calculation mode

Percentage Grade Calculator

Quickly calculate your percentage score based on points earned out of the total possible points.

Back to Test Grade Calculator

Grade Calculator Tips

Click to show tips

Try an Example

Pick a scenario to see how the calculator works, then adjust the values

Final Exam

Calculate grade for a 200-point final exam with 172 points earned

Key values: 172/200 pts · points-based · 86% (B)

Pop Quiz

Quick 50-point pop quiz with 42 points earned

Key values: 42/50 pts · points-based · 84% (B)

Weighted Semester

Calculate weighted grade across assignments, quizzes, midterm, and final

Key values: 4 categories · weighted · full breakdown

Documentation

Grade Percentage Formula

\text{Grade \%} = \frac{\text{points earned}}{\text{total possible points}} \times 100

For example, 42 out of 50 on a quiz: $\frac{42}{50} \times 100 = 84\%$ .

Weighted Grade Categories

Many courses weight different assignment types differently. The weighted average:

\text{Final grade} = \sum_{i} w_i \times g_i

where $w_i$ is the weight (as a decimal) and $g_i$ is the percentage score in category $i$ .

Example

Category	Weight	Score	Weighted
Homework	20%	92%	18.4
Quizzes	15%	85%	12.75
Midterm	25%	78%	19.5
Final exam	40%	?	?

Current weighted subtotal: $18.4 + 12.75 + 19.5 = 50.65$ out of 60 possible (non-final categories).

What Score Do I Need on the Final?

To find the minimum final exam score needed for a target grade $T$ :

g_{\text{final}} = \frac{T - \sum_{i \neq \text{final}} w_i g_i}{w_{\text{final}}}

From the example above, to get a B (80%) overall:

g_{\text{final}} = \frac{80 - 50.65}{0.40} = 73.4\%

You need at least a 73.4% on the final to get a B in the course.

Common Grading Scales

Letter	Percentage	GPA
A	90–100%	4.0
B	80–89%	3.0
C	70–79%	2.0
D	60–69%	1.0
F	Below 60%	0.0

Scales vary by institution. Some use plus/minus grades (A−, B+), 7-point scales, or different percentage boundaries.

Frequently Asked Questions

How do I calculate my grade percentage?

Divide your points earned by the total possible points and multiply by 100. For example, 42 out of 50 gives $\frac{42}{50} \times 100 = 84\%$ . For weighted categories, multiply each category percentage by its weight and sum the results.

What is a weighted grade?

A weighted grade accounts for the relative importance of different assignment categories. For example, if homework is 20% and the final exam is 40%, the final exam has twice the impact on your overall grade. The weighted average formula is $\text{Final grade} = \sum w_i \times g_i$ .

How do I find what I need on the final exam?

Use the formula: $g_{\text{final}} = \frac{T - \sum w_i g_i}{w_{\text{final}}}$ , where T is your target grade and the sum covers all non-final categories. For example, if you need an 80% overall and have 50.65 points from 60% of coursework, you need $\frac{80 - 50.65}{0.40} = 73.4\%$ on the final.

Do all schools use the same grading scale?

No. While many US schools use A (90-100%), B (80-89%), C (70-79%), D (60-69%), and F (below 60%), scales vary by institution. Some use plus/minus grades, 7-point scales, or different percentage boundaries. Always check your school's specific grading policy.

Can extra credit push my grade above 100%?

It depends on the instructor's policy. Some allow grades above 100% with extra credit, while others cap at 100%. Even if your percentage exceeds 100%, the letter grade typically caps at an A or A+. Check your syllabus for your instructor's specific extra credit rules.

Related calculation-mode Variants

Explore more calculation-mode options

GPA Calculation

GPA Calculator | Calculate Your Grade Point Average

Use this calculator

More Education Calculators

Explore the category

Academic Probation Calculator

Assignment Grade Calculator

Class Rank Calculator

Find Your Percentile & Standing

GPA Calculator

Scholarship GPA Calculator | Check Eligibility & Plan Recovery