Average grade calculator

Type or paste your grades, as percentages or letters. Every grade counts the same.

Separate grades with commas, spaces or new lines. A letter counts as the lowest percentage for that letter, so an average that includes letters is an estimate; your school may average letters by their grade points instead.

Example grades. Type yours over them, or

Some grades count more than others? Use the weighted class grade calculator instead.

Letter scale: Common US plus/minus scale

The plus/minus cutoffs Wikipedia lists for US colleges: A+ from 97%, A 93, A- 90, B+ 87, B 83, B- 80 and so on down to D- at 60. It is not universal, so use your syllabus's cutoffs when they differ. Source: Wikipedia, “Academic grading in the United States”.

Rounding and decimal places

Follow your syllabus. A displayed percentage can round up while the unrounded score stays below a cutoff.

Only changes how results are shown. Extra places appear when rounding would push a score over a letter cutoff.

A letter typed as a score counts as the lowest percentage for that letter on this scale. Use the original percentage when you have it.

Check a single cutoff with the grading scale calculator.

Grading scales checked . Sources are at the bottom of the page.

How do you average grades?

Add the grades together, then divide by how many there are. Each grade counts the same, so this fits tests, quizzes or classes that your teacher or school weights equally.

Average = sum of the grades ÷ number of grades

For example, 92, 85, 78 and 88 add up to 343. Divided by 4, that is an average of 85.75%, a B on the common A–F scale.

A letter you type counts as the lowest percentage for that letter on the scale you choose, so a B+ on a scale where B+ starts at 87% counts as 87. Use the real percentage when you have it: a letter can hide up to several points.

Average or weighted grade?

If your syllabus gives categories different weights, such as tests 50% and homework 20%, a plain average gives the wrong answer. Enter the categories and their weights in the class grade calculator instead.

If your assignments are worth different numbers of points, add the points first: 18 out of 20 and 40 out of 50 make 58 out of 70, which is 82.86%, not the 85% you get by averaging 90% and 80%. The Points setting in the class grade calculator does this for you.

To average course grades for a GPA, where classes can carry different credits, use the GPA calculator.