18 out of 31 = 58.06%

If you scored 18 points out of a possible 31 points, your percentage grade is 58.06%, which is a F letter grade with a GPA of 0.0.

Percentage
58.06%
Letter Grade
F

Standard US Scale

GPA
0.0

4.0 Scale

Grade Assessment
Understanding what your grade means

Grade Description

Unsatisfactory - Does not meet minimum requirements and needs substantial improvement.

Improvement Tips

  • Schedule a meeting with your teacher immediately
  • Consider intensive tutoring or academic support services
  • Rebuild your foundation with basic concepts first
  • Develop better study habits and time management skills
  • Ask for extra credit opportunities if available
Grade Scale
Your grade highlighted in the standard scale

Detailed Grade Table

GradeCorrectIncorrectPercent
A+31 to 310 to 097.00 to 100.00
A29 to 301 to 293.00 to 96.99
A-28 to 283 to 390.00 to 92.99
B+27 to 274 to 487.00 to 89.99
B26 to 265 to 583.00 to 86.99
B-25 to 256 to 680.00 to 82.99
C+24 to 247 to 777.00 to 79.99
C23 to 238 to 873.00 to 76.99
C-22 to 229 to 970.00 to 72.99
D+21 to 2110 to 1067.00 to 69.99
D20 to 2011 to 1163.00 to 66.99
D-19 to 1912 to 1260.00 to 62.99
F0 to 1813 to 310.00 to 59.99

Your grade of 58.06% (F) is highlighted in the table above. The "Correct" and "Incorrect" columns show the equivalent number of questions for your total of 31 points.

How to calculate 18 out of 31 as a percentage

To calculate 18 out of 31 as a percentage, you divide 18 by 31 and then multiply by 100:

(18 ÷ 31) × 100 = 58.06%

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:

  1. Divide the points earned (18) by the total points possible (31):
    18 ÷ 31 = 0.5806
  2. Multiply the result by 100 to get the percentage:
    0.5806 × 100 = 58.06%
  3. Convert the percentage to a letter grade using the standard scale:
    58.06% = F

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Frequently Asked Questions

Educational Context
Understanding what this grade means in an educational setting

A score of 18 out of 31 (58.06%) has different implications depending on the educational context:

ContextInterpretation
Homework AssignmentInsufficient understanding, requires review
Quiz or TestInadequate preparation, requires comprehensive review
Final ExamInsufficient understanding of course material
Course GradeBelow acceptable performance standards
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Common Grade Conversions
90-100%A (4.0)
80-89%B (3.0)
70-79%C (2.0)
60-69%D (1.0)
0-59%F (0.0)