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Grade calculator: weighted average and final exam grade needed

Enter your grades and their weights to get your weighted average, then find out exactly what you need on the final to reach your target grade or pass the course.

Everything you type stays in your browser. Nothing is sent to our servers.

Enter at least one grade and its weight.

How to use it

  1. 1

    Choose your grading scale

    Out of 20, out of 100, out of 10 or percentages. Each assessment can also have its own maximum.

  2. 2

    Add your grades and weights

    Type each grade with its weight in the course. The weighted average updates as you type.

  3. 3

    Find the grade you need

    Switch to the final grade tab, enter your target or the pass mark, and see the exact score you need on the final exam.

How to calculate a weighted average

A weighted average gives each grade an importance proportional to its weight. Multiply each grade by its weight, add the results, then divide by the sum of the weights.

Example: 14/20 on a project worth 30% and 9/20 on an exam worth 70% gives (14 × 30 + 9 × 70) ÷ 100 = 10.5/20. A plain average would give 11.5/20, which overstates your real standing.

How to calculate the grade you need on your final exam

Use this formula: needed = (target − current grade × weight already graded) ÷ weight of the final. Weights are written as decimals, so 40% becomes 0.4.

If the result is above the maximum grade, the target is out of reach. If it is zero or below, you have already secured it. The table under the result shows the score you need for several targets at once.

Tips to raise your average before the final

Start with the assessments that carry the most weight: one point on an exam worth 60% is worth three times one point on a quiz worth 20%.

Plan your revision backwards from the exam date with the free exam study planner, and use active recall with flashcards rather than rereading your notes.

Questions, answered

How do I calculate my weighted grade average?

Multiply each grade by its weight, add the results, and divide by the sum of the weights. The calculator does this automatically and also handles assessments graded on different scales.

What do I need on my final to pass?

Open the 'Grade needed on final' tab, enter your current grade and its weight, set the target to the pass mark (10/20 or 50% by default) and the calculator shows the minimum score you need on the final exam.

What if my weights don't add up to 100%?

The calculator still works: it computes the average over the weights you entered and tells you the total, so you can see how much of the course is still ungraded.

Can I use it for GPA or letter grades?

This calculator works with numeric grades (out of 20, 100, 10 or percentages). Convert letter grades to their numeric value first, for example the percentage your school uses for each letter.

Are my grades saved?

Your grades are kept only in your browser on this device, so they are still there when you come back. They are never sent to a server.

Keep every grade in one place

Noto Studio tracks your grades by course and term next to your notes, exams and flashcards. Free plan, no credit card.

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