Weighted average calculator
Enter each mark with its weight to get a weighted average, the total weight you have entered and how much of the module is still to come.
Your marks and weights
Add each piece of work with its mark and its weight. Weights can be percentages or credits.
across 3 pieces of work with a total weight of 60.
- Total weight entered
- 60
- Weight still to come
- 40%
- Points secured out of 100
- 37.6
To see what you need on the remaining 40%, use the exam mark calculator.
How it works
Each mark is multiplied by its weight, the results are added together, and the total is divided by the sum of the weights. Rows need both a mark and a weight to count; empty rows are ignored.
Worked example: Jane Doe
Jane Doe has three marks back in a module: an essay, a presentation and a lab report. Together they are worth 60% of the module, and an exam worth the other 40% is still to come. These are the figures the calculator starts with.
Her weighted average is 62.67%. A plain average of the three marks would be 65%, which flatters her: the presentation is her best mark but counts for the least, and the lab report is her lowest mark and counts for the most.
62.67% is her average on the work marked so far, not her module mark. With 40% still to come she has secured 37.6 points out of 100, and the exam decides the rest. The exam mark calculator takes her average and the 60% it covers and shows what she needs on the exam to reach a target.
Weights as credits
The same sum works one level up. To find a year average, enter each module mark with its credits instead of a percentage. A year is usually 120 credits, so totals over 100 are normal there. The guide to calculating your weighted average walks through both levels, and the degree calculator combines years with their year weights.
Questions about this calculator.
Something else? Get in touch and a real person replies.
What is the difference between a weighted average and a normal average?
A normal average treats every mark the same. A weighted average multiplies each mark by how much it counts, so an exam worth 60% moves the result far more than a quiz worth 10%. University module and year marks are weighted averages.
Can I use credits instead of percentages as weights?
Yes. To average modules within a year, enter each module mark with its credits (20, 40 and so on). The arithmetic is the same; only the "weight still to come" line assumes percentages.
My weights add up to less than 100. Is the result wrong?
No. The average covers only the work you have entered, which is usually what you want partway through a module. The calculator also shows how much weight is still to come and how many points out of 100 you have secured so far.
My weights add up to more than 100. What should I check?
If the weights are percentages for one module, they should total 100, so one is probably mistyped. If they are credits, a total above 100 is normal and the average is still correct.
Where do I find the weight of each assessment?
Your module handbook or the module page on your university learning platform normally lists each assessment and its percentage. Assessment briefs often repeat it.
Is anything saved or sent anywhere?
No. The calculation runs in your browser and nothing is sent to a server. Refreshing the page resets it to the example.
Track the real thing, not one sum at a time.
UniGrade keeps your modules, credits and year weights in one place and reruns this maths every time a mark comes in.