What Is the Difference Between Weighted and Unweighted GPA?

The difference between weighted and unweighted GPA is simple. A weighted GPA counts how hard your classes were, and an unweighted GPA does not. An unweighted GPA gives every class the same value on a 4.0 scale.

A weighted GPA adds extra points for tougher classes like honors and AP, so it can go above 4.0. This guide explains both with a clear example, and links to a free GPA calculator so you can check your own.

What an unweighted GPA is

An unweighted GPA is the simple version. Every class is scored on the same 4.0 scale, no matter how hard it is. An A is 4.0, a B is 3.0, a C is 2.0, and a D is 1.0. It does not matter if the A came from an easy class or a tough one. They both count as 4.0.

This makes an unweighted GPA easy to read. The highest you can get is a 4.0, which means straight A's. The downside is that it does not show how hard your classes were. A student taking all easy classes and a student taking all AP classes can end up with the same unweighted GPA.

What a weighted GPA is

A weighted GPA rewards harder classes with extra points. The grades work the same way, but tough classes get a boost before the average is worked out. Most schools add 0.5 for an honors class and 1.0 for an AP or IB class.

So an A in a regular class is still 4.0, but an A in an honors class becomes 4.5, and an A in an AP class becomes 5.0. Because of that boost, a weighted GPA can go above 4.0, often up to a 5.0 scale. This is why a student loaded with AP classes can have a weighted GPA higher than 4.0 even without perfect grades.

A side-by-side example

Say a student takes five classes and earns an A in every one. Two of them are AP, one is honors, and two are regular.

On the unweighted scale, every A is a 4.0. So the GPA is (4.0 + 4.0 + 4.0 + 4.0 + 4.0) ÷ 5 = 4.0.

On the weighted scale, the two AP A's are 5.0 each, the honors A is 4.5, and the two regular A's are 4.0 each. So the GPA is (5.0 + 5.0 + 4.5 + 4.0 + 4.0) ÷ 5 = 22.5 ÷ 5 = 4.5.

Same report card, same A's, but two different numbers. The unweighted GPA is 4.0 and the weighted GPA is 4.5. The weighted one is higher because it gives credit for the harder classes.

Which one do colleges use?

This is the question most students care about, and the answer is both. Colleges look at your GPA and at how hard your classes were. A weighted GPA hints at the rigor, but it is not the whole story.

Many colleges go a step further and recalculate your GPA their own way. Some strip out the extra points to put every applicant on the same unweighted scale. Others focus on your grades in core subjects like math, science, and English. So neither type gives you a real edge on its own.

What they want to see is that you challenged yourself and still did well. A slightly lower weighted GPA from hard classes can look better than a perfect unweighted GPA from easy ones.

Which one should you report?

Report whichever one the application asks for. Most forms tell you exactly which GPA they want, and some ask for both. If the form does not say, give the GPA your school prints on your transcript, since that is the official one.

It helps to know both your numbers before you apply. Work out your unweighted GPA on the plain 4.0 scale, and your weighted GPA with the honors and AP points added. That way you are ready no matter which one a school asks for, and you are never guessing at the last minute.

Skip the math with a calculator

Working out two GPAs by hand is easy to get wrong, especially with a mix of regular, honors, and AP classes. Our free GPA calculator adds it all up for you and gives you the number in one step.

If you only have percentages so far, the Percentage to GPA calculator turns each score into a GPA point first. Both are free and need no signup.

Conclusion

You do not have to pick a side. Take the classes that challenge you, keep your grades strong, and know both your numbers when it is time to apply. That way no application can catch you off guard. The free GPA calculator gives you each one in seconds.