224 out of 309 = 72.49%
If you scored 224 points out of a possible 309 points, your percentage grade is 72.49%, which is a C- letter grade with a GPA of 1.7.
Standard US Scale
4.0 Scale
Grade Description
Satisfactory - Meets basic requirements with some gaps in understanding.
Improvement Tips
- Identify and focus on your weaker areas
- Increase study time and create a regular schedule
- Seek help from teachers or tutors for difficult concepts
- Use multiple learning resources (videos, books, practice tests)
Detailed Grade Table
| Grade | Correct | Incorrect | Percent |
|---|---|---|---|
| A+ | 300 to 309 | 0 to 9 | 97.00 to 100.00 |
| A | 288 to 299 | 10 to 21 | 93.00 to 96.99 |
| A- | 279 to 287 | 22 to 30 | 90.00 to 92.99 |
| B+ | 269 to 278 | 31 to 40 | 87.00 to 89.99 |
| B | 257 to 268 | 41 to 52 | 83.00 to 86.99 |
| B- | 248 to 256 | 53 to 61 | 80.00 to 82.99 |
| C+ | 238 to 247 | 62 to 71 | 77.00 to 79.99 |
| C | 226 to 237 | 72 to 83 | 73.00 to 76.99 |
| C- | 217 to 225 | 84 to 92 | 70.00 to 72.99 |
| D+ | 208 to 216 | 93 to 101 | 67.00 to 69.99 |
| D | 195 to 206 | 103 to 114 | 63.00 to 66.99 |
| D- | 186 to 194 | 115 to 123 | 60.00 to 62.99 |
| F | 0 to 185 | 124 to 309 | 0.00 to 59.99 |
Your grade of 72.49% (C-) is highlighted in the table above. The "Correct" and "Incorrect" columns show the equivalent number of questions for your total of 309 points.
To calculate 224 out of 309 as a percentage, you divide 224 by 309 and then multiply by 100:
This calculation gives you your percentage score, which can then be converted to a letter grade based on your school or institution's grading scale.
Step-by-step explanation:
- Divide the points earned (224) by the total points possible (309):
224 ÷ 309 = 0.7249 - Multiply the result by 100 to get the percentage:
0.7249 × 100 = 72.49% - Convert the percentage to a letter grade using the standard scale:
72.49% = C-
Try Another Calculation
Here are some related grade calculations that might be helpful:
A score of 224 out of 309 (72.49%) has different implications depending on the educational context:
| Context | Interpretation |
|---|---|
| Homework Assignment | Adequate understanding with some gaps |
| Quiz or Test | Good preparation with some knowledge gaps |
| Final Exam | Solid understanding of core concepts |
| Course Grade | Satisfactory performance with room for improvement |
Need to calculate a different grade?
Open Grade Calculator