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Weighted average calculator

Compute a weighted GPA or class average from each grade and its credit hours or weight, including AP/Honors weighting.

Result
2.33 / 4
Weighted average

About this tool

Why use this tool

A weighted average calculator helps students and parents compute their GPA (Grade Point Average) or a weighted class average when different assignments carry different weights. In the US education system, a final grade typically combines homework, quizzes, midterms, finals and participation with varying percentages set by each teacher's syllabus. AP and Honors classes may add 1.0 to the standard 4.0 scale, producing weighted GPAs above 4.0. Understanding your true weighted average is critical for college admissions, scholarship eligibility and academic honors.

How it works

Weighted average = Σ(grade × weight) / Σ(weights). Enter each grade (on a 0–100 scale or 0.0–4.0 GPA scale) along with its weight (usually a percentage or credit-hour value). For GPA, US colleges convert letter grades: A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0. Multiply each course's grade points by its credit hours, sum the totals, divide by total credits. NACAC (National Association for College Admission Counseling) research shows GPA remains the #1 factor in admissions decisions.

Real example

A high school senior takes 5 classes: AP Calculus (A = 5.0 weighted, 1 credit), English (B+ = 3.3, 1 credit), Chemistry (A- = 3.7, 1 credit), History (B = 3.0, 1 credit), Spanish (A = 4.0, 1 credit). Weighted GPA = (5.0 + 3.3 + 3.7 + 3.0 + 4.0) / 5 = 3.80. Unweighted (AP counted as 4.0) = 3.60. Both figures appear on the transcript sent to colleges.

Practical tips

Track your GPA every semester using your school's Student Information System (PowerSchool, Infinite Campus, Aspen). Rigor matters as much as GPA: admissions officers at competitive colleges review your course load. A 3.7 with 5 APs often beats a 3.9 with all standard classes. Ivy League and top-20 schools typically expect a 3.9+ unweighted GPA. For scholarships, check the specific weighted vs. unweighted requirement. Use College Board's BigFuture and FAFSA4caster to model financial aid eligibility.

Disclaimer

This calculator provides a mathematical estimate. Actual GPA reported on your official transcript depends on your district's grading policy, weight added for AP/IB/Honors, plus/minus grading and rounding rules. NCAA Eligibility Center uses its own core-course GPA calculation for student-athletes. Verify with your school counselor or registrar. This tool is informational only and is not endorsed by the College Board, ACT or any admissions body.

Frequently asked questions

How is a weighted GPA calculated?⌄
A weighted average multiplies each grade by the credit hours (or weight) of that course, sums the results, then divides by the total credit hours. For example, an A (4.0) in a 4-credit course and a B (3.0) in a 2-credit course give (4.0×4 + 3.0×2) / 6 = 3.67. Our calculator performs this computation across all your courses automatically.
What is the difference between weighted and unweighted GPA?⌄
An unweighted GPA uses a 4.0 scale where an A is always 4.0 regardless of course difficulty. A weighted GPA gives extra points for Honors, AP, or IB classes, often on a 5.0 scale where an A in an AP course counts as 5.0. Many colleges recalculate GPAs using their own formula, so both figures matter on an application.
What GPA do I need for college admission?⌄
Community colleges and many state universities accept students with a GPA around 2.0-2.5, while competitive public universities typically look for 3.5 or higher. Highly selective private colleges often see admitted students averaging 3.9 or above on an unweighted scale. Course rigor, essays, and extracurriculars are weighed alongside GPA in holistic review.
How do plus and minus grades affect my GPA?⌄
Most US institutions assign 3.7 to an A-, 3.3 to a B+, 3.0 to a B, and so on down the scale. A single minus grade lowers your GPA less than a full letter drop but still has a measurable effect over many courses. Check your school's official grading scale, as a few institutions do not use plus/minus grading at all.
Can I raise my GPA by retaking a course?⌄
Many colleges allow grade replacement, where the new grade substitutes for the old one in the GPA calculation, though the original attempt remains on the transcript. Other schools average both attempts instead. Because policies vary widely, check your registrar's grade forgiveness rules before assuming a retake will fully repair your GPA.

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