How to calculate 64 out of 80
64 ÷ 80 × 100 = 80%
Divide the number right by the total and multiply by 100. Teachers usually round to the nearest whole percent, so64/80 is recorded as 80% — a B on the standard 90/80/70/60 scale and a B− on a plus/minus scale. Each question is worth 1.25%, so 16 wrongcost 20 points.
Nearby scores out of 80
- 62/80 is 77.5% (C+)
- 63/80 is 78.75% (C+)
- 65/80 is 81.25% (B−)
- 66/80 is 82.5% (B)
64 out of nearby totals
- 64 out of 78 is 82.05% (B−)
- 64 out of 79 is 81.01% (B−)
- 64 out of 81 is 79.01% (C+)
- 64 out of 82 is 78.05% (C+)
Grade a whole test of 80
See the full grading chart for 80 questions for every score out of 80, or open the Easy Grader with 80 questions to mark each paper, add half points and use your own scale.