How to calculate 12 out of 30
12 ÷ 30 × 100 = 40%
Divide the number right by the total and multiply by 100. Teachers usually round to the nearest whole percent, so12/30 is recorded as 40% — an F on the standard 90/80/70/60 scale and an F on a plus/minus scale. Each question is worth 3.33%, so 18 wrongcost 60 points.
Nearby scores out of 30
12 out of nearby totals
- 12 out of 28 is 42.86% (F)
- 12 out of 29 is 41.38% (F)
- 12 out of 31 is 38.71% (F)
- 12 out of 32 is 37.5% (F)
Grade a whole test of 30
See the full grading chart for 30 questions for every score out of 30, or open the Easy Grader with 30 questions to mark each paper, add half points and use your own scale.