Grade Calculators
GradeLab guides
Plain-language answers to grade calculators questions, written from the same sourced data behind GradeLab. Every guide lists its sources and the date it was last updated.
Updated June 10, 2026
What grade do I need on my final exam to pass?
One formula answers it — needed score = (target − current × (1 − weight)) ÷ weight — worked through four real cases, from an easy 62 to an impossible 160.
Updated June 10, 2026
How do you calculate a weighted course grade?
Weighted grades step by step: multiply each score by its weight and divide by the total — four categories turn 88, 91, 76, and 82 into an 83.65 course grade.