You got 9 out of 10 on the Monday quiz end then 18 out of 20 on Friday’s. Two different point values, two different percentages — 90 and 90 — but averaging those two numbers misses the point. The fair way to blend quizzes with different point values is to pool the points: 9 + 18 earned out of 10 + 20 possible = 27 out of 30 = 90%. That’s your true quiz average, the same number a pooled gradebook returns.
That’s the whole job of this tool. Add every quiz you’ve taken — points earned, points possible — and it pools all of it into one quiz average. One quiz at a time is the input; the pooled average across all of them is the output, because quizzes are rarely all worth the same points.
If you want to blend quizzes (and everything else) by the weight each carries in the course — rather than pooling raw points — the weighted grade calculator does that. This one answers a narrower, cleaner question: across every quiz so far, what’s my pooled average?
Enter every quiz you’ve taken with the points you earned and the points each was worth. The calculator pools all the points and returns your true quiz average — the fair way to blend quizzes with different point values.
The formula
Quiz average = total points earned ÷ total points possible × 100
Pooling matters because a simple average of percentages lies. Both quizzes above were 90%, so a simple average agrees with the pooled number. But slide the numbers and they diverge: 9/10 (90%) plus 18/25 (72%) pools to 27/35 = 77.1%, while the simple average of 90 and 72 is 81%. Which is right? The pooled one — a 25-point quiz weighs more than a 10-point quiz, and your gradebook knows it. The calculator treats every point equally, which is exactly how a points-based gradebook does.
Steps, in plain English
- Add a row for every quiz you’ve taken.
- Fill in the points you earned and the points it was worth (the name is optional — handy when you have “Quiz 1, Quiz 2” and the course has “Lab quiz” and “Vocab quiz”).
- Hit Calculate. The tool sums every earned point and every possible point, divides, and returns your pooled quiz average as a percentage.
Worked example
Say your course had four quizzes this term, each worth a different number of points:
- Quiz 1: 9 of 10
- Quiz 2: 18 of 20
- Quiz 3: 14 of 15
- Quiz 4: 22 of 25
Total earned: 9 + 18 + 14 + 22 = 63. Total possible: 10 + 20 + 15 + 25 = 70. Quiz average = 63 ÷ 70 × 100 = 90%. The four individual percentages — 90, 90, 93.3, 88 — average out to 90.3%, a hair different from the pooled 90. The pooled number is the one your teacher’s gradebook uses, because it respects that the 25-point quiz carried more weight than the 10-point one.
Read that last line twice: the calculator isn’t rounding down oddly. It’s telling you a 93.3% on a 15-point quiz and an 88% on a 25-point quiz don’t weigh equally — the bigger quiz gets more of the vote, and the blend lands at 90%. If every quiz is the same point value, the simple and pooled numbers agree and either method gives the same answer.
Frequently asked questions
Shouldn’t I just average the percentages?
You can, and for quizzes that are all worth the same points you’ll get the same number. The moment point values differ — a 10-point vocab quiz and a 25-point unit test — a plain average of percentages inflates the small quiz. Pooling points keeps every point equal, which is how a points gradebook actually computes your average. If your teacher grades quizzes on a scale out of 10 and every quiz is out of 10, use either; they agree.
What if a quiz was dropped?
This calculator takes what you give it. If your course drops your lowest quiz, take that quiz out of the list before you hit Calculate — the empty rows are ignored, so just delete (or leave blank) the dropped one. The pooled formula then reflects exactly what counts.
How is this different from the final grade or weighted grade calculators?
The final grade calculator asks “what do I need on the final exam to hit my target?” — a single score you still haven’t earned. The weighted grade calculator blends a mix of assignments, quizzes, and exams by the weight each carries. This one is simpler by design: every quiz you’ve already taken, pooled into one average. Peek at the other tools below and pick the question you’re actually asking.
Can I back out a GPA from this?
No — a quiz average is a percentage of points, not a course grade, and GPA is built from course grades plus credits. Once the term ends and you have course percentages, the GPA calculator or one of the country tools takes over.
Other tools
- Weighted Grade Calculator — blend a full course’s scores by weight
- Final Grade Calculator — the final score you need to hit your target
- Grade Percentage Calculator — any single score into a percentage
- Assignment Grade Calculator — what a single assignment is worth to your course grade
- Exam Average Calculator — the same pooling for midterms and finals, plus weights and drop-lowest
- Attendance Percentage Calculator — how many more classes you can miss before you drop under the minimum
- Pass/Fail Calculator — check whether a pass earns credits without GPA points
- Percentage to GPA Converter — that percentage into GPA points
- GPA Calculator — course grades into a term GPA
- Cumulative GPA Calculator — semesters into an overall GPA
Or browse everything on the student GPA tools page.