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

> 15 wrong out of 100 questions gives 85% — a B. See the score, letter grade, and the full EZ-grader table for every possible 100-question test result.

- **Answer:** 85% — B
- **Category:** Education & Grades
- **Interactive calculator:** https://youcalc.com/en/education-grades/test-grade-calculator/15-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=15&t=100`

| Metric | Value |
| --- | --- |
| Score | 85% |
| Letter grade | B |
| Questions correct | 85 / 100 |
| Questions wrong | 15 / 100 |


## Overview

Missing 15 out of 100 gives 85 correct and 85% — a solid B in the middle of the B band (80–89%). On a 100-point test the arithmetic is one-to-one: every question you got wrong is one point off your grade. To climb into A range you need to recover 5 of those 15 mistakes (get to 90 correct). Check the EZ-grader table below to map each wrong count to its grade.

## 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/15-wrong-out-of-100/ · From YouCalc — https://youcalc.com