✨ Extra-Credit Grade Calculator

Determine Current Grades, Final Grades, Possible Grades, and Missing Grades

by Professor Stephen T. Abedon

biologyaspoetry.org | phage.org | phage-therapy.org | abedon.phage.org | google scholar

Jump to: 🏫 Class | 📄 How To | ✨ Calculator | 📊 Grades | 📖 Explanation

What is this? Carmen cannot correctly calculate your grade in this course because several grade categories involve extra credit, which Carmen handles poorly. This calculator corrects for that by using the raw percentage figures Carmen reports for each category and applying the proper weighting.

Open your Carmen grades page in a web browser (not the Canvas app), save it as an HTML file:
File → Save Page As →Webpage, Complete (*htm;*html)

This is rather than HTML Only, but try that instead if Webpage, Complete doesn't work; note also that the latter will download a folder as well, which isn't needed for the calculator so can be discarded.

Then drop the html file below, and your grades will be filled in automatically. Note: Carmen’s Print-to-PDF uses encoded fonts that cannot be read automatically — please use the HTML save method. You can then adjust any value to explore hypothetical scenarios. This is an interim grade — it reflects only what has been submitted and graded so far.

🔒 Privacy: your grades file is read entirely within your browser. No information of any kind leaves your computer.

Additional Terms · contact: abedon.1@osu.edu

🏫 Choose Your Class

Select your class below to enable the Calculator and Grades tabs. You must use Carmen in a web browser (not the Canvas app) to save your grades file.

After choosing your class, these tabs unlock:

📄 How To — Step-by-step instructions for saving your Carmen grades page and uploading it here. Start here if this is your first time.

✨ Calculator — Upload your Carmen grades file (or enter percentages manually) to get your corrected current grade. Carmen cannot calculate your grade correctly when extra credit is involved — this tab fixes that.

📊 Grades — The most useful tab. Shows every individual quiz, exam, and assignment with your score. Missing and zero grades are highlighted in red so you can see exactly what you still need to do. You can type in hypothetical future scores and watch your grade recalculate live — great for planning what you need on upcoming assessments. Requires uploading your Carmen grades file on the Calculator tab first. Does not load if you enter your Carmen summary grades (bottom of your grades page) manually.

📖 Explanation — Details on how the grade calculation works for your class, including how extra credit and dropped quiz grades are handled.

🔒 Please select your class on the Class tab first to unlock the Calculator.

📄 Upload Your Carmen Grades Page

Save your Carmen grades page as an HTML file (see the How To tab for instructions), then drop it below. Your grades will be filled in automatically. Or use Manual Entry mode below if you prefer to type in your category percentages.

📄

Drop your Carmen grades file here

or click to browse · HTML recommended (File → Save Page As → Webpage, Complete)

PDF from Carmen Print-to-PDF cannot be read automatically — use HTML if possible

🔒 Your file is read entirely within your browser. No data leaves your computer.

✨ Enter or Adjust Your Grades

These fields are filled automatically when you upload your grades file. You can edit any value to explore hypothetical scenarios, or enter grades manually below. Leave a field blank to exclude that category from the calculation.

📊 View the Grades tab for a full breakdown of every assignment with missing grades highlighted in red.

✎ No file uploaded yet — manual entry mode.

To enter grades manually: scroll to the very bottom of your Carmen grades page in a web browser. You will see a summary table listing each grade category with a percentage score. Enter those Carmen percentage values (e.g., 91.45) into the fields below — not raw point totals.

Or drop your saved Carmen HTML file above to fill everything in automatically and unlock the full Grades tab.

This is an interim grade based only on categories with grades entered above. Blank fields are excluded from the calculation. Calculated grades are not guaranteed to match your final official grade.

▶ Already know how to do this? Go directly to the Calculator tab.

📄 How to Save Your Carmen Grades Page

Carmen cannot correctly calculate your grade in courses with extra credit categories. Use this calculator instead. First, select your class on the Class tab. Then save your Carmen grades page as a file and drop it into the Calculator tab. Here is how to do that on different browsers and devices.

🔒 Privacy: Your file is read entirely within your browser. No data of any kind leaves your computer.

💻 On a Desktop or Laptop Computer (recommended)

Option A — Save as HTML (recommended):

Open Carmen in your web browser and go to your grades page for your course. Use a browser such as Chrome, Firefox, or Safari — not the Canvas app, which does not show the data this calculator needs.
In your browser menu, choose File → Save Page As… (or press Ctrl+S on Windows / Cmd+S on Mac).
In the save dialog, set the format to Webpage, Complete or Webpage, HTML Only (not PDF). Either should work, but Complete is more reliable on some browsers.
Save the file anywhere on your computer, then go to the Calculator tab and drop the file into the upload area, or click the upload area to browse for it.

Option B — Print to PDF:

Go to your Carmen grades page for your course in a web browser.
Choose File → Print… (or press Ctrl+P / Cmd+P).
Set the destination to Save as PDF (or “Microsoft Print to PDF” on Windows).
Click Save, then drop the PDF into the Calculator tab upload area.

⚠️ Note on Print-to-PDF: Some browsers use encoded fonts in their PDF output that cannot be read automatically. If the calculator cannot find your grades in a PDF, save as HTML instead (Option A).

📲 On a Phone or Tablet

Important: You must use Carmen in a web browser (Chrome, Safari, or Firefox) — not the Canvas app.

Saving an HTML file from a mobile browser is difficult. If you only have a phone or tablet, open Carmen in your mobile browser, scroll to the very bottom of your grades page, and enter your category percentages manually in the Calculator tab (see below).

🔍 Manual Entry: Finding Your Category Percentages

If you prefer to enter grades manually, scroll to the very bottom of your Carmen grades page in a web browser. You will see a summary table listing each grade category. Look for these rows and enter the percentage shown into the corresponding field, as located there in the second column. Leave any field blank if that category has no grades yet.

After selecting your class on the Class tab, the Calculator tab shows the correct fields with the Carmen category name underneath each label for easy matching.

For History / Pharmacy 3708:
Exams (20% × 2 = 40%) → Exams
LQc: In-class Lecture Quizzes (20%) → Lecture Quizzes
RPc: Final Research Presentation (20%) → Final Research Presentation
CPc: Class Participation (20%) → Class Participation
VQo: On-line Vocabulary Quizzes → Vocabulary Quizzes

For Microbiology 4000.2:
Exams Lec (600/1000 points) → Lecture Exams
LQc ave (150/1000 points) → Lecture Quizzes
Exams lab (120/1000 points) → Lab Exams
LPQc ave (60/1000 points) → Lab Prep Quizzes
Binomial (23.3/1000 points) → Binomial Quiz
Unknown Determination (46.7/1000 points) → Unknown Determination
VQo ave (50/1000 points) → Voluntary Quizzes

🔒 Please select your class on the Class tab first. The Explanation tab will then show details specific to your class.

📖 Why This Calculator Exists

Carmen cannot correctly calculate your overall course grade when grade categories involve extra credit — meaning the maximum possible points in a category exceeds its nominal contribution toward your total of 1000 points. Carmen does not handle this well, particularly for quizzes taken through the Carmen app, and as a result the percentage Carmen shows for your overall grade can be misleading.

This calculator corrects for those issues by using the raw category percentages that Carmen does report accurately, and applying the proper point weights for each category.

🔢 Microbiology 4000.2 — How the Grade Is Calculated

The Micro 4000.2 grade is based on 1000 total points. Several categories have extra credit built in. The lowest grade in each quiz category is automatically dropped by Carmen:

Lecture Exams — 600 / 1000 points. Grades are entered manually by the instructor and may exceed 100%, reflecting extra credit on individual exams. The Carmen percentage is used directly.

Lecture Quizzes — 150 / 1000 points. Each quiz is worth 133.36 points in Carmen rather than 100, so a perfect score on every quiz yields a Carmen category percentage above 100%. Extra credit thus is available going from quiz to quiz, but your total points toward the 1000-point total from lecture quizzes are capped at 150. Carmen drops the lowest quiz grade.

Lab Exams — 120 / 1000 points. Lab exams carry extra credit (Carmen maximum is 106.5 points per exam rather than 100), so the category percentage can exceed 100%.

Lab Prep Quizzes — 60 / 1000 points. These quizzes carry 5% extra credit (Carmen maximum is 105 points per quiz rather than 100), so the category percentage can exceed 100%. Carmen drops the lowest quiz grade.

Binomial Quiz — 23.3 / 1000 points. Scored out of 100%; no extra credit adjustment needed. Carmen drops the lowest quiz grade.

Unknown Determination — 46.7 / 1000 points. Scored out of 100%; no extra credit adjustment needed.

Voluntary Quizzes (out of class) ⭐ — up to 50 / 1000 points. This is pure extra credit added on top of your grade in all other categories. It is calculated separately after the weighted average of the other categories is determined. Carmen drops the lowest quiz grade.

📖 Why This Calculator Exists

Carmen cannot correctly calculate your overall course grade when grade categories involve extra credit — meaning the maximum possible points in a category exceeds its nominal contribution toward your total of 1000 points. Carmen does not handle this well, and as a result the percentage Carmen shows for your overall grade can be misleading.

🔢 History / Pharmacy 3708 — How the Grade Is Calculated

The Hist/Pharm 3708 grade is based on 1000 total points:

Exams — 400 / 1000 points. Two exams, each worth 200 points. Each exam score is the sum of the lecture material component (El) and the higher of the two vocabulary components (with or without word bank). Exam grades may exceed 100%. The Carmen percentage is used directly.

Lecture Quizzes — 200 / 1000 points. Each quiz is worth 150.03 points in Carmen. A score of 6/9ths of 150.03 (= 100.02 points) earns a full 100% for that quiz. Extra credit is thus available, but total points from lecture quizzes are capped at 200. Carmen drops the lowest quiz grade.

Final Research Presentation — 200 / 1000 points. Scored out of 100%. If this grade has not yet been entered, the other categories are scaled proportionally so that an interim grade can still be calculated.

Class Participation — 200 / 1000 points. Average of two participation grades (pre-presentations and during presentations), each out of 100%.

Voluntary Quizzes (online) ⭐ — up to 50 / 1000 points. Pure extra credit added on top of your grade in all other categories. Carmen drops the lowest quiz grade.

📝 The Calculation

For all categories except Voluntary Quizzes, a weighted average is computed using only the categories that have grades entered. That weighted average is then normalized to account for however many categories have been graded so far, so the calculator gives a meaningful interim result even early in the semester. The Voluntary Quiz extra credit is then added on top of that normalized average.

Letter grades follow the standard OSU scale:

A = 93–100 • A− = 90–92.9 • B+ = 87–89.9 • B = 83–86.9 • B− = 80–82.9
C+ = 77–79.9 • C = 73–76.9 • C− = 70–72.9 • D+ = 67–69.9 • D = 60–66.9 • E = below 60

⚠️ Disclaimer: Calculated grades are estimates and are not guaranteed to match your final official grade. If you believe there is a discrepancy, please contact abedon.1@osu.edu.

🔒 The Grades ledger requires your Carmen grades file to be uploaded.

Go to the Calculator tab, drop your saved Carmen grades page (HTML file) into the upload area, and this tab will unlock automatically.

Manually typed grades do not unlock this tab — the file upload is needed so every individual assignment can be shown.