Easy Grader

Easy Grader vs EZ Grader vs QuickGrade: what's the difference?

"Easy Grader," "EZ Grader," and "QuickGrade" all refer to the same basic tool concept: a wrong-answer-to-percentage chart that lets teachers grade a stack of identical papers without recalculating each one. The name difference is branding, not function. Physical EZ Grader wheels, the yellow cardboard slide-rule style gadget, have been a classroom fixture for decades. Online versions replicate the same reference table in a browser, with a live chart that updates as you change the total question count.

This tool goes a step further with three scale options (detailed A+ through F, simplified A through F, and custom cutoffs you set yourself), a half-point mode that moves the counter and the chart in steps of 0.5 (the Test Grade Calculator still covers rubric-based assessments), and a printable chart formatted specifically for desktop printing rather than screen-only viewing.

Why teachers need a separate tool from students

A student's grade calculator solves one question per use — "what's my grade?" A teacher's grading workflow solves the same calculation dozens of times in a row, on the same assessment, with only the wrong-answer count changing. The design priority is different: teachers need a fast wrong-count stepper (+/−), a live result, and a reference chart for the full range of possible scores — not a multi-row assignment entry form. That's why Easy Grader exists as its own page rather than a mode in the main grade calculator.

How to use Easy Grader for tests with different point values

Easy Grader assumes each question is worth one point. Tick half-point mode when you take off 0.5 for a partly right answer. For a test where some questions are worth 2 points or more, or where answers are scored on a rubric, use the Test Grade Calculator instead — enter total points earned and total points possible for each paper. The percentage formula is identical; only the input method changes.

How the wrong-answer formula works

Grading from wrong answers instead of points earned is faster for a stack of identical assessments, because you only need to count what a student missed, not re-add every correct answer.

Worked example: a 30-question quiz

Notice the step size: on a 30-question test, each wrong answer costs 3.33 percentage points. Shorter tests have bigger steps, which is why a printed chart is faster than mental math once you are grading more than a few papers.

Grading partial credit with half-point mode

Tick half-point mode above and the stepper moves in increments of 0.5 instead of whole numbers, with the chart listing every half-point score. This matters most on short quizzes: on a 10-question quiz, one half point is worth 5 percentage points, enough to change a letter grade. On a 50-question test, the same half point is worth only 1 percentage point.

Half points work best for short-answer and fill-in questions where a partly correct answer is common. For a rubric with different point values per question, use the Test Grade Calculator instead, which accepts decimal values directly. Our full guide on easy grader with half points covers verified charts for several test lengths and common rounding mistakes.

Choosing the right grading scale

Three scale options are available above, and the right one depends on your department's policy.

Whichever scale you use for grading, keep it consistent across every paper in the same stack. For the full range of percentage-to-letter conventions, see our Grading Scale page or the grading scale guide.