This gradebook calculator was designed to help teachers with a quick and easy way to calculate grades without having to calculate by hand.

To create a grade chart, fill in the fields above and press Go!

*Questions* is the number of questions in your assignment. *Out of* is the final score, and will typically be 100 for a 100% assignment. *Step* allows you to change the distance between questions. For example, if you want to get scores in half question increments you would enter 0.5 in step.

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## Example

You’re grading an assignment with 37 questions on a scale of 0-100%. Enter 37 into the questions field, 100 in the out of, and step of 1. Click go and you’ll see that Bob who got 29 of 37 correct scored a 78%.

Another assignment also has 37 questions and again out of 100%, but this time students can get half credit. Bob’s neighbor Sue gets 33.5 total questions correct. By changing step from 1 to 0.5 you can see that Sue made a 91%.

## About this gradebook calculator

This particular page, the first on this site, started because I needed a way to quickly score Computer Science AP tests. For those that don’t teach AP, free response on the CS-APA exam are out of 9 points and scored in half point increments. And I wanted a way to quickly map those scorings out to 100%.

To use the AP scoring as an example; questions would be 9, out of would be 100, and step would be 0.5.

## Related Calculators

If you’re wanting something else, we also have a Linear Grade Distribution Calculator and a Square Root Curve Calculator.