Why this site exists
Built for the week before finals
Every semester ends the same way: a student staring at a gradebook full of percentages, trying to answer one question — "what do I need on the final?" The answer is buried in syllabus weights, category averages and a grading scale, and getting it wrong in either direction is costly. Aim too low and you coast into a worse grade than you needed to accept. Aim blind and you burn out studying for a score that was never required.
Ace Grade Calculator started as the answer to that one question and grew into a full toolbox. Each tool does a single grade job properly — weighted averages, final-exam targets, GPA, points totals, grading charts, curves — and shows its working, so the number it gives you is one you can check, not just trust.
Teachers told us they had the mirror-image problem: a pile of tests, a percentage to assign to each, and no patience for dividing by hand. That's why the set includes the EZ Grader chart and a class-wide curve calculator alongside the student tools.
The one formula behind most of it
Grade % = Σ (score × weight) ÷ Σ (weight)
Multiply every score by how much it counts, add those up, divide by the total weight. That's the weighted average at the heart of the grade, final grade and points tools — nothing fancier, and nothing hidden.
Where a result depends on a choice — like whether your school uses plus/minus letters — the calculator lets you switch it, rather than deciding for you.