Average Marks Calculator
Education & StudentAverage, median and spread across a set of marks.
Runs entirely in your browser — nothing is uploaded
Features
- Mean, median, mode and range together.
- Standard deviation, to see how spread the marks are.
- Paste a column straight from a spreadsheet.
- Runs entirely in your browser — nothing you enter is uploaded.
How to use the Average Marks Calculator
- 1Paste or type the marks, separated however you like.
- 2Read the mean and the median.
- 3Compare them — a gap means outliers are pulling the average.
Frequently asked questions
Should I use the mean or the median?
The mean when the marks are fairly evenly spread. The median when a few very high or very low scores would distort it — it is the middle value and ignores how extreme the extremes are.
What does standard deviation tell me about a class?
How tightly the marks cluster. A low figure means most students scored near the average; a high one means a wide spread, which usually signals a paper that separated those who had prepared from those who had not.
Are blank entries counted as zero?
No — blanks and anything that is not a number are ignored entirely. Counting an absent student as zero would drag the class average down misleadingly, so if you want that, enter the zeros explicitly.