30 out of 42 as a percentage

71.4% — C approx. 2.0 GPA

30 / 42 x 100 = 71.4%

Letter grades here use the standard 10-point scale (A 90+, B 80+, C 70+, D 60+, F below 60). Your school's scale may differ — check your syllabus, or use the Test Grade Calculator where the scale is configurable.

How to Calculate 30 out of 42 as a Percentage

Divide the numerator by the denominator, then multiply by 100. Using the real numbers:

percent = (X / Y) x 100

percent = (30 / 42) x 100

percent = 0.7143 x 100 = 71.4%

On the standard 10-point letter-grade scale, 71.4% maps to a letter grade of C, which carries a GPA value of 2.0.

Is 30 out of 42 a Good Score?

71.4% is an average, passing score. 30 out of 42 meets the baseline for most courses — you have demonstrated acceptable knowledge of the material. A C means you are passing, though further review of weaker areas could meaningfully raise your grade next time.

Score Reference Table — Out of 42

Key scores on a 42-point assessment, with percentages and letter grades. Your score is highlighted.

Score Percentage Letter
42/42 100% A
37/42 88.1% B
32/42 76.2% C
30/42 71.4% C
27/42 64.3% D
22/42 52.4% F
17/42 40.5% F
12/42 28.6% F
7/42 16.7% F
2/42 4.8% F

Letter Grade Breakdown

  • A — 90% and above (4.0 GPA)
  • B — 80%–89.9% (3.0 GPA)
  • C — 70%–79.9% (2.0 GPA)
  • D — 60%–69.9% (1.0 GPA)
  • F — below 60% (0.0 GPA)

If you answered 30 out of 42 questions correctly, your score is 71.4% — a letter grade of C. You got 12 questions wrong.

Use the Test Grade Calculator (pre-filled for 42 questions, 12 wrong) for a full grading-scale table. Or convert any percentage with the Percent to Letter Grade converter.

Frequently Asked Questions

What is 30 out of 42 as a percentage?

30 out of 42 as a percentage is 71.4%. The formula is (30 divided by 42) times 100 = 71.4%. On the standard 10-point grading scale that is a C (2.0 GPA).

Is 30 out of 42 a passing grade?

Yes — 71.4% (30/42) is a passing score on the standard 10-point scale. It earns a letter grade of C. Most courses require at least 60% (a D) to pass, though some programs require a C (70%) or higher for credit toward your major.

How many questions did I get wrong if I scored 30 out of 42?

You got 12 questions wrong out of 42. That is 28.6% incorrect, leaving you with a score of 71.4% (C).

Nearby Scores — Out of 42

See all scores out of 42 →