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Semester GPA Calculator

Enter each course as credits and grade, one per line, to get your semester GPA.

How it is calculated

Enter one course per line as two numbers: the credits, then the grade already converted to grade points on a 4.0 scale (for example 3.7 for A-, depending on your school's table). Spaces, commas and semicolons all work as separators, and each line must hold exactly two numbers. A decimal comma is read as a decimal when the credits and the grade are separated by a space or a semicolon, so 3 3,7 means 3 credits and grade 3.7; 3, 3.7 works too. The tool computes GPA = Σ(credits × grade points) ÷ Σ(credits) and shows it with two decimals, plus the total credits. Letters such as A or B are not understood, so convert them first; a line with a missing or non-numeric value, or with three numbers such as 3 3 7, makes the whole result disappear. Credits cannot be negative and must add up to more than zero. A course with 0 credits adds nothing to either part. The tool does not apply any school's rules about repeats, pass/fail courses or rounding.

Worked example

Five courses: 4 credits at 3.7, 3 at 3.0, 3 at 4.0, 2 at 2.7 and 3 at 3.3. Step 1: quality points = 4×3.7 + 3×3.0 + 3×4.0 + 2×2.7 + 3×3.3 = 14.8 + 9 + 12 + 5.4 + 9.9 = 51.1. Step 2: total credits = 4 + 3 + 3 + 2 + 3 = 15.0. Step 3: 51.1 ÷ 15 = 3.4067, which is 3.41. A plain average of the five grades would be 3.34, lower because the biggest course carries the most weight here.

Try this example →

Common mistakes

  • Typing letter grades (A, B+) instead of grade points; the tool needs numbers like 4.0 or 3.3.
  • Averaging the grades without weighting by credits, which treats a 2-credit course like a 4-credit one.
  • Using your school's 4.3 or 5.0 scale numbers and then comparing the result with a 4.0 scale GPA.
  • Including courses from earlier semesters; this gives a semester figure, not a cumulative GPA.
  • Entering credits and grade in the wrong order on a line, so a 3.7 grade becomes 3.7 credits.

About this calculator

Semester GPA is a credit-weighted average: each course's letter grade is converted by you to grade points on a 4.0 scale (A = 4.0, B = 3.0, and so on, with variations for + / − grades depending on the institution), multiplied by that course's credit hours, and the sum of those quality points is divided by the total credit hours attempted — so a 4-credit course counts twice as much toward the average as a 2-credit course.

This calculator takes one course per line as a credits-and-grade pair, with the grade typed as grade points on the 4.0 scale (enter 3.7 for an A−, not the letter), and returns the resulting semester GPA. College and university students, and academic advisors use it to check standing before final grades post, verify eligibility for financial aid or Dean's List, and see how a hypothetical grade in an in-progress course would move the semester average.

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Comments (1)

  • Editorial team

    Use it for what-if planning: enter your finished courses, then add one extra line for a course still in progress and try a few grade values to see how far the semester average can move. A heavy course shifts it more than a light one. Keep exactly two numbers per line, credits then grade; 3 3,7 is read as 3 credits at grade 3.7. Which grade scale does your school use?

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