50-Question Test Grade Calculator
50-question tests are standard for full-length midterms and final exams. Each question is worth exactly 2%. Enter how many you missed to instantly see your percentage and letter grade.
90.0%
50-Question Test Score Chart
This complete reference table shows your grade for every possible number of wrong answers. Your current score is highlighted.
| Questions Wrong | Questions Correct | Percentage | Letter Grade |
|---|
How Test Grades Are Calculated
or equivalently
Score = ((50 − Questions Wrong) / 50) × 100%
Example: On a 50-question test, you answer 45 correctly (5 wrong):
Score = (45 / 50) × 100 = 0.90 × 100 = 90% (A grade)
On a 50-question test, each question is worth exactly 2 percentage points (100 ÷ 50 = 2). The letter grade cutoffs follow the standard US grading scale: A (90–100%), B (80–89%), C (70–79%), D (60–69%), F (below 60%). However, grading scales vary by school and instructor, so always check your syllabus for the exact thresholds used in your class.
Frequently Asked Questions
How many questions can I miss out of 50 and still get an A?
To get an A (90% or higher), you can miss 5 or fewer questions on a 50-question test. If you get 45 or more correct, you'll have 90% or above. See the reference table above for exact scores at every level.
What is 42 out of 50 as a percentage and letter grade?
42 out of 50 is 84%, which is a B grade (80–89%). You missed 8 questions, and each question on a 50-question test is worth 2 percentage points.
Why is each question worth 2% on a 50-question test?
A 50-question test is worth 100 total percentage points. Dividing 100 by 50 questions gives you 2 percentage points per question. So each wrong answer costs exactly 2%.
Do all schools use the same grading scale?
No. Most US schools use 90–100% = A, 80–89% = B, etc., but some use different cutoffs (like 93% for A or weighted scales). Always check your syllabus or ask your instructor to confirm their grading scale. This calculator uses the standard scale as a default.
Sources
Grading scale note: This calculator uses the most common US standard (A: 90–100%, B: 80–89%, C: 70–79%, D: 60–69%, F: <60%). However, grading scales vary significantly by school, district, and instructor. The scale shown here is a default reference, not an official conversion. Always verify with your course syllabus.