Percentage Grading System

Written by Auhona Islam

Reviewed by Md. Ashakul Islam Sowad

Last Updated: 19 September 2024

A percentage grading system is one of the most common ways to measure and evaluate student performance in schools. In a percentage grading system, student performance is measured as the percentage of correct answers, assignments completed, or overall performance that is equal to or greater than the total possible score.

You can use the GPA Calculator , Grade Calculator ,  and School Grade Calculator to calculate your grades or GPA based on the percentage grading system.

How to Calculate Grades by Percentage?

To calculate grades by percentage, you can utilize the Online Grade Calculator . To calculate the percentage of a grade, you need to know two values: the number of points earned by the student and the total possible points for the assignment, exam, or assessment. Here's the formula to calculate the percentage of a grade:

Percentage = (Points Earned / Total Possible Points) × 100

For example, if a student earns 17 out of 20 points on a quiz, their percentage grade is (17/20) * 100 = 85% .

What are the Pros of the percentage Grading System?

Pros of the percentage grading system:

Precision: Provides precise evaluation of student performance with specific numerical values.

Clarity: Easily understandable for students, parents, and educators.

Flexibility: Allows for customization of grading criteria and weightage of assignments.

Consistency: Offers consistency in grading across different courses and institutions.

Objective: Minimizes subjectivity by focusing on quantitative assessment of student work.

What are the Cons of the Percentage  Grading System?

Cons of the percentage grading system:

Lack of Standardization: Interpretation of percentages may vary between instructors and institutions.

Limited Feedback: Percentages may not provide detailed feedback on areas for improvement.

Pressure for High Scores: Students may feel pressured to achieve high percentage scores, leading to stress and competition.

Focus on Quantitative Rather Than Qualitative Assessment: Emphasizes numeric values over qualitative aspects of learning.

Difficulty in Comparisons: Comparing grades across different courses or institutions can be challenging due to varying grading criteria and scales.

In conclusion, the percentage or numerical grading scale serves as a compass for both educators and students, navigating the academic landscape with clarity and precision. By comprehending its structure and the criteria underpinning each percentage range students can gain invaluable insight into their academic journey, fostering a culture of continuous improvement and achievement.

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Frequently Asked Questions (FAQs)

What is a numerical grading scale.

A numerical grading scale is a system where student performance is assessed using numbers rather than letters or other symbols. Typically, grades are assigned based on a scale, such as 0 to 100, with higher numbers representing better performance. This scale allows for precise evaluation of student achievement and can be converted to letter grades or percentages for reporting purposes.

What is an A+ in percentage?

An A+ grade generally falls within the percentage range of 97-100%. It represents exceptional performance and mastery of the course material.

How do I calculate a final grade with percentages?

Calculating a final grade with percentages involves multiplying each grade by its weight (if applicable), summing these products, and then dividing by the total weight to determine the overall grade. For example, if you have grades of 85% and 90% with weights of 30% and 70% respectively, you would calculate (0.30 * 85) + (0.70 * 90) = Final Grade.

Is a 90 an A or B?

A 90 is commonly considered an A grade in many grading systems. However, grading scales can vary between institutions and courses, so it's important to refer to the specific grading criteria provided by your instructor or institution for clarification.

Grade Calculator

Grade Calculator

Grade Calculator

  • Grade calculator
  • Final grade calculator
  • GPA calculator

Understanding how to calculate your current grade in a course is advantageous for planning what you need to achieve your goal’s overall course grade. The following Grade Calculator serves as an easy-to-use helpful tool to calculate your current grade of the course before the final examination.  

What is a Grade Calculator?  

A Grade Calculator is a free online tool designed to help students and educators determine academic grades based on entered scores and weights. It simplifies the process of calculating current grades, helping users navigate their academic journeys.   

The Grade Calculator helps students estimate the impact of each assignment on their course’s weighted average grade. That means the overall grade of a course depends on 2 main factors: the grade of each assignment (g) and the corresponding weight of each assignment (w).  

A Grade calculator helps you find your current average score in a course based on completed assignments up to the current point in the semester. The Final grade calculator then calculates the score you need to achieve in your remaining assignment (the final exam) to reach your desired grade of the course

How to Use a Grade Calculator?  

Using a Grade Calculator is a straightforward process that involves entering relevant information about your academic performance. To utilize this calculator, input your current percentage for each assignment, test, or exam, along with its respective weight towards your final grade. For each additional assignment, test, or exam, click on "Add Assignment." Your results will automatically update as you input each component , allowing you to track your progress throughout the course.  

Here's a step-by-step guide on how to use a Grade Calculator:  

Step 1: Input the Assignments.  

Users manually enter the name of each assignment, for example: Assignment 1, 2, 3, Homework, Final Exam, etc.  

Step 2: Input the grade.  

Enter their scores for each assignment, test, project, or other exam throughout the course. Each entry typically includes the earned percentage (10%, 30%, 50%, etc.), letter (A+, B-, D, etc.), or points (20, 50, 175, etc.).  

Step 3: Input the weight.  

Enter the weight of that assignment into the overall course grade. The weight indicates that different assignments may have varying impacts on the final grade. A final exam might have a higher weight than a small task.  

Step 4: Calculate the grade automatically.  

The tool then automatically calculates the cumulative grade based on the entered grades and weights. Users can see their current grade as well as how each assignment contributes to the overall grade.  

Step 5: Adjust as needed.  

Users can adjust grades or weights to see how changes impact the overall course performance. This dynamic feature allows for real-time exploration of different scenarios, helping users make informed decisions about their academic strategy and goal achievement.  

Weighted Grade Calculation: Formula and Example  

The calculation of a weighted grade involves summing the products of the weights (w) and the corresponding grades (g).  

Weighted Grade = (w₁ × g₁ + w₂ × g₂ + w₃ × g₃ + …) / (g₁ + g₂ + g₃ +...)  

Example 1: Grade type: Percentage  

Determine the weighted grade of a course, in which:  

  • Assignment with a grade (percentage) of 80 and a weight of 30.  
  • Homework with a grade (percentage) of 90 and a weight of 20.  
  • Final exam with a grade (percentage) of 72 and a weight of 50.  

The weighted average grade is determined by the formula:  

Weighted Grade = (w₁ × g₁ + w₂ × g₂ + w₃ × g₃ + …) / (w₁ + w₂ + w₃+...)  

Substituting the values:  

Weighted Grade = (30 × 80 + 20 × 90 + 50 × 72) / (30 + 20 + 50) = 78  

Example 2: Grade type: Letter  

  • Assignment 1 with a grade (letter) of A+ and a weight of 20.  
  • Assignment 2 with a grade (letter) of B and a weight of 20.  
  • Final exam with a grade (letter) of C- and a weight of 60.  

The weighted average grade of the course is calculated by the formula:

Weighted Grade = (w₁ × g₁ + w₂ × g₂ + w₃ × g₃ + …) / (w₁ + w₂ + w₃ +...)  

Weighted Grade = (20 × 4.33 + 20 × 3.00 + 60 × 1.67) / (20 + 20 + 60) = 2.64   

The table below shows how your letter grades convert to a numeric grade (4.0 scale) and percentage grade (% scale):  

Example 3: Grade type: Point  

Consider the following case:  

  • For Assignment 1, the grade is 60 out of 80.  
  • For Assignment 2, the grade is 30 out of 50.  
  • For Homework, the grade is 120 out of 120.  
  • For the Final exam, the grade is 60 out of 100.  

The formula to calculate the weighted average grade is:  

Weighted Grade = sum of real grade / sum of maximum grade  

Weighted Grade = (60 + 30 + 120 + 60) / (80 + 50 + 120 + 100) = 77.14  

Important Role of the Grade Calculator in Academic Path  

The Grade Calculator functions as a flexible tool that aids both educators and students, fostering efficiency and transparency. Knowing the average grade is essential for strategic decision-making in scenarios and setting achievable academic goals.  

Scenario Planning:  

Some Grade Calculators allow users to experiment with different scenarios. For instance, students can input hypothetical scores for future assignments or exams to see how they would impact their final grade. This helps in understanding how adjustments to upcoming assessments may impact the overall class performance.  

Teachers can use a Grade Calculator to streamline the grading process. By inputting scores and weights, the tool can quickly calculate overall grades, saving time and ensuring accuracy.  

Goal Setting:    

Users can set grade goals and determine the scores needed on upcoming assessments to achieve those goals. This application is particularly helpful for students who aim for a specific final course grade. Goal-setting helps students set realistic academic goals and understand the scores needed to achieve them. Knowing their current grade and having the ability to plan for future assessments can reduce stress for students.  

The Grade calculator provides the average score for a specific course. Students can use this result to calculate their GPA, which represents the average score across all their courses. In essence, the output from the Grade calculator acts as the input for the GPA calculator.

3 Outstanding Features of Grade Calculator  

Using our Grade Calculator is simple and straightforward, even if you are a first-time user. The Grade Calculator is crafted with the user in mind, offering many noticeable benefits:  

Customizable by Adding or Subtracting Assignments  

Recognizing the diversity of grading systems in different educational institutions, the tool offers customization options. Users have the flexibility to tailor the tool to their specific needs. For example, users can add as many assignments as they want, and adjust the weight to align with their school's unique grading system.  

Compatible with Multiple Devices  

The tool is accessible across various platforms to accommodate different user preferences and device types. It is available as both a web application and a mobile app. Users can access it conveniently from desktops, laptops, tablets, and smartphones.  

Easy-to-Understand and Easy-to-Use Interface  

The user interface is designed to be intuitive and user-friendly, prioritizing ease of use. Input fields are labeled logically, ensuring users can easily understand and input the required information. The overall design focuses on simplicity enhancing the overall user experience.  

To sum up, the Grade Calculator is considered a trusted tool for students and educators alike on their academic journeys. Its friendly interface and accurate calculations make it a valuable companion, helping everyone calculate the grade of the course effectively.  

Grade Calculator - FAQs  

What grade do i need to pass a college class  .

The grade needed to pass a college class varies depending on the grading system used by the schools, colleges, and academic institutions . In many cases, a passing grade is a D or higher, which is usually equivalent to a numerical grade of 60% or more. However, some programs or courses may require a higher minimum passing grade, so it's important to check your college's policies.  

How do you calculate the percentage grade?  

To calculate a percentage grade, you divide the points earned by the total points possible and then multiply by 100. For example, if you earned 85 points out of a possible 100, your percentage grade would be: (85/100) * 100 = 85%.  

How much will a 0 affect my grade?  

A zero can significantly impact your grade, especially if it's for a major assignment or test. Since a zero has a large weight in the calculation of your average score, it can pull down your overall grade significantly.  

How much will a 71 affect my grade?  

The impact of a 71 on your grade depends on several factors, such as the weight of the assignment or test in the overall course grade and the grading scale used by your instructor. If the 71 is for a major assignment or test and carries a significant weight in the course, it could have a noticeable effect on your overall grade, potentially lowering it. However, if the assignment is one of many and has a lower weight in the course, its impact may be less significant.

Marks Percentage Calculator

Use this test mark to percentage calculator to easily calculate the percentage given one or more test grades (marks) and the maximum possible number of marks. If you enter marks from multiple test exams or test tasks, they will be summed before the percentage calculation. Suitable for all school and college level exams.

Related calculators

  • How to calculate percentage of marks?
  • Marks to percentage formula
  • Test marks to percentage - practical examples
  • How to calculate the average percentage score for an entire class

    How to calculate percentage of marks?

To find the percentage of marks only basic arithmetics with proportions is required. If it is a single mark, first divide the mark by the maximum possible mark and then multiply by 100 to get the percentage. If there are multiple marks involved, first find their sum total, then proceed as if it is a single mark and divide by the maximum total marks out of which these marks were obtained. Multiply by one hundred at the end to convert to percent. You can do this by hand, following the formulae below, or by using our mark percentage calculator above.

For example, if an exam has a single section and the maximum score is 25, for a student who scored 18 enter 18 in the first input field and 25 in the second, then click "Calculate". If an exam has three sections, or a student is scored on three separate subjects, enter the three obtained scores separated by spaces or commas like so "80 60 90" and then enter the maximum score they could have obtained, e.g. 300 if the score ceiling on each test is 100.

    Marks to percentage formula

In the simplest case we have just a single exam and therefore a single test grade to work with. In this case the calculation to convert marks into percentage is straightforward by following this formula:

Mark Percentage = Scored Mark / Test Maximum x 100

"Test maximum" corresponds to the "Out of ... marks" input field in our test grade percentage calculator.

If an exam is scored in separate test sections, or if you are calculating the percentage from several separate exams, then the following formula is applicable:

Mark Percentage = Sum of Scored Marks / Test(s) Maximum x 100

The sum is calculated in the usual way using simple algebra. Our percentage calculator of marks handles that for you automatically.

    Test marks to percentage - practical examples

First, a simple example with a single test. Let's say a student scored 85 on an exam with a maximum mark of 100. Plugging the numbers into the above formula, we get:

85 / 100 = 0.85 x 100 = 85% so the test percentage is 85%.

Now for a more complicated example of converting a score to percentage where there are two tests or two test sections that are being scored. If a student scored 92 points on the first exam and 88 points on the second one, and the total marks they can get on both tests is 200, what is the percentage that the student scored? To calculate this, we first sum up the two marks and then apply the equation as usual:

(92 + 88) / 200 x 100 = 180 / 200 x 100 = 0.90 x 100 = 90% so the overall percentage mark is 90%.

The table below shows the test grades on a given examination and their corresponding percentages assuming a maximum mark of 200.

All test percentages in the table are computed using this exam percentage calculator.

    How to calculate the average percentage score for an entire class

The above method can be expanded to any number of marks, including calculations for the percentage scored by a whole class of students on a given test material, or even across class subjects which can be useful to educators as a measure of success. For example, with 20 students in a class, enter the 20 marks obtained in the "Scored" calculator field (separate by spaces or commas) and then the maximum possible score (e.g. 20x40 = 800 if each student can get a maximum of 40 points) in the "Out of" field.

Cite this calculator & page

If you'd like to cite this online calculator resource and information as provided on the page, you can use the following citation: Georgiev G.Z., "Marks Percentage Calculator" , [online] Available at: https://www.gigacalculator.com/calculators/marks-percentage-calculator.php URL [Accessed Date: 13 Nov, 2024].

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