100-Question Test Grade Calculator
The one test length where the math is trivial: every question is worth exactly 1%. This is the simplest possible scoring. Enter how many you missed (or got correct) and instantly see your percentage and letter grade.
80.0%
100-Question Test Score Chart
Every possible score on a 100-question test. Since each question equals 1%, the math is instant: miss 20 questions and you get 80%. Your current score is highlighted.
| Wrong | Correct | Percentage | Grade |
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How This Is Calculated
Example: On a 100-question test, you answer 80 correctly (20 wrong):
Score = (80 / 100) × 100 = 0.80 × 100 = 80% (B grade)
On a 100-question test, each question is worth exactly 1 percentage point. 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 your exact thresholds.
Frequently Asked Questions
How much does each question count on a 100-question test?
Each question is worth exactly 1 percentage point. This is the defining simplicity of 100-question tests: 100 total points ÷ 100 questions = 1 point each. So 90 correct gives you 90%, 85 correct gives you 85%, and so on.
What is 90 out of 100 as a letter grade?
90 out of 100 is 90%, which is an A (typically 90–100% on the standard US grading scale). You missed 10 questions, and the calculator shows this immediately.
What is 85 out of 100 as a percentage and letter grade?
85 out of 100 is 85%, which is a B (80–89% on the standard scale). You missed 15 questions.
Is 70 out of 100 a passing grade?
Yes, 70 out of 100 is 70%, which is a C on the standard US grading scale (70–79%). A C is typically considered a passing grade at most schools. However, some institutions require a higher minimum (like 60% or 75%), so always check your course syllabus.
Do all schools use the same grading scale?
No. Most US schools use 90–100% = A, 80–89% = B, etc., but some have different cutoffs (like 93% for A, or weighted scales). Always verify with your syllabus or ask your instructor to confirm the exact grading scale used in your class.
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 by school, district, and instructor. The scale shown here is the default reference. Always verify with your course syllabus for your exact thresholds.