Grade Calculator | Letter, Percentage, Points (2024)

The grade calculator can help you estimate your overall grade based on your component marks. The tool deals with three types of grading systems prevalent in the US – it's a letter grade calculator, a grade percentage calculator, and a point grade calculator.

In the text, you can learn how to use the grading calculator and how to determine an overall grade without it. Find out how to calculate weighted grades, how to calculate grade percentages, and more.

You can use the tool as an unweighted or weighted grade calculator, and set the particular grading scale your teachers use.

🔎 Check our weighted average calculator if you want to learn more about the weighted average.

Prefer watching rather than reading? We made a video for you! Check it out below:

How this grading calculator works

We divided the tool into three parts – a letter grade calculator, a grade percentage calculator, and a point grade calculator. You can enter up to 20 marks (new fields will appear once you fill in the last row displayed).

The weights are, by default, set to 1. Leave them as they are if you want to calculate an unweighted average. If your grades have weights, set them accordingly. If the weights are percentages, enter them in decimal form (1 = 100%, 0.5 = 50%, 0.2 = 20%, etc.).

Schools and universities in the United States use different grading scales. You can read more about them using Omni's GPA calculator. You can specify the thresholds used by your teachers in the Advanced mode (click the button below the grading calculator). By default, the calculator uses this common grading scale:

Letter grade


GPA (grade point average)






































Below 60


Some schools don't use "+/-". In this case, the most popular grading scale looks like this:

Letter grade















E / F



For a quick estimation of the final grade, our final grade calculator should be a valuable tool.

Letter grade calculator

The letter grading system is common in the US. Let's see how to use the letter grade calculator:

  1. If your school uses a different grading scale than the one described in the first paragraph, go to the Advanced mode and set the grading scale.

  2. Set the Grades type to "Letters."

  3. In the first field, choose the grade you got from the first assignment, test, exam, or subject.

  4. If your grades have weights or credits, enter the weight of the first grade. You can enter a natural number, a decimal, or change the unit to a percentage. If the weight is a percentage, you can input its decimal form (e.g., 0.5 for 50%).

    If you're calculating the unweighted average (all grades are equally important), ignore the letter grade calculator's weight fields.

  5. Proceed this way with all your marks. New rows will appear as you fill in the last field.

  6. Your overall grade will appear at the bottom of the letter grade calculator.

If you want to clear all the fields and make the calculator grade again, click the circular arrow icon to reload it.

Grade percentage calculator

To use the grade percentage calculator:

  1. Set the Grades type to "Percentage".

  2. Type in the percentage result of your first test, task, or subject. Underneath, enter the weight or credits given for the grade. Ignore this field if your teacher doesn't use weights.

  3. Continue to enter the percentage grades of all your assignments, tests, etc., along with their weights. New rows will appear once you fill the last field.

  4. The grade percentage calculator will display the average of your marks. It'll also tell you the equivalent letter grade. The calculator is based on the default grading scale, so change it in Advanced mode if you need to.

Grade calculator points

To use the point grade calculator:

  1. Set the Grades type to "Points".

  2. Enter how many points you got from the first task, assignment, or subject. Then type in the maximum number of points you could get for the task.

  3. Set the weights (credits) if applicable.

  4. Enter the rest point grades, along with both maximum points and weights.

  5. The point grade calculator will show you how many points you achieved in total and what was the maximum you could have got (your score/max, while ignoring the weights). You'll also see the equivalent percentage and letter.

How to calculate weighted grades?

The formula that lets you calculate weighted grades is:

(g₁ × w₁ + g₂ × w₂ + … + gn × wn) / (w₁ + w₂ + … + wn),


  • "g" stands for "grade"; and
  • "w" stands for "weight".

This is what the weighted grade calculator uses.

The formula answers the question "how to calculate weighted grades." We could translate it into some instructions:

  1. Multiply all your grades by their weights.
  2. Sum the numbers from step 1.
  3. Sum the weights.
  4. Divide the sum from step 2 by the sum from step 3.

The weights tell you how important the grade is. Imagine you got a grade B with a weight of 2 and an A with a weight of 5. It's as if you got two Bs and five As. Let's find the overall grade from these marks.

First, we need to convert letters to numbers. "A" stands for 4, and "B" equals 3. Now that we know this, let's use the formula described above and calculate the weighted average of all grades:

(3 × 2 + 4 × 5)/(2 + 5) = 26/7 ≈ 3.71

We translate the result back to the letter: 3.71 is an "A-".

How to calculate the grade percentage?

In the case of percentage grades, we use the same formula as for letter grades.

Example: you're finishing a year and want to calculate your overall grade for a class. You got 67% for an essay worth 15% of the grade, 75% for a midterm exam worth 35%, and 72% for a final worth 50%.

Let's apply the formula. Remember to convert the weights from percentages to decimals. If you need help, our decimal to percent converter may come in handy. The weights add up to 1 (100%), so you can skip the denominator part of the formula.

67% × 0.15 + 75% × 0.35 + 72% × 0.5 = 10.05% + 26.25% + 36% = 72.3% ≈ 72%

Your final grade is 72%, which we may denote as C-.

How to calculate my grade points?

In the case of point grades, we can convert them to percentages and assign a letter equivalent if needed. We can use the following formula for point grades:

p1/p1,max × w₁ + p2/p2,max × w2 + … + pn/pn,max × wn) / (w1 + w2 + … + wn),


  • p – Points acquired on a test;
  • pmax – Maximum number of points on a test; and
  • w – Weight of a grade.

To estimate your test grade, you can also check our test grade calculator.

Example: I got 70/100 points on the first test, 46/100 on the second one, and 177/200 on the third one. The first test constitutes 30% of my overall grade, and so does the second one. The third one is worth 40%. Calculate my grade.

  1. Let's substitute our values into the formula:

    grade = (70/100 × 30% + 46/100 × 30% + 177/200 × 40%) / (30% + 30% + 40%)

    Usually, when we express weights in percentages, they add up to 100% (or just one in decimal notation). In these cases, you can skip the denominator part of the formula (since dividing by one doesn't change the result).

  2. We convert the percentages to decimals:

    grade = (70/100 × 0.3 + 46/100 × 0.3 + 177/200 × 0.4) / (0.3 + 0.3 + 0.4).

  3. We convert the points (grades) to percentages, and the weights add up to 1:

    grade = (70% × 0.3 + 46% × 0.3 + 88.5% × 0.4) / 1.

  4. We add up the numbers and round the result:

    grade = 21% + 13.8% + 35.4% = 70.2% ≈ 70%.

  5. We assign a letter:

    70% is a C-.


What's a 75 in letter grade?

A 75% in letter grade is equivalent to a C, which is considered a passing grade. Generally, a C is somewhere between 70 and 79 percent.

Some schools use letters with "+/-", meaning that a C- is 70-72 percent, a C is 73-76 percent, and a C+ is between 77 to 79 percent.

How do I calculate my final grade in percentage?

To calculate your final grade in percentage:

  1. Add up the grades you've received on all the assignments, tests, and projects.

  2. Divide this by the total points possible.

  3. Multiply your result by 100 to express it as a percentage.

For instance, suppose your scores are 15/20, 18/20, and 12/20:

  1. The total points you got are:
    15 + 18 + 12 = 45

  2. When dividing this by the total possible points of your course (60), you get:
    45 / 60 = 0.75

  3. In percentage terms, your final grade is:
    0.75 × 100 = 75%.

Grade Calculator | Letter, Percentage, Points (2024)


Grade Calculator | Letter, Percentage, Points? ›

Divide your total points by the total points possible

If you earned 330 points in this class, you'd divide that by 400 for a quotient of 0.825, which corresponds to a percentage grade of 82.5%, or a low B.For percentages, divide the sum by the number of entries.

How to calculate grade percentage with points? ›

Divide your total points by the total points possible

If you earned 330 points in this class, you'd divide that by 400 for a quotient of 0.825, which corresponds to a percentage grade of 82.5%, or a low B.For percentages, divide the sum by the number of entries.

How many points is 5% of a grade? ›

Your oral exam is 5% of your total grade, so think of it as 5 points. You earn an 80 on your oral exam, so you multiply . 05 (5%) and 80, which gives you 4 points.

How do you calculate letter grade percentage? ›

When the grades in a course are calculated using points, you will add together your total earned points and divide that number by the total points possible to find the percentage-of-100 number equivalent of your letter grade.

What is the formula for grading points? ›

Grade Point Averages (GPA) are calculated by dividing the total number of Grade Points by the number of Credit Hours enrolled. To determine the grade points earned per class, first multiply the points by the number of credit hours.

How do you calculate total grade points? ›

Grade (Numerical Equivalent) x Credits = Grade Points

Add up your grade points for each class. Then divide the sum by the total number of credits earned in those courses.

How many points is 20% of your grade? ›

Calculating the Grade

For example, if you got a score of 90 percent on the test and the test is worth 20 percent of your overall grade, you would multiply 90 by 0.2 for a value of 18 points out of the possible 20 points.

How to calculate grade with percentage weighted? ›

First work out the percentage mark of each module by dividing the number of marks obtained by the maximum number of marks in that module. Next, multiply the percentage mark by the weight of each module. Finally to find your mark, sum the right hand column as follows: 0.15+0.15+0.4=0.7.

What is the difference between points and percentage grades? ›

Percentage grades are based on 100%, and the gradebook displays these grades as numbers or letters, for example 90 or A–. Point grades can range from 0.00 to 1000, and the gradebook displays the number of points the student earned out of the maximum number of points possible.

How to calculate percentage? ›

How do you calculate a percentage? To calculate a percentage, you typically divide the part (the smaller value) by the whole (the larger value), and then multiply the result by 100. This gives you the percentage value as a number between 0 and 100.

Is 60% a grade 5? ›

According to this illustration, grade 4 requires 56 - 66 per cent, grade 5 requires 67 - 77 per cent and grade 6 requires 78 - 88 per cent.

Is a 93 an A? ›

What are letter grades and how do they convert into percentages? Common examples of grade conversion are: A+ (97–100), A (93–96), A- (90–92), B+ (87–89), B (83–86), B- (80–82), C+ (77–79), C (73–76), C- (70–72), D+ (67–69), D (65–66), D- (below 65).

How to calculate letter grade average? ›

How to Calculate Your GPA
  1. Convert each grade into its numeric equivalent using the chart below. A+ = 4.33. A. = 4.00. A- = 3.67. B+ = 3.33. B. = 3.00. B- = ...
  2. Multiply each class grade by the number of credits earned. For example: 3.0 (grade) x 4.0 (credits) = 12.
  3. Divide this number by total credits attempted. This is your GPA.

How do you calculate grade average with letter grades? ›

To calculate the GPA:
  1. Multiply the grade (A=5, B=4...) by the number of ECTS credits.
  2. Multiple the number of courses with the same grade and add them together-> in this example (5x6x10)+(4x6x5)+(3x6x15)=690.
  3. Divide the total by the total ECTS credits to find the grade per ECTS, the Grade Point Average -> 690/180=3,83.
Oct 30, 2023

How do you calculate number grade to letter grade? ›

For each unit of credit the following grade points are earned:
  1. A+ = 4.
  2. A = 4.
  3. A- = 3.7.
  4. B+ = 3.3.
  5. B = 3.
  6. B- = 2.7.
  7. C+ = 2.3.
  8. C = 2.

What grade point is a 70%? ›

Convert Your GPA to a 4.0 Scale
Percent Grade4.0 Scale
8 more rows

How many points is 20% of my grade? ›

Calculating the Grade

For example, if you got a score of 90 percent on the test and the test is worth 20 percent of your overall grade, you would multiply 90 by 0.2 for a value of 18 points out of the possible 20 points.

How much grade percentage is 100 points? ›

Letter GradePercentagePoint total on 1st paper
7 more rows

Is 95 an A or A+? ›

Common examples of grade conversion are: A+ (97–100), A (93–96), A- (90–92), B+ (87–89), B (83–86), B- (80–82), C+ (77–79), C (73–76), C- (70–72), D+ (67–69), D (65–66), D- (below 65).

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