# 10 Wrong Out of 100 — What Grade? — Test Grade Calculator

> 10 wrong out of 100 questions gives 90% — an A. See the full score, letter grade, and the EZ-grader table for every possible result on a 100-question test.

- **Answer:** 90% — A
- **Category:** Education & Grades
- **Interactive calculator:** https://youcalc.com/en/education-grades/test-grade-calculator/10-wrong-out-of-100/
- **Price:** Free, no sign-up required
- **Full calculator:** [Test Grade Calculator](https://youcalc.com/en/education-grades/test-grade-calculator/)
- **Pre-filled inputs:** `m=wrong&n=10&t=100`

| Metric | Value |
| --- | --- |
| Score | 90% |
| Letter grade | A |
| Questions correct | 90 / 100 |
| Questions wrong | 10 / 100 |


## Overview

Dropping 10 questions on a 100-question test still leaves 90 correct and a 90% — an A. On a 100-question test each question is worth exactly 1%, making the math refreshingly simple: your wrong count equals your points lost. The A/B boundary sits at exactly 10 wrong; 11 wrong drops to 89% (B). The EZ-grader table below is especially useful for final exams in this format.

## Method

The percentage score is computed as percent = (correct / total) × 100 + curvePts, clamped to the interval [0, 100]. The letter grade is then assigned using the standard five-band scale: a percentage of 90 or above earns an A, 80–89 a B, 70–79 a C, 60–69 a D, and anything below 60 an F. These cutoffs are consistent across the two authoritative references used for this calculator: the Calculator.net EZ-grader tool and the ThoughtCo grade-percentage guide. The full reference table is generated by iterating wrong from 0 to total, computing correct = total − wrong for each step, and applying the same formula to produce a row of (wrong, percent, letter) for every possible outcome.

## Related calculators

- [Weighted Grade Calculator](https://youcalc.com/en/education-grades/weighted-grade-calculator/)
- [Grade Percentage to Letter Grade & GPA Calculator](https://youcalc.com/en/education-grades/grade-percentage-letter/)
- [Final Grade Calculator](https://youcalc.com/en/education-grades/final-grade-calculator/)

## Sources

- https://www.calculator.net/test-grade-calculator.html
- https://www.thoughtco.com/how-to-calculate-your-grade-2086709

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Interactive version: https://youcalc.com/en/education-grades/test-grade-calculator/10-wrong-out-of-100/ · From YouCalc — https://youcalc.com