Grade Calculator
Enter assignment categories with weights and scores to see your current grade and what you need to earn an A, B, or C.
How to use Grade Calculator
The grade calculator computes your weighted course grade from multiple assessment categories — homework, quizzes, midterms, finals — each with its own score and weight. It also predicts what score you need on remaining work to achieve a target letter grade. Simply add categories, enter earned and total points plus percentage weight, and the tool instantly converts to a percentage and letter grade.
- Add each grading category (e.g. Homework, Midterm, Final).
- Enter your earned points, total points and weight (%) for each category.
- Click Calculate Grade.
- Review your weighted average, letter grade and predictions for remaining assignments.
Your data never leaves your device — 100% private processing.
Weighted vs unweighted grading
An unweighted average treats all assignments equally. A weighted average assigns different proportions to different assessment types — typically exams count more than homework. The formula is: grade = Σ(percentage_i × weight_i) / Σ(weight_i). If weights don't sum to 100%, the calculator normalises them automatically to produce a valid percentage.
Predicting what you need on remaining work
Once you know your current weighted grade and the weight of remaining assignments, you can solve for the minimum needed score: (target − current_weight × current_pct) / remaining_weight. This is useful before high-stakes assessments to know how much effort is required versus the marginal gain available. If remaining assignments total 20% of the grade, even a perfect score raises the final by at most 20 points.
Glossary
- Weighted grade
- A grade calculated by multiplying each component's score by its percentage weight.
- Letter grade
- An alphabetical grade (A–F) representing a range of percentage scores.
- Assessment weight
- The proportion of the final grade assigned to a specific category or assignment.
- Normalisation
- Adjusting weights so they sum to 100% when they do not already total correctly.
Related reading
Frequently Asked Questions
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Why use Grade Calculator?
- Clear explanations alongside every calculation
- Covers common academic tools: GPA, citations, grade conversion
- Works on any device without installation
- Designed for both students and educators
Common use cases
- Calculate your current GPA or predict your semester GPA
- Convert grades between grading systems
- Generate properly formatted APA or MLA citations
- Calculate reading time for an essay
- Convert between different grading scales for international students
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