How do you convert GPA to letter grades?

On a standard 4.0 scale: 4.0 = A, 3.0 = B, 2.0 = C, 1.0 = D, 0.0 = F. Many schools also use plus/minus grades with finer ranges, such as 3.7 = A- or 3.3 = B+. Because institutions set their own cutoffs, always check your school's official grading policy before reporting a conversion.

What percentage equals what letter grade?

A widely used U.S. mapping is A = 90–100%, B = 80–89%, C = 70–79%, D = 60–69%, and F = below 60%. Some schools use a seven-point scale instead (for example A = 93–100%, B = 85–92%, C = 77–84%, D = 70–76%, F below 70%), which shifts every cutoff. Honors, IB, or AP courses sometimes use different bands. Always confirm the chart in your handbook, syllabus, or portal before converting grades for transcripts or college applications.

Are all grading scales the same?

No—grading scales differ widely between institutions and even between departments. Some schools use a standard 4.0 scale, others use a 5.0 scale for weighted or honors courses, and percentage cutoffs for each letter grade can shift by several points. When transferring credits or applying to graduate programs, always verify which scale the receiving institution expects.

How do I convert a 5.0 weighted GPA to a 4.0 scale?

Use the 5.0 scale option in the converter. For unweighted equivalent, A=4.0, B=3.0, etc. Weighted A (5.0) often maps to 4.0 when reporting to colleges that use a 4.0 scale.

What about plus and minus grades?

Many schools use plus and minus (A−, B+, etc.). On a typical 4.0 scale, a plus usually adds about 0.3 to the whole-letter GPA point value and a minus subtracts about 0.3—exact numbers vary by district. Common examples: B = 3.0, B+ ≈ 3.3, B− ≈ 2.7; A− is often around 3.7. Some schools omit A+ or cap quality points at 4.0. Our converter supports common plus/minus tables; verify your institution’s official grade-point chart for reporting.

Grade Converter — GPA, Letter Grades & Percentages

Different portals show different formats: Canvas might show percent, the registrar shows GPA, and rubrics use letters. A converter keeps you from mentally juggling three tables during registration panic.

Pick the scale that matches your school—4.0 unweighted, 5.0 weighted, or common percentage bands—then enter any one value to see the others. When policies differ (especially at A+/A boundaries), trust your handbook over any generic chart.

After converting, plug values into the GPA calculator or grade calculator for full course modeling.

Quick Answer:

GPA to letter: 4.0 = A, 3.0 = B, 2.0 = C, 1.0 = D, below 1.0 = F. Letter to percentage: A 90–100%, B 80–89%, etc. Enter one value below and get the rest in any scale (4.0 or 5.0).

Convert From

Input Type

Enter Percentage

Conversion Results

Enter a grade to see conversions

How to use this calculator

Select input type. Percent, letter, or GPA—whichever you already know.
Pick the grading scale. Weighted 5.0 vs standard 4.0 changes mappings.
Enter the value. Use the precise number from your portal when possible.
Read all outputs. Cross-check against syllabus cutoffs.
Document edge cases. Note when your school uses nonstandard +/- ranges.

How it works

The tool applies published mapping tables between representations. It performs deterministic math, not interpretation of your institution's rounding or grade forgiveness policies.

Common grade conversion reference

Schools in the United States typically use one of two GPA scales. On the standard 4.0 scale, an A equals 4.0, a B equals 3.0, a C equals 2.0, a D equals 1.0, and an F equals 0.0. Plus and minus modifiers shift each value by roughly 0.3 points — for example, a B+ is 3.3 and a B- is 2.7.

Weighted scales, commonly 5.0 or 6.0, add an extra point for honors, AP, or IB courses. An A in a regular class is still 4.0, but an A in AP is 5.0 on a weighted scale. Percentage-to-letter conversions also vary: most schools set A at 90-100%, B at 80-89%, C at 70-79%, and D at 60-69%, though some use a 7-point scale where A starts at 93%.

When transferring credits between institutions, always check the receiving school's conversion policy. A 3.5 GPA from one college might map to different letter grades depending on whether the target school uses plus/minus grading or a straight letter system. This calculator lets you compare across all common scales so you can anticipate how your grades will translate.

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