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Weighted GPA Calculator

GPA with honors/AP weighting.

How it is calculated

The tool does not take individual grades. For each course level you enter the average unweighted GPA of those courses and the total credits: regular, honors and AP. It then adds a bonus to the grade points of the honors and AP levels, +0.5 for honors and +1.0 for AP, and takes a credit-weighted average: weighted GPA = (Σ (GPA + bonus) × credits) / Σ credits. The result has 3 decimals. A level is only counted when both its GPA and a credit value above zero are entered, so a GPA without credits is silently ignored. At least one complete level is needed. These bonuses are a common US convention, and your school may use different ones.

Worked example

Regular: GPA 3.5 over 12 credits gives 3.5 × 12 = 42. Honors: GPA 3.7 plus 0.5 is 4.2, times 6 credits = 25.2. AP: GPA 3.3 plus 1.0 is 4.3, times 4 credits = 17.2. Total grade points: 42 + 25.2 + 17.2 = 84.4. Total credits: 12 + 6 + 4 = 22. Divide: 84.4 / 22 = 3.836 as a weighted GPA, compared with an unweighted average of (42 + 22.2 + 13.2) / 22 = 3.518.

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Common mistakes

  • Entering a GPA that already includes the weighting. The tool adds the 0.5 or 1.0 bonus itself, so give the plain unweighted GPA of the honors or AP courses or the bonus will be counted twice.
  • Filling in a GPA but leaving the credits blank. That level is skipped completely and the result silently changes.
  • Averaging the three GPAs without weighting by credits. A 3-credit and a 12-credit course are not equally important.
  • Entering a GPA from a different scale, for example 85 or 9.2 out of 10. No range check is made, so it will give a meaningless number; this tool assumes the common 4.0 scale.

About this calculator

A weighted GPA gives extra credit for taking harder courses by boosting the grade points earned in classes above the standard curriculum — commonly adding 0.5 points for honors courses and a full 1.0 point for AP (Advanced Placement) or IB courses, on top of the normal 4.0 scale where an A = 4, B = 3, and so on. A student earning a B in an AP class, for example, would receive 4.0 weighted grade points instead of the unweighted 3.0, reflecting the added rigor of the course.

US high schools use weighted GPA to encourage students to challenge themselves academically without being penalized on their transcript relative to peers who take easier classes, and many colleges specifically look at weighted GPA (alongside the unweighted figure) during admissions to gauge course rigor. Guidance counselors and students track it throughout high school to plan course loads, aim for scholarship thresholds, and predict class rank.

This calculator takes your average GPA and total credits for each level — regular, honors and AP — adds 0.5 to the honors average and 1.0 to the AP average, and returns your credit-weighted GPA. Leave a level blank if you took no courses at it.

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