Percentage to Letter Grade Calculator
Not sure what letter a score earns? Type a percentage below and the matching grade appears right away, decimals included.
Underneath the calculator you'll find the full conversion chart with GPA values, a table of common test scores such as 18 out of 30, and notes on how grading scales differ between schools and countries.
How the conversion works
Percentage → matched against a grading scale range → Letter GradeExample: a score of 95% sits inside the 93-96% band, so it comes out as an A on the usual scale.
How to Use the Calculator
Here's how to turn a percentage into a letter grade in three steps:
- Type in the percentage from a test, an assignment, or a whole course.
- Click Calculate Grade to run the conversion.
- Check the result the matching letter grade appears, using the standard scale.
For example, entering 95 returns an A, entering 87 returns a B+, and entering 76 returns a C. The result appears as soon as you click Calculate Grade.
Percentage to Letter Grade Conversion Chart
Here's a general grade chart showing how percentages typically map to letters and their rough GPA equivalents:
| Percentage Range | Letter Grade | GPA Equivalent |
|---|---|---|
| 97–100% | A+ | 4.0 |
| 93–96% | A | 4.0 |
| 90–92% | A- | 3.7 |
| 87–89% | B+ | 3.3 |
| 83–86% | B | 3.0 |
| 80–82% | B- | 2.7 |
| 77–79% | C+ | 2.3 |
| 73–76% | C | 2.0 |
| 70–72% | C- | 1.7 |
| 67–69% | D+ | 1.3 |
| 63–66% | D | 1.0 |
| 60–62% | D- | 0.7 |
| Below 60% | F | 0.0 |
Keep in mind this chart reflects one common standard grading scale, actual cutoffs can vary between schools, colleges, and countries, so it's always worth checking a specific institution's policy.
US Grading Scale: Letter Grade Thresholds
Instead of a range, this shows the minimum percentage needed to reach each letter grade on the standard US A–F plus/minus scale, useful for quickly checking whether a score cleared the next threshold up.
| Letter Grade | Minimum Percentage Needed | GPA Equivalent |
|---|---|---|
| A+ | 97% | 4.0 |
| A | 93% | 4.0 |
| A- | 90% | 3.7 |
| B+ | 87% | 3.3 |
| B | 83% | 3.0 |
| B- | 80% | 2.7 |
| C+ | 77% | 2.3 |
| C | 73% | 2.0 |
| C- | 70% | 1.7 |
| D+ | 67% | 1.3 |
| D | 63% | 1.0 |
| D- | 60% | 0.7 |
| F | Below 60% | 0.0 |
Letter Grade Percentage Chart — Quick Lookup
A condensed version for eyeballing a score without doing any math, handy for quickly grading a stack of papers or checking a single result.
| Score | Letter Grade |
|---|---|
| 100% | A+ |
| 95% | A |
| 90% | A- |
| 85% | B |
| 80% | B- |
| 75% | C |
| 70% | C- |
| 65% | D |
| 60% | D- |
| Below 60% | F |
Common Decimal Percentages — Letter Grade Reference
Scores rarely land on a clean whole number. Here's how some frequently seen decimal percentages convert on the standard scale:
| Decimal Percentage | Letter Grade | GPA Equivalent |
|---|---|---|
| 99.5% | A+ | 4.0 |
| 94.3% | A | 4.0 |
| 91.25% | A- | 3.7 |
| 88.7% | B+ | 3.3 |
| 87.5% | B+ | 3.3 |
| 84.6% | B | 3.0 |
| 81.2% | B- | 2.7 |
| 78.9% | C+ | 2.3 |
| 75.5% | C | 2.0 |
| 71.8% | C- | 1.7 |
| 68.4% | D+ | 1.3 |
| 64.1% | D | 1.0 |
| 59.9% | F | 0.0 |
The calculator above handles any decimal value automatically, so there's no need to round a score up or down before checking it.
How to Convert a Percentage to a Letter Grade by Hand
Converting a score by hand comes down to finding which range a percentage falls into on the grading scale being used. A few quick examples:
- 95% falls in the top range, so it becomes an A.
- 87% lands in the upper-middle range, earning a B+.
- 76% sits in the middle range, resulting in a C.
The exact letter grade always depends on which grading scale a school or instructor has adopted, since not every institution draws the lines in the same place.
For weighted averages and final-exam math, read the grade calculator guide.
Common Percentage to Letter Grade Scales
Most schools rely on a standard A–F scale, but plus/minus grading (A-, B+, C-, and so on) is common too, especially in colleges. Some institutions add extra nuance with an alternative grading system, while others keep things simple with straight letters and no modifiers. Because of these differences, it's worth checking a school's official grading policy before assuming a result applies everywhere.
Why the Same Score Can Mean Something Completely Different Across Countries
A 75% is a solid grade in one country and a top-tier score in another. Grading philosophy, not just the cutoff numbers, varies widely around the world:
| Country | Typical Passing Mark | What a High Score Looks Like | Notes |
|---|---|---|---|
| United States | ~60–65% | 90%+ is usually an A | Plus/minus grading is common; scales vary by school and state. |
| United Kingdom | ~40% | 70%+ is a First-Class result | Percentages are compressed at the top; 70%+ is considered excellent, unlike the US. |
| India | ~33–40% | 90%+ for top honors | Some boards mark strictly, making 90%+ a rare and highly competitive result. |
| Australia | ~50% | 85%+ is a High Distinction | University grading often uses bands (Pass, Credit, Distinction, High Distinction) alongside percentages. |
| Germany | ~50% (varies) | A numeric 1.0 is the best grade | Many German institutions use a 1–6 numeric scale instead of percentages or letters entirely. |
| Canada | ~50–60% | 80%+ is typically an A range | Similar in spirit to the US scale, but exact provincial and school cutoffs differ. |
Because grading philosophy differs this much, a percentage-to-letter-grade conversion is only ever accurate within the grading system it was designed for. Always check the official scale for the specific country or institution before comparing scores across borders.
Common Test Scores as Letter Grades
Teachers and students often start with points rather than a percentage. Divide the points earned by the total, multiply by 100, then match the result to the scale above. Here are frequent examples:
| Score | Percentage | Letter Grade |
|---|---|---|
| 6 out of 10 | 60% | D- |
| 7 out of 10 | 70% | C- |
| 8 out of 10 | 80% | B- |
| 9 out of 10 | 90% | A- |
| 15 out of 20 | 75% | C |
| 17 out of 20 | 85% | B |
| 18 out of 20 | 90% | A- |
| 18 out of 30 | 60% | D- |
| 24 out of 30 | 80% | B- |
| 27 out of 30 | 90% | A- |
| 40 out of 50 | 80% | B- |
| 45 out of 50 | 90% | A- |
| 128 out of 150 | 85.3% | B |
| 13 out of 14 | 92.9% | A- |
Grading a whole class by question count? The quick grade calculator turns the number of wrong answers into a grade for every student.
Percentage vs Letter Grade
A percentage grade gives the exact share of points a student earned, while a letter grade turns that figure into a simple label like B or C. Schools convert percentages into letters because they're easier to interpret at a glance and simpler to compare across different assignments. Teachers often work with the raw numerical grade when calculating scores, while students and parents tend to think in terms of the letter that summarizes performance.
GPA and Letter Grades
Letter grades connect directly to GPA, since each letter typically corresponds to a set number of grade points. An A might equal 4.0, a B roughly 3.0, and so on down the scale, a 3.5 GPA, for example, usually sits between a B+ and an A- average.
It's worth remembering that these scales differ from one school to another, so a score doesn't always convert to the same value everywhere. Anyone unsure how their school handles this should check their institution's official GPA scale directly.
More Grade Calculators Worth Knowing
Who Can Use a Percentage to Letter Grade Calculator?
This tool is useful for more than just students:
- Students checking test scores and assignment results.
- Teachers converting scores while grading exams.
- Parents keeping an eye on academic performance.
- Tutors and educators who need quick, reliable conversions.
- Anyone who just needs a fast answer without doing the math manually.
Frequently Asked Questions
How do I convert a percentage to a letter grade?
Look up your percentage in the conversion chart above, or enter it in the calculator to see the letter grade. For example, 87% is a B+ and 76% is a C on the plus/minus scale.
What letter grade is 90%?
90% is an A- on the plus/minus scale used here, and an A on a simple A-F scale where 90 is the cutoff.
What letter grade is 80%?
80% is a B- on the plus/minus scale, and a B on a simple A-F scale.
What letter grade is 70%?
70% is a C- on the plus/minus scale, and a C on a simple A-F scale.
Is 60% a passing grade?
60% is a D- on this scale, which is the lowest passing grade at many schools. Some schools require a higher minimum, so check your school's policy.
What percentage is an A?
On this page's scale, an A starts at 93%, an A- at 90%, and an A+ at 97%. On a simple A-F scale, an A starts at 90%.
Can I convert a decimal percentage to a letter grade?
Yes. Enter a value such as 87.5 and the calculator returns B+, with no rounding needed.
Does every school use the same grading scale?
No. Schools, colleges, and countries set their own cutoffs, so confirm with your school's grading policy.
How does a letter grade relate to GPA?
Each letter maps to a GPA value. On the usual 4.0 scale, A is 4.0, B is 3.0, and C is 2.0, with steps in between such as 3.7 for A- and 3.3 for B+. Your school may use different values.
Converting a score by hand takes time and invites small mistakes, but this calculator turns that process into a single click. Since scales can vary from one school or one country to the next, it's always worth confirming the exact cutoffs that apply. Enter a percentage above to find the matching letter grade.