Grade calculator

A weighted class grade is the sum of (score × category weight) across categories. If weights are percents that total 100, convert each weight to a decimal first (e.g., 20% → 0.20).

Running average updates as you enter assessments. Empty or zero-weight rows should not dilute the total—keep category weights aligned with the syllabus.

Grade = Σ(scoreᵢ × wᵢ)  where Σwᵢ = 1

Do my grades leave this browser?

No. Assessments and weights are stored with local browser storage so you can return between study sessions. Clear site data if you are on a shared computer.

What if my syllabus weights do not total 100%?

You will still see a running average, but the number is only trustworthy once weights match the rubric. Fix categories to add to 100% (or the total your instructor publishes).

Can I track more than one class?

Duplicate the tab or use the Add class control (if visible in your layout) so each bookmark lines up with a different syllabus.

How do I calculate a weighted grade from percentages?

Multiply each category score by its weight (as a decimal), then add the products. Example: 90×0.5 + 70×0.3 + 100×0.2 = 86.

Should I use this or the final grade calculator?

Use this tool to track the running course average from syllabus categories. Use the final grade calculator when you already know current percent C and need the score F on a remaining exam of weight w.

What if my teacher drops the lowest quiz?

Omit dropped assessments from the rows, or leave them at 0 weight, so they do not pull the average down.

Enter each assessment, match syllabus weights, and monitor your running average. Data persists locally in your browser.

• Enter each assessment and match syllabus category weights row by row.
• Data persists locally in your browser for private planning.

• Back-solve the score you need on the final exam.
• Explanation of weighted averages.
• See How to Calculate Grades for the long-form weighted-average explanation.

1. List every graded component from the syllabus as its own row.
2. Enter scores as percents (or letter midpoints) and keep categories consistent.
3. Keep category weights aligned with the rubric—usually they should sum to 100%.
4. Duplicate the tab if you want one bookmark per class.

Same scores; only how you weight categories changes the course percent.