Calculadora de GPA
Calcule sua média ponderada de pontos de notas (GPA) a partir de uma lista de disciplinas. Digite a nota de letra e as horas de crédito de cada disciplina, uma por linha, e obtenha seu GPA, total de horas de crédito e total de pontos de qualidade na escala padrão 4.0 (ou 4.3).
Entrada
Uma disciplina por linha como "Nome da Disciplina, Nota de Letra, Horas de Crédito". O nome da disciplina é opcional. Notas válidas: A+, A, A-, B+, B, B-, C+, C, C-, D+, D, D-, F.
Saída
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Guias
What this GPA calculator does
Your GPA (grade point average) is the weighted average of your course grades, where each grade is weighted by how many credit hours the course is worth. A four-credit class pulls on your GPA nearly twice as hard as a class worth two and a half credits, so a simple average of letter grades gets the answer wrong. This calculator does the weighting for you.
How to use it
Enter one course per line in the format:
Course Name, Letter Grade, Credit HoursFor example:
Biology, A, 4
Calculus, B+, 3
History, C, 3The course name is optional — A, 4 on its own works fine — and blank lines are ignored, so you can space things out. Choose your grading scale, and the result updates as you type. You'll get your weighted GPA, total credit hours, and total quality points (the sum of grade points × credits), plus a count of the courses included.
How GPA is calculated
For each course, the letter grade becomes a grade point on a numeric scale, which is multiplied by the course's credit hours to give its quality points:
GPA = Σ(grade point × credit hours) ÷ Σ(credit hours)So an A (4.0) in a 4-credit course contributes 16 quality points, while a B+ (3.3) in a 3-credit course contributes 9.9. Add up every course's quality points, divide by the total credit hours, and you have your weighted GPA.
The grading scales
The 4.0 scale is the US standard: A and A+ both equal 4.0, A- is 3.7, B+ is 3.3, B is 3.0, and so on down in 0.3–0.4 steps to F at 0.0. The 4.3 scale is identical except that an A+ is rewarded above a plain A, at 4.3 — the convention some universities use. Pick whichever your school reports.
Frequently asked questions
What's the difference between weighted and unweighted GPA here? This tool weights by credit hours, which is how nearly every college computes a term or cumulative GPA. It does not add honors/AP bonus points — that's a separate high-school "weighted GPA" convention.
Can I use half credits? Yes. Any positive number of credit hours is accepted, including values like 1.5 or 0.5.
Does it handle plus and minus grades? Yes — A-, B+, C-, and the rest all map to their standard grade points.
Privacy
Everything runs in your browser. Your grades are never uploaded or stored.
Use it from code
From 3 credits per callREST API
curl -X POST https://api.iotools.cloud/v1/tool/gpa-calculator \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"courses": "Biology, A, 4\nCalculus, B+, 3\nHistory, C, 3",
"scale": "4.0"
}'Swap in your own key from your account. The tool's fields are the body — no wrapper.
Ask an AI agent
Use the IOTools `gpa-calculator` tool (GPA Calculator) on this input:
YOUR_INPUT_HEREPaste this at any agent connected to the IOTools MCP server, then add your input.