Test Average Calculator
Type in your test scores, add rows as you need them, and get your average with its letter grade.
When a straight average is the right call
A plain mean treats every test the same, which is exactly how many teachers grade a test category: all unit tests count equally, and the category average goes into the gradebook. That's the case this tool handles. Enter each score as a percentage, and the average plus its letter update live as you type or remove rows.
If your syllabus says something like "tests 60%, quizzes 25%, homework 15%," you're looking at category weights, not equal tests. Average each category here first, then feed the three category averages into the weighted grade calculator with their weights.
Reading your average like a strategist
The average matters most right before the last test of a term. With four tests at an 86.6 average, a fifth test at 95 pulls you to 88.3, and a 70 drops you to 83.3. One more data point moves the needle less each time, which cuts both ways: a bad early test fades as you stack good ones, and a great early test won't carry you forever. To find the score you need on the next test to hit a target average, the final grade calculator does that math for any weight.
Frequently asked questions
- How do I calculate my test average?
- Add every score and divide by the number of tests. Five tests scoring 92, 85, 78, 88 and 90 add to 433, and 433 divided by 5 is 86.6%. This tool does that with as many tests as you add.
- What if my tests are worth different amounts?
- Then a straight average is the wrong tool, because a 50-point quiz and a 200-point exam shouldn't count equally. Use the weighted grade calculator and give each test its point value or percent weight.
- Does dropping the lowest test change much?
- Often more than students expect. One 55 among four scores in the high 80s drags the average down about 8 points, so if your teacher drops the lowest, delete that row here and watch the difference.
- Can I average letter grades?
- Convert them to their percentage midpoints first (a B+ is roughly 88), average those, then read the letter of the result. For a whole course across classes, the GPA calculator is the cleaner route.