GPA Converter

Grades, explained

GPA Converter to 4.0 Scale

Enter a percentage, a GPA on another scale such as 5.0, 10 or 20, or a letter grade, and see it on the US 4.0 scale. Every result shows which method produced it, because there is no single official conversion. Use it to get a sense of where a grade lands, then follow the rules of the school or evaluator that will read it.

Grades you enter stay in this browser and are not uploaded or saved. Results are estimates: there is no single official conversion, and the school or credential evaluator reading your grades decides how they are converted. Check with them before you rely on a number.

How this converter gets its numbers

There is no single official way to convert a grade to the 4.0 scale. This page shows two methods and labels each one, so you can see how much the choice matters.

  • College Board table: for percentages, the bands published by College Board BigFuture (A 90-100 = 4.0, B 80-89 = 3.0, C 70-79 = 2.0, D 66-69 = 1.0, below 65 = 0.0). College Board describes this as one commonly used system and says schools differ.
  • Letter table: for letter grades, the plus/minus points published by one university registrar (A 4.0, A- 3.7, B+ 3.3, B 3.0, B- 2.7, C+ 2.3, C 2.0, C- 1.7, D+ 1.3, D 1.0, F 0.0). A+ is your choice of 4.0 or 4.3, because schools differ.
  • Proportional scaling: grade divided by the scale maximum, times 4. It is a rough comparison, useful for scales such as 5.0, 10 or 20 where no table is attached, and it is not a method any school is required to use.

Rounding and edge cases

Percentages are rounded to the nearest whole number before the table lookup, with .5 rounding up, so 89.5 is treated as 90 and becomes an A. College Board lists D as 66-69 and F as below 65, which leaves 65 unlisted; this tool treats a rounded 65 as D and says so in the result. Averages for a list of courses are weighted by credits and rounded only at the end, to two decimals.

Before you use a result

A converted number is an estimate. Schools and credential evaluators set their own rules, and many colleges recalculate GPA from your transcript. For an official application, use the school's or evaluator's method. The weighted GPA calculator, the percentage page and the CGPA page on this site cover those related cases.

Sources and further reading

More ways to convert

Related calculators.

02

Percentage to GPA Converter (4.0 Scale)

Turn a percentage grade into a letter and a 4.0 GPA value using the College Board table, or average several courses by credits. Method shown with every result.

03

Weighted and Unweighted GPA Calculator

Add your classes, letter grades, levels and credits to see weighted and unweighted GPA side by side. Honors, AP/IB and dual-enrollment bonuses are editable.

04

CGPA to GPA Converter (10-Point to 4.0)

Convert a 10-point CGPA to a 4.0 value by proportional scaling, plus the CBSE indicative percentage (9.5 x CGPA). Estimates only; check the receiving school.

The studio notebook

A useful place to begin.

Clear steps, considered details, and ideas you can put to use.

01

How GPA scales work in the US: 4.0, 4.3 and weighted 5.0

A plain explanation of the common US GPA scales, how letters become points, and why the same grades can produce different GPAs at different schools.

02

Converting international grades for US applications

Why converting grades from another country is not a single formula, what credential evaluators do, and how to prepare before you apply.

03

Weighted vs unweighted GPA: what colleges look at

The difference between weighted and unweighted GPA, and what is publicly known about how colleges treat each one.

04

How to calculate GPA by hand, with credits

A worked example that shows how to turn letter grades and credits into a GPA, and why credits change the answer.

05

Percentage vs letter grades: why conversion tables differ

Why one percentage can be a different letter, and a different 4.0 value, at different schools.

06

What to put on applications when your school uses a different scale

How to approach GPA fields on college applications when your school does not use a 4.0 scale.

A few helpful answers

Before you begin.

Is there an official way to convert my GPA to the 4.0 scale?

No. Schools, colleges and credential evaluators each use their own rules. This converter shows a published table where one applies and a proportional estimate, and labels both.

Which table does the percentage conversion use?

The College Board BigFuture bands: A 90-100 = 4.0, B 80-89 = 3.0, C 70-79 = 2.0, D 66-69 = 1.0, and below 65 = 0.0. College Board notes that schools differ. Percentages round to the nearest whole number, with .5 rounding up.

Why do I see two different 4.0 values?

The table puts every grade in a band into one value, while proportional scaling (grade divided by the maximum, times 4) is smooth. The table is shown only where it is defined, which is percentages and letter grades.

Can I convert a 10-point or 5-point GPA?

Yes, as a proportional estimate. Pick the scale, enter the grade, and read the proportional value. The College Board table is not applied to scales other than 100, and a result is not what a college will compute.

What does a credential evaluator do differently?

Evaluators such as WES convert course by course using country-specific tables. Their results can differ from any simple formula, so use the evaluator's method if an application requires it.

Should I report a converted GPA on the Common App?

Report what the application asks for, usually the GPA and scale your school uses. College Board notes that many colleges ask for your actual grades so they can recalculate on their own scale. Check each college's instructions.

Are my grades saved or uploaded?

No. Calculations run in your browser and nothing you enter is uploaded or saved. Use the download or print buttons if you want to keep a summary.