What grade is 15 out of 20?

15 out of 20 is 75%, which is a C on the US standard grading scale (A–F). On the European 10-point scale, it corresponds to a 7.5.

What grade is 20 out of 30?

20 out of 30 is 66.7%, which is a D on the US standard grading scale. On the Italian university scale (trentesimi), this corresponds to 20/30 (Sufficiente).

How do I convert a test score to a letter grade?

Divide your score by the total possible points and multiply by 100 to get a percentage. Then map the percentage to a letter grade: 90–100% = A, 80–89% = B, 70–79% = C, 60–69% = D, below 60% = F. For example, 37 out of 50 = 74% = C.

What grade is 12 out of 15?

12 out of 15 is 80%, which is a B on the US standard grading scale (A–F). On the European 10-point scale, it corresponds to an 8.0.

Score to Grade Converter — Instant Results for Any Test

Enter your score and total points to instantly find your letter grade and percentage. Supports A–F, 10-point, European, and Italian scales.

Quick Score Lookup

Find your grade instantly — click any score to open the calculator with your numbers pre-filled.

Score	Percentage	Grade	Calculate
12 / 15	80%	B	Calculate →
15 / 20	75%	C	Calculate →
16 / 20	80%	B	Calculate →
14 / 25	56%	F	Calculate →
20 / 30	66.7%	D	Calculate →
26 / 30	86.7%	B	Calculate →
37 / 50	74%	C	Calculate →
48 / 49	98%	A	Calculate →
75 / 100	75%	C	Calculate →
85 / 100	85%	B	Calculate →

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How Score Conversion Works

Converting a score to a grade is a two-step process. First, calculate the percentage: divide your score by the total possible points and multiply by 100. Then, map the percentage to a grade using the selected grading scale. For example, if you scored 37 out of 50: • Percentage = (37 ÷ 50) × 100 = 74% • US Standard: C • European 0-10: 7.4 • Italian School: 7 (Discreto) Switch to 'Score / Total' mode in the Quick Grader for instant conversion — just enter your score and total points.

$Score to percentage conversion formula and example$

Score ÷ Total × 100 = percentage

Use 'Score / Total' mode to quickly answer questions like 'what grade is 16 out of 20?' — enter 20 as total and 16 as your score.

Using the Grade Chart

Enable the grade chart in Quick Grader to see a complete conversion table for any test size. The chart shows every possible score with its percentage and corresponding grade. Click any row to select it. The chart is especially useful for teachers who need a reference table for grading. Enter the total number of questions or points, select a grading scale, and enable 'Show Grade Chart'. The table instantly generates all possible outcomes.

$Grade chart showing complete conversion table for a 20-point test$

The grade chart shows every possible score and its grade

Common Conversions

Here are some frequently searched score conversions: • 15/20 = 75% — Italian School: 8 (Buono), US: C • 16/20 = 80% — Italian School: 8 (Buono), US: B • 20/30 = 66.7% — Italian University: 20 (Sufficiente), US: D • 26/30 = 86.7% — Italian University: 26 (Buono), US: B • 37/50 = 74% — US: C, European: 7.4 • 75/100 = 75% — US: C, European: 7.5 • 85/100 = 85% — US: B, European: 8.5 Select different grading scales to see how the same percentage maps to different grades across systems.

The same percentage can mean very different things across grading systems. A 60% is passing in the US (D), but insufficient in Italy (where 60% of 10 = 6, barely passing).

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