Grade Calculator

List your assignments with their scores and weights to get your current overall grade and letter grade. Switch to unweighted mode to add up points instead. The calculator warns you if the weights do not add up to 100%.

Free, no signupNo daily limitRuns in your browser - nothing you enter is uploadedUpdated 7 October 2026

Leave "Out of" blank to enter a score as a percentage.

Assignment or category	Score	Out of	Weight %	Percent	Remove

Weight entered0%

What do you need on the final? Use the Final Grade Calculator →

Letter grade scale (editable)

Start from

Grade	From %	Remove

Worked example: a syllabus with weights

A course syllabus says: homework 20%, quizzes 15%, midterm 25%, project 10%, final exam 30%. Before the final, a student has:

Category	Score	Weight	Score × weight
Homework	92%	20	1,840
Quizzes	85%	15	1,275
Midterm	78%	25	1,950
Project	95%	10	950
Total		70	6,015

current grade = 6,015 ÷ 70 = 85.93% → B (the final's 30% is not graded yet, so divide by 70, not 100)

To finish with 90%, the Final Grade Calculator gives (90 − 85.93 × 0.7) ÷ 0.3 = 99.5% needed on the final.

Weighted or unweighted?

Check your syllabus. If it lists categories with percentages ("exams 50%, homework 20%"), your grade is weighted: each category counts for its share no matter how many points it has. Enter one row per category, with your average in that category as the score.

If it simply adds up points ("1,000 points in the course"), it is unweighted: switch the mode and enter each assignment's points and maximum. A 100-point exam then counts ten times as much as a 10-point quiz automatically.

The weight bar shows how much of the course you have entered. Below 100% is normal mid-term: the result is your grade on the work graded so far. Above 100% almost always means a typo.

What this calculator does not do

It does not drop the lowest score or apply extra-credit rules automatically - adjust the rows the way your syllabus says.
Letter grades use the scale you set; there is no single official scale.
Rounding policies differ: the result shows two decimals and is not rounded up to the next letter.

Frequently asked questions

How is a weighted grade calculated?

Each item's percentage is multiplied by its weight, the results are added up, and the sum is divided by the total weight. 90% on work worth 40% and 80% on work worth 60% gives (90 × 40 + 80 × 60) / 100 = 84%.

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

The calculator divides by the weights you have entered, which gives your current grade on the work graded so far. It also warns you, because weights that should total 100% but do not usually mean an item is missing or mistyped.

What is the difference between weighted and unweighted grades?

Weighted mode lets categories count for different shares of the grade, such as exams 50% and homework 20%. Unweighted mode simply adds all points earned and divides by all points possible, so a 100-point exam counts ten times as much as a 10-point quiz.

Can I enter scores as percentages?

Yes. Leave "Out of" blank and the score is read as a percentage. Fill it in to enter points, such as 18 out of 20.

Which letter grade scale is used?

The default is the common A 90, B 80, C 70, D 60 scale. You can switch to a plus/minus scale or edit every cut-off to match your syllabus.

How do I work out what I need on the final?

Use the Final Grade Calculator: enter the current grade from this page, the grade you want and how much the final exam is worth.

Related free tools

Final Grade CalculatorThe score you need on the final to reach your target grade, plus a what-if table.

GPA CalculatorSemester GPA and new CGPA from credits and grades, on 4.0, 5.0 or your own scale.

Percentage CalculatorX% of Y, percent of a total, increase/decrease, add or remove a percent, and marks.

Easy GraderA printable chart of percentage and letter grade for every score on a test.

Step-by-step guide: How to calculate a weighted grade →

Built and checked by Taimur Hassan Siddiqui, who has more than ten years in computer-science education. The formulas on this page are covered by an automated test suite, and the worked example on this page is one of its cases. Last updated 7 October 2026.