# 10 Wrong Out of 50 — What Grade? — Test Grade Calculator

> 10 wrong out of 50 questions gives 80% — a B. See the full score, letter grade, and the EZ-grader table for every possible result on a 50-question test.

- **Answer:** 80% — B
- **Category:** Education & Grades
- **Interactive calculator:** https://youcalc.com/en/education-grades/test-grade-calculator/10-wrong-out-of-50/
- **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=50`

| Metric | Value |
| --- | --- |
| Score | 80% |
| Letter grade | B |
| Questions correct | 40 / 50 |
| Questions wrong | 10 / 50 |


## Overview

On a 50-question test, 10 wrong leaves 40 correct — exactly 80%, the floor of a B. The 50-question midterm is a classroom staple; each question here is worth 2%, so every 5 wrong answers cost exactly 10 percentage points. Miss 15 and you slip to 70% (C); miss 5 and you rise to 90% (A). The EZ-grader table below covers all 51 possible scores.

## 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-50/ · From YouCalc — https://youcalc.com