Chemistry 3a Grade Calculator

Disclaimer: This calculator has no official standing and is provided only to help students estimate possible course outcomes. Only your instructor can include all of the considerations and can do the final calculations that will determine your grade. Your final course letter grade depends on your total score, homework, results from lab and other factors as specified in the syllabus. This is the beta version of the calculator and has not been tested against all possible student inputs. Don't assume a letter grade that may be due to an input or software error. Only your instructor can compute the official course standings. Please report any strange results to your instructor.

To use this calculator, you must have recorded your exam and quiz scores as they were posted. Type these into the proper fields. Any remaining fields must be filled with anticipated (what you think you might get) scores to see how well you might do at the end of the course. Any fields left blank will be assumed to be zero and would reduce the calculated grade accordingly.

If any existing scores are found in the input fields, replace them with your own values before pressing the Submit button. You may replace any anticipated scores you have previously entered, pressing Submit again, to play "what if" games for your possible course outcome. Please see the course syllabus for the complete and official description of how your grade is calculated.

Remember: the calculator does not know who you are and has no access to any databases of scores. You must complete every field with your own real or anticipated values. Also, this calculator is not designed to compute your current lecture standing if you input only your current lecture scores. It works only for the course as a whole. Any fields left blank are assumed to be zero points and would compute a course grade far lower than where you currently stand in the lecture part of the course.
Input your real or anticipated quiz scores based on 100. The calculator will convert your percentage scores into points based on 35 for each quiz.
Quiz 1 (100)   Quiz 2 (100)
Quiz 3 (100)   Quiz 4 (100)

Input your real or anticipated hour exams.These are worth up to 100 points each.

Exam 1 (100)   Exam 2 (100)
Exam 3 (100)   Exam 4 (100)

Input your real or anticipated Final Exam score, based on 200 points.

Final Exam (200)

Input your real or anticipated Lab grade, based on 100 points. If all you have is an anticipated letter grade, choose a Percent value from the table on the right.

Lab Score (100)


Your overall points are out of 700, or percent. Look up your possible grade using the table on the right.
The tables below are from the course syllabus
Exams300 pts
Quizzes100 pts
Final200 pts
Lab100 pts
Total700 pts
If it improves your score, the lowest of the four hour exams will be dropped and replaced by the sum of the three highest quizzes. There are no makeup's for missed exams or quizzes. Homework mostly decides borderline grades.
Grade>=%Points (700)
A  >= 87609 pts
AB >= 85595 pts
B  >= 73511 pts
BC >= 70490 pts
C  >= 53371 pts
CD >= 50350 pts
D  >= 43301 pts
DF >= 40280 pts
F  < 40<280 pts