How is a weighted grade calculated?

Multiply each assignment grade by its weight (as a decimal), sum those products, then divide by the total weight. For example, an 85% exam worth 50% and a 90% project worth 50% give (85×0.5 + 90×0.5) = 87.5%.

What score do I need on my final exam to get a target grade?

Use the formula: Needed = (Target×100 − Current×CurrentWeight) ÷ FinalWeight. The Final Grade Needed mode calculates this automatically and warns you if the required score exceeds 100%.

What happens if my assignment weights do not add up to 100%?

The calculator auto-normalizes the weights, so the weighted average is still meaningful for the grades you have entered. A green indicator confirms when weights total exactly 100%.

How does the letter grade and GPA conversion work?

The tool uses the standard US 4.0 scale: A (93–100%) = 4.0, B (83–86%) = 3.0, C (73–76%) = 2.0, D (63–66%) = 1.0, and F (below 60%) = 0.0, with +/− adjustments in between.

What is Grade Calculator?

The Grade Calculator is a free, browser-based tool that helps students compute their weighted course grade from assignments, quizzes, midterms, and finals, or determine the exact score they need on a final exam to reach a target grade. It converts percentages to letter grades (A+ through F) and the 4.0 GPA scale automatically. Weights are auto-normalized when they do not total 100%, and an achievability check warns if a target grade is mathematically impossible. Everything runs locally — your grades never leave your device.

Key Benefits

Weighted grading for assignments, quizzes, and exams
Final exam calculator with achievability check
Automatic letter grade and 4.0 GPA conversion
Auto-normalized weights for incomplete data
Private and free with no sign-up

Common Use Cases

•Tracking your standing before finals week
•Finding the minimum final exam score to keep or reach a grade
•Comparing scenarios with different assignment weights
•Converting percentage scores to letter grades and GPA
•Planning study effort based on which grade is achievable

How to Calculate Your Course Grade

Choose a mode: Select Weighted Grade to average assignments, or Final Grade Needed to find the score required on your final exam.

Enter your data: For weighted mode, add each assignment with its grade (%) and weight (%). For final mode, enter your current grade, target grade, and the final exam weight.

Read the result: Weighted mode shows your overall percentage, letter grade, and GPA. Final mode shows the exact score you need on the final, with a warning if it exceeds 100%.

Copy or reset: Copy the result to your clipboard, or click Reset to start over with fresh values.

Key Features

Weighted grade from assignments, quizzes, midterms, and finals

Final exam mode showing the exact score needed for a target grade

Achievability check that warns if a target is impossible

Automatic letter grade (A+ through F) and 4.0 GPA conversion

Auto-normalized weighting for incomplete data

Add unlimited assignments and copy results to clipboard

Grade Calculator

Free online grade calculator. Compute your weighted course grade from assignments and exams, find the score you need on your final to reach a target grade, and convert to letter grade and 4.0 GPA.

Calculator Mode

Assignment Name

Grade (%)

Weight (%)

About Grade Calculator

The Grade Calculator helps students compute their weighted course grade from assignments, quizzes, and exams, or determine the exact score needed on a final exam to reach a target grade. It also converts percentages to letter grades and GPA on the 4.0 scale. Everything runs in your browser — no data is uploaded.

Why Use This Grade Calculator?

•Weighted grading handles assignments, quizzes, midterms, and finals with custom weights.
•The final exam mode tells you exactly what score you need to achieve your target grade.
•Automatic conversion to letter grades (A+ through F) and the 4.0 GPA scale.
•Weights are auto-normalized if they don't add up to 100%, so partial data still works.
•100% client-side and private — your grades never leave your device.

Key Features

✓Add unlimited assignments with individual grades and weights
✓Final exam calculator with achievability check (warns if target is impossible)
✓Letter grade and 4.0 GPA conversion using the standard US scale
✓Auto-normalized weighting so incomplete weights still give a useful estimate
✓Copy results to clipboard and reset instantly

Loading tool...

What is Grade Calculator?

Key Benefits

Weighted grading for assignments, quizzes, and exams
Final exam calculator with achievability check
Automatic letter grade and 4.0 GPA conversion
Auto-normalized weights for incomplete data
Private and free with no sign-up

Common Use Cases

•Tracking your standing before finals week
•Finding the minimum final exam score to keep or reach a grade
•Comparing scenarios with different assignment weights
•Converting percentage scores to letter grades and GPA
•Planning study effort based on which grade is achievable

How to Calculate Your Course Grade

Choose a mode: Select Weighted Grade to average assignments, or Final Grade Needed to find the score required on your final exam.
Enter your data: For weighted mode, add each assignment with its grade (%) and weight (%). For final mode, enter your current grade, target grade, and the final exam weight.
Read the result: Weighted mode shows your overall percentage, letter grade, and GPA. Final mode shows the exact score you need on the final, with a warning if it exceeds 100%.
Copy or reset: Copy the result to your clipboard, or click Reset to start over with fresh values.

Key Features

Weighted grade from assignments, quizzes, midterms, and finals
Final exam mode showing the exact score needed for a target grade
Achievability check that warns if a target is impossible
Automatic letter grade (A+ through F) and 4.0 GPA conversion
Auto-normalized weighting for incomplete data
Add unlimited assignments and copy results to clipboard

Frequently Asked Questions

In-depth guide

Grade Calculator: Master Your Weighted Grades and Final Exam Strategy

Read the full guide →