How to calculate your grade
Here it is with your numbers:
- Add up the points you earned: 45 + 18 + 80 = 143.
- Add up the points possible: 50 + 20 + 100 = 170.
- Divide: 143 ÷ 170 = 0.8412.
- Multiply by 100 to turn it into a percent: 84.12%.
It means you have a B (84.12%) so far, and an A starts at 90%.
With weighted categories, the formula becomes (score × weight) + (score × weight) + … ÷ the weights that are graded. The steps above switch automatically when you add weights.
Source Instructure (Canvas) · How weighted course grades are calculated ↗
Missing assignments and "what if" scores
A blank score means "not graded yet" and is left out, the same way school gradebooks like Canvas work. If a missing assignment will count as zero, type 0 to see the damage. To try a "what if", type the score you hope to get into a blank row: the grade updates as you type.
Grade examples
Letter grades and the 4.0 scale
| Letter | Percent | GPA points |
|---|---|---|
| AYou | 90 – 100% | 4.0 |
| BYou | 80 – 89% | 3.0 |
| CYou | 70 – 79% | 2.0 |
| DYou | 65 – 69% | 1.0 |
| FYou | Below 65% | 0.0 |
This is one common scale. Schools set their own cutoffs and many round 89.5% up to an A, so check your syllabus. The College Board's table jumps from D at 66 to F below 65, so we count 65 as a D.
Source College Board · How to calculate your GPA on a 4.0 scale ↗
FAQs
How do you calculate your grade?
If your class uses points, add up the points you earned, divide by the points possible, and multiply by 100: 143 out of 170 is 84.12%. If it uses weighted categories, multiply each category’s percent by its weight and add them up.
Source Instructure (Canvas) · How weighted course grades are calculated ↗
How do you calculate a grade with weights and missing assignments?
Gradebooks like Canvas leave out categories with nothing graded yet and divide by the weights that are left. With 75% in a 20% category and 98% in a 50% category, that is (0.75 × 0.20 + 0.98 × 0.50) ÷ 0.70 = 91.43%. If a missing assignment counts as zero, enter 0 for it.
How do you turn a percentage into a letter grade?
On a common scale, 90 – 100% is an A, 80 – 89% a B, 70 – 79% a C, the upper 60s a D, and below 65% an F. Schools set their own cutoffs, so check your syllabus.
Source College Board · How to calculate your GPA on a 4.0 scale ↗
Sources
- Instructure (Canvas): How weighted course grades are calculated
- College Board: How to calculate your GPA on a 4.0 scale