Grading Scale Chart Generator
Print the score chart for any number of questions: every possible number wrong with its percentage and letter grade, plus curve and rounding rules.
Unit 4 test
| Number wrong | Number right | Raw % | Score | Grade |
|---|---|---|---|---|
| 0 | 25 | 100.0 | 100% | A+ |
| 1 | 24 | 96.0 | 96% | A |
| 2 | 23 | 92.0 | 92% | A- |
| 3 | 22 | 88.0 | 88% | B+ |
| 4 | 21 | 84.0 | 84% | B |
| 5 | 20 | 80.0 | 80% | B- |
| 6 | 19 | 76.0 | 76% | C |
| 7 | 18 | 72.0 | 72% | C- |
| 8 | 17 | 68.0 | 68% | D+ |
| 9 | 16 | 64.0 | 64% | D |
| 10 | 15 | 60.0 | 60% | D- |
| 11 | 14 | 56.0 | 56% | F |
| 12 | 13 | 52.0 | 52% | F |
| 13 | 12 | 48.0 | 48% | F |
| 14 | 11 | 44.0 | 44% | F |
| 15 | 10 | 40.0 | 40% | F |
| 16 | 9 | 36.0 | 36% | F |
| 17 | 8 | 32.0 | 32% | F |
| 18 | 7 | 28.0 | 28% | F |
| 19 | 6 | 24.0 | 24% | F |
| 20 | 5 | 20.0 | 20% | F |
| 21 | 4 | 16.0 | 16% | F |
| 22 | 3 | 12.0 | 12% | F |
| 23 | 2 | 8.0 | 8% | F |
| 24 | 1 | 4.0 | 4% | F |
| 25 | 0 | 0.0 | 0% | F |
Letter-grade cut-offs differ by school, district and country, so they are a field here rather than a fixed assumption — edit the list and the whole chart re-letters itself. The chart is built in your browser and no student data is uploaded.
What is the Grading Scale Chart Generator?
A grading scale chart generator prints the score for every possible number of wrong answers on a test: score equals total minus wrong, divided by total, times 100. This one adds editable letter-grade cut-offs, a curve offset, five rounding rules, half-point questions and a weighted-section calculator.
- Every possible score from full marks to zero, with percentage and letter grade
- Editable cut-off list, so any grading scale works without touching code
- Curve offset in percentage points, positive or negative, applied before rounding
- Five rounding rules including nearest whole with .5 rounding up
- Half-point question support, stepping the chart by 0.5
- Weighted-section calculator with normalised weights, plus CSV and printable exports
How to use the Grading Scale Chart Generator
- 1
Enter the number of questions, or switch the chart to count points instead.
- 2
Edit the letter-grade cut-offs list — one line each, the minimum percentage then the label.
- 3
Add a curve in percentage points if you are adjusting the whole class, and pick a rounding rule.
- 4
Tick half-point questions if your test has half marks, so the chart steps by 0.5.
- 5
Turn on weighted sections for a multi-part assessment, then copy or download the finished chart.
About the Grading Scale Chart Generator
This is the chart that lives taped above a teacher's desk: for a 25-question test, every possible number wrong with the percentage and letter grade beside it. Type how many questions or points the assessment is worth and the whole chart appears, ready to print or pin.
Everything that varies between schools is a field rather than an assumption. Letter-grade cut-offs are a plain list you edit, so a 90/80/70/60 scale, a 93/85/77/70 scale or an international scale all work. You can add or subtract a curve in percentage points, choose how scores round — one decimal, nearest whole with .5 up, always up, always down or to the nearest half percent — and switch to half-point steps for tests with half marks.
A weighted-section calculator sits alongside for assessments built from parts that count differently, and the finished chart exports as CSV or a fixed-width printable list. All of it is calculated in your browser and no student data is uploaded.
Frequently asked questions
How do you calculate a test score out of a number of questions?
Subtract the number wrong from the total, divide by the total and multiply by 100. On a 25-question test, three wrong gives (25 − 3) ÷ 25 × 100 = 88%. The chart does that for every possible number wrong at once.
What are the standard letter-grade cut-offs?
The most common US scale is 90/80/70/60 for A/B/C/D, often with plus and minus bands at 97, 93, 87, 83 and so on. Plenty of schools use different thresholds, and other countries use different systems entirely, so the cut-offs here are a list you edit rather than a fixed rule.
How does the curve option work?
It adds the number of percentage points you enter to every score before rounding, which is the simplest and most transparent kind of curve. Enter a negative number to take marks off. The chart re-letters itself immediately so you can see the effect on grade boundaries.
How do I grade a test with half-point questions?
Tick “half-point questions” and the chart steps by 0.5 instead of 1, so it lists 0.5 wrong, 1 wrong, 1.5 wrong and so on. Enter the total in points rather than questions when marks vary between questions.
How do weighted sections work?
Give each section its points earned, its points possible and a weight. The weights are normalised, so they do not have to add to 100 — a 40/40/20 split and a 2/2/1 split give the same answer. The weighted percentage is then curved and rounded like any other score.
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Apply flat, top-score, square-root or bell curves to a list of class scores and compare the results side by side with the letter grade distribution.
Weighted Grade Calculator
Calculate your course grade when homework, quizzes and exams each count for a set percentage, with a warning when your weights don't add up to 100%.
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