Total points grading: why it works and when it can surprise you
Total-points grading has one genuine advantage: it's transparent. Every point is tracked explicitly, and the formula is just addition and division. There's no hidden category-weight system — a 10-point homework and a 10-point quiz carry equal influence because they're equal in points, not because of a stated policy.
The surprise comes when point totals across assignment types are very unequal. If a course gives 5 homework assignments of 10 points each (50 points total) and one final exam worth 300 points, that final exam controls 300 ÷ 350 = 86% of the course grade — even though the syllabus says nothing about "weights." The point totals themselves are the implicit weights. This is a common source of students underestimating how much a high-point final can change their grade.
Points-based grade calculator vs weighted grade calculator
Use a points-based calculator (this page or the Grade Calculator) when your syllabus lists point values for each assignment and your grade is determined by a running total. Use the Weighted Grade Calculator when your syllabus explicitly lists percentage weights for categories (homework = 20%, exams = 50%, etc.) and uses those weights regardless of individual point values. When in doubt, check whether your syllabus says "X points" or "X percent" — that distinction determines which calculator gives the right answer.