance, is an A- with 3.7 points on the plus and minus scale.
Does it store my grades?
No. The conversion happens as you type, inside the page, and nothing is sent or saved.