GPA Converter
Convert a percentage, a letter grade, or a 4.0 GPA into the other formats — instantly, and free. Built for students filling in applications and scholarship forms that ask for a different format than the one on their transcript. No login needed.
Convert Your Grade
Pick a direction, enter your number, and press Convert. One honest note up front: converting a percentage to a letter or GPA is a straight lookup, but converting a GPA back to a percentage is only ever an estimate — a GPA is an average of grade points, not a single score. The tool labels those results as estimates, and the guide below explains why.
Letter grades use the standard scale: A+ 97–100, A 93–<97, A− 90–<93, B+ 87–<90, B 83–<87, B− 80–<83, C+ 77–<80, C 73–<77, C− 70–<73, D+ 67–<70, D 63–<67, D− 60–<63, F below 60. Grade points are on the 4.0 scale. Your school’s own scale decides the official grade — these are standard values.
Your transcript says 88%. The scholarship form asks for your GPA. The college application asks for a letter grade. This GPA converter translates a cumulative figure — a percentage, a letter grade, or a 4.0 GPA — into the other two formats on the standard US scale, in seconds.
This page converts a cumulative figure: one overall percentage, letter, or GPA for a course or a whole transcript. For a single test score, use our letter grade calculator instead. To work out your GPA from individual courses, use our GPA calculator or the cumulative GPA calculator.
How to Use the GPA Converter
Percentage to letter grade and GPA
- Pick the first tab, Percentage → Letter + GPA.
- Type your percentage, from 0 to 100. For example, 88.
- Press Convert. An 88% is a B+, worth 3.30 grade points.
This direction is a straight lookup: every percentage falls in exactly one letter band, and every letter has exactly one grade-point value.
Letter grade to percentage range and GPA
- Pick the second tab, Letter → % + GPA.
- Choose your letter grade — A+ down to F.
- Press Convert. A B, for example, covers 83.00% to under 87.00% and is worth 3.00 grade points.
A letter grade is a band, not a single number, so the answer is a range. If your form needs one number, the middle of the band is the usual choice — for a B that is about 85%.
GPA to percentage and letter grades
- Pick the third tab, GPA → % + Letter.
- Type your GPA, from 0 to 4.0. For example, 3.50.
- Press Convert. You will see an approximate percentage range and the letter grades it spans, clearly labelled as an estimate.
This is the direction where you must be careful. A GPA is an average of grade points across many courses, so it cannot be turned back into one exact percentage. The tool finds the two letter grades whose grade points bracket your GPA and gives you the percentage range across both. A 3.50 GPA sits between B+ (3.30) and A− (3.70), so it comes out as roughly 87% to 93% — letters B+ to A−. That is an estimate, not a fact about your transcript.
The Full Conversion Table
Every conversion on this page comes from this one table: the standard US letter-grade scale.
| Letter Grade | Percentage Range | Grade Points (4.0 Scale) |
|---|---|---|
| A+ | 97–100% | 4.00 |
| A | 93% to under 97% | 4.00 |
| A− | 90% to under 93% | 3.70 |
| B+ | 87% to under 90% | 3.30 |
| B | 83% to under 87% | 3.00 |
| B− | 80% to under 83% | 2.70 |
| C+ | 77% to under 80% | 2.30 |
| C | 73% to under 77% | 2.00 |
| C− | 70% to under 73% | 1.70 |
| D+ | 67% to under 70% | 1.30 |
| D | 63% to under 67% | 1.00 |
| D− | 60% to under 63% | 0.70 |
| F | Below 60% | 0.00 |
Two things to notice. First, A+ and A are both worth 4.00 grade points — there is no extra credit for a 98% over a 94%. Second, the steps between grade points are uneven: A− to B+ is a 0.40 jump (3.70 to 3.30), while B to B− is 0.30 (3.00 to 2.70). That uneven spacing is why a GPA cannot be converted back to a percentage exactly.
One honest note for the whole page: the letter grade and GPA depend on your school’s own scale. These are standard values, and most US schools use something very close to them, but some start A at 90%, some give A+ a 4.30, and some do not use plus and minus grades at all. For an official form, use the table your school publishes.
Worked Examples
Example 1: 88% → B+ → 3.30 grade points
88% falls in the B+ band, which runs from 87% to under 90%. So 88% is a B+, worth 3.30 grade points.
Example 2: Letter B → 83% to under 87% → 3.00 points
A B covers every percentage from 83% up to (but not including) 87%, so the converter gives you that whole range and the grade-point value of 3.00. An 83% and an 86% are both B’s — which is why converting a letter back to a percentage can only ever give you a range.
Example 3: GPA 3.50 → roughly 87–93%, letters B+ to A− (an estimate)
A GPA of 3.50 sits between two grade-point values: B+ at 3.30 and A− at 3.70. The converter takes the percentage range across both letters — B+ runs 87% to under 90%, A− runs 90% to under 93% — and reports roughly 87% to 93%, letters B+ to A−. It cannot tell you whether your 3.50 came from mostly B+’s with a few A−’s, or from a mix of A’s and C’s that happened to average out the same.
Example 4: 91% → A− → 3.70 grade points
91% falls in the A− band, which runs from 90% to under 93%. So 91% is an A−, worth 3.70 grade points — one point above the B+ cut-off at 90% and two points below the A cut-off at 93%.
Why GPA to Percentage Is Only an Estimate
Converting a percentage to a GPA is a lookup: 88% is a B+, a B+ is 3.30, done. Converting a GPA back to a percentage has no exact answer, for three reasons.
First, a GPA is an average, and averages hide the details. A 3.50 GPA could come from all B+’s and A−’s, or from a mix of A’s and C’s that average to the same number. The GPA is identical, but the percentage averages differ.
Second, the grade-point steps are uneven. The gap from A− (3.70) to B+ (3.30) is 0.40, while B (3.00) to B− (2.70) is 0.30, and the percentage bands are different widths. A GPA halfway between two grade points does not sit halfway between their percentages — the converter gives you the full range across both letters instead.
Third, different schools map the same numbers differently. One school’s A starts at 93%, another’s at 90%. Some award 4.30 for an A+, some cap at 4.00, and some use a weighted scale where an AP course can push the GPA above 4.0. The same 3.50 means something slightly different in each system.
When a form asks for a percentage and you only have a GPA, use the range the converter gives you — and if the form allows it, write the GPA itself with a short note, for example “3.50 on a 4.0 scale”, rather than inventing a single percentage.
Percentage vs GPA vs Letter Grade — When Each Format Is Used
| Format | Where You Will See It | What It Is Best For |
|---|---|---|
| Percentage | Test papers, report cards, class grades | Showing exactly how much of the material was correct — the most precise of the three |
| Letter grade | Transcripts, course results, report cards | Summarising a percentage into a band that is easy to read at a glance |
| GPA (4.0 scale) | College applications, scholarship forms, employers | Comparing students from different schools and courses on one common scale |
Percentages are the rawest form of a grade: how many marks you earned out of how many were possible. But they are hard to compare across schools — an 88% in a hard course and an 88% in an easy one look the same.
Letter grades group percentages into bands, so a B tells a reader “good, not excellent” without them having to know how the course was marked. The trade-off is precision: an 83% and an 86% are both B’s.
GPA turns the letters into numbers that can be averaged across a whole transcript — which is why colleges and scholarship committees ask for it. The trade-off is that the averaging hides even more: a 3.50 from straight B+’s and a 3.50 from a mix of A’s and C’s are the same number.
That is also why conversion matters. A form that asks for a GPA wants the summary; a form that asks for a percentage wants the detail. Keep the format the form actually wants — and say so plainly when a conversion is only an estimate.
Frequently Asked Questions
What GPA is an 85%?
An 85% is a B on the standard scale, which covers 83% to under 87%, so it is worth 3.00 grade points.
Is a 3.5 GPA good?
Generally, yes — a 3.50 GPA means your average grade is between a B+ (3.30) and an A− (3.70), which most colleges and scholarship committees read as a strong record. But “good” depends on context: the school you are applying to, the difficulty of your courses, and whether your GPA is weighted or unweighted.
Can I convert my GPA to a percentage exactly?
No — and any converter that gives you one exact number is guessing. A GPA is an average of grade points, and many different transcripts average to the same GPA, so the original percentage average cannot be recovered from the GPA alone. What you can get is a range: a 3.50 GPA is roughly 87% to 93%.
What is a 4.0 GPA as a percentage?
On the standard scale, a 4.00 GPA comes from A and A+ grades, which together cover 93% to 100%. A student who averaged 94% and one who averaged 99% both have a 4.00 GPA, because A (93% to under 97%) and A+ (97–100%) are both worth 4.00 points.
Does every school use the same conversion?
No. Most US schools use something very close to the standard scale on this page, but the details vary: some start A at 90% instead of 93%, some award 4.30 for an A+, some use a weighted scale where honours and AP courses can push the GPA above 4.0, and some do not use plus and minus grades at all.
Convert It, Then Check It
Converting a grade is quick, but the number you write on a form is worth a second look. If the form asks for a GPA, convert from your percentage or letter and write the points to two decimals. If it asks for a percentage and you only have a GPA, use the range and say it is an estimate — or write the GPA itself and let the reader convert it. For anything official, check it against your school’s own scale first.
To work out your GPA from your courses, use our GPA calculator or, for a whole transcript, the cumulative GPA calculator. High school students with weighted courses should try the high school GPA calculator, and if you only have a single test score, the letter grade calculator turns it into a letter in one step. Find every tool on the grade calculators hub.