Find the simple average of assignment, quiz, or exam percentages when every score has equal weight.
Every nonblank score counts equally.
A simple average gives every score the same importance. For example, 80%, 90%, and 100% average to 90%.
Use it when your assignments are truly equal-weighted. If a final exam counts more than a quiz, use the Weighted Grade Calculator instead.
Leave out work that has not been graded yet instead of entering a 0, unless your instructor counts missing work as zero. If your assignments have different point values, a simple average can mislead. Use the Points Grade Calculator, or read how to calculate your current grade.
Every score counts exactly once, regardless of what it was worth internally. This is different from both total-points grading, where a 200-point exam outweighs a 10-point quiz, and weighted grading, where your syllabus assigns the importance directly.
Four test scores: 88%, 92%, 79%, and 85%.
Add a fifth score of 90% and the average moves to (344+90) ÷ 5 = 86.8%. Each new score has equal pull, unlike a total-points class where a low-point assignment barely moves the number.
A simple average silently assumes every score is equally important. Two situations break that assumption.
Say a 10-point quiz scores 8/10 (80%) and a 100-point exam scores 92/100 (92%). A simple average gives (80+92) ÷ 2 = 86%. The correct total-points result is (8+92) ÷ (10+100) = 90.9%, since the exam is worth ten times more. Use the Points Grade Calculator instead when point values differ.
If homework, quizzes, and exams each count for a fixed percentage regardless of point totals, a simple average ignores that policy entirely. Use the Weighted Grade Calculator instead, and see our guide on how to calculate a weighted grade for the full formula.
A simple average is the right tool only when every score is genuinely meant to count the same, which is common in some elementary and rubric-based grading systems, or as a quick unweighted snapshot before applying a formal policy.
It is the sum of all included percentages divided by the number of included scores.
No. An average treats each score equally. A weighted grade applies the category weights specified by your course.
For a simple average, add the percentages and divide by how many there are. For a total-points course, add all points earned and all points possible separately, then divide once.
A simple grade average is the right tool when every score genuinely counts equally — no categories, no weights, just a straight mean across assignments. This happens more often in practice than you might think: some elementary and middle school classes grade purely by average, some standardized rubric-based systems treat every criterion identically, and teachers sometimes want a quick unweighted snapshot of a student's performance before applying a formal weighting scheme.
The key question is whether your syllabus assigns a fixed percentage to any category. If it does, use the Weighted Grade Calculator. If every assignment simply earns points that count toward a total, use the Grade Calculator. The average grade calculator on this page is for the specific case where you have a list of percentages and want their straight, equal-weight mean — useful for averaging multiple category averages before weighting them, or for a quick mid-term sanity check on your overall performance trend.
A zero score included in an average pulls it down more than a low positive score. A 0% averaged with five scores of 85% gives (0+85+85+85+85+85) ÷ 6 = 70.8%. The same five 85% scores without the zero give 85%. One missing assignment entered as zero can meaningfully shift the average — which is why some instructors drop the lowest score before averaging, and why this calculator lets you leave a row blank to exclude it from the calculation rather than forcing a zero entry.
A 75% is a C on the common US grading scale (73–76% = C). On a 4.0 GPA scale it corresponds to a 2.0. Some schools use a plus/minus system where 75% is a C+ (73–79% range) — check your syllabus for the exact cutoffs.
A 70% is a C− on the standard scale — passing, but below average. Most middle schools set passing at 60% or 65%, so 70% clears the passing threshold. Whether it's "good" depends on your school's expectations and the difficulty of the course.
On the common US scale: 63–66% is a D, 67–69% is a D+, and 70% or above is C−. So 63% is a D. Some schools draw the D/C boundary at 70% rather than the D+/C− boundary, making 63% an F in those systems — always check your institution's specific cutoffs.