Quiz Score Calculator
Scoring a Quiz Beyond a Simple Percentage
Not every quiz is graded the same way. A classroom quiz usually just wants correct answers as a share of the total, but a trivia league, a game show format, or a negative-marking exam needs points weighted by difficulty and penalized for wrong guesses. This calculator handles both approaches so the score reflects the actual scoring rules in play, not a generic percentage.
The Formulas
Basic mode:
Score% = (Correct ÷ Total) × 100
Weighted mode:
Raw Score = (Correct × Points per Correct) − (Incorrect × Penalty per Wrong)
Score% = (Raw Score ÷ Max Possible Score) × 100
Worked Example (Weighted Mode)
15 correct and 3 incorrect out of 20 questions, worth 5 points each with a 2-point penalty per wrong answer:
| Step | Calculation | Result |
|---|---|---|
| Raw score | (15 × 5) − (3 × 2) | 69 pts |
| Max possible score | 20 × 5 | 100 pts |
| Score percentage | (69 ÷ 100) × 100 | 69% |
Where This Calculation Matters
- Negative-marking exams — standardized tests and some trivia formats subtract points for wrong guesses, which a plain percentage formula can't reflect.
- League and tournament scoring — comparing performance across rounds with different point values per question.
- Self-assessment — checking a practice quiz score against a pass threshold before a real exam.
How to Use This Calculator
- Choose Basic Score for a straightforward percentage, or Weighted Score for points-based scoring with penalties.
- In basic mode, enter Correct Answers and Total Questions.
- In weighted mode, enter Correct Answers, Incorrect Answers, Total Questions, Points per Correct, and optionally a Penalty per Wrong.
- Select Calculate to see the resulting score as a percentage (and raw points, in weighted mode).
Related Calculations
For team-based trivia scoring across multiple rounds, see the Trivia Night Team Score Calculator, or the Jeopardy Score Calculator for value-weighted question formats.