How to calculate 21 out of 24
21 ÷ 24 × 100 = 87.5%
Divide the number right by the total and multiply by 100. Teachers usually round to the nearest whole percent, so21/24 is recorded as 88% — a B on the standard 90/80/70/60 scale and a B+ on a plus/minus scale. Each question is worth 4.17%, so 3 wrongcost 12.5 points.
Nearby scores out of 24
21 out of nearby totals
- 21 out of 22 is 95.45% (A)
- 21 out of 23 is 91.3% (A−)
- 21 out of 25 is 84% (B)
- 21 out of 26 is 80.77% (B−)
Grade a whole test of 24
See the full grading chart for 24 questions for every score out of 24, or open the Easy Grader with 24 questions to mark each paper, add half points and use your own scale.