Rex says
Everyday utility math — the kind you'd otherwise pull up four browser tabs for. I keep it to one clean answer.
Try a scenario
Click to load — tweak from there.Inputs
Result
Course grade
88.00%
Letter
B+
Total weight (should = 100)
99.0
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How to use this
- 1Enter item 1 — score (%).
- 2Enter item 1 — weight (%).
- 3Enter item 2 — score (%).
- 4Enter item 2 — weight (%).
- 5Enter item 3 — score (%).
- 6Enter item 3 — weight (%).
- 7Enter item 4 — score (%).
- 8Enter item 4 — weight (%).
- 9Enter item 5 — score (%).
- 10Enter item 5 — weight (%).
- 11Enter item 6 — score (%).
- 12Enter item 6 — weight (%).
- 13Read your course grade on the right — it updates as you type.
- 14Hit Share to keep the scenario or send it to someone.
About this calculator
Enter up to six assignments — each with a percent score and weight (%) — to get your final course grade.
Worked example
Using the values the calculator loads with:
Inputs
- Item 1 — score (%): 88
- Item 1 — weight (%): 33
- Item 2 — score (%): 88
- Item 2 — weight (%): 33
- Item 3 — score (%): 88
- Item 3 — weight (%): 33
- Item 4 — score (%): 0
- Item 4 — weight (%): 0
- Item 5 — score (%): 0
- Item 5 — weight (%): 0
- Item 6 — score (%): 0
- Item 6 — weight (%): 0
Results
- Course grade: 88.00%
- Letter: B+
- Total weight (should = 100): 99
What each field means
Inputs
- Item 1 — score (%)
- The item 1 — score (%) used in the calculation. Starts at 88 so you have a working example on load. Accepted range: 0–200.
- Item 1 — weight (%)
- The item 1 — weight (%) used in the calculation. Starts at 33 so you have a working example on load. Accepted range: 0–100.
- Item 2 — score (%)
- The item 2 — score (%) used in the calculation. Starts at 88 so you have a working example on load. Accepted range: 0–200.
- Item 2 — weight (%)
- The item 2 — weight (%) used in the calculation. Starts at 33 so you have a working example on load. Accepted range: 0–100.
- Item 3 — score (%)
- The item 3 — score (%) used in the calculation. Starts at 88 so you have a working example on load. Accepted range: 0–200.
- Item 3 — weight (%)
- The item 3 — weight (%) used in the calculation. Starts at 33 so you have a working example on load. Accepted range: 0–100.
- Item 4 — score (%)
- The item 4 — score (%) used in the calculation. Starts at 0 so you have a working example on load. Accepted range: 0–200.
- Item 4 — weight (%)
- The item 4 — weight (%) used in the calculation. Starts at 0 so you have a working example on load. Accepted range: 0–100.
- Item 5 — score (%)
- The item 5 — score (%) used in the calculation. Starts at 0 so you have a working example on load. Accepted range: 0–200.
- Item 5 — weight (%)
- The item 5 — weight (%) used in the calculation. Starts at 0 so you have a working example on load. Accepted range: 0–100.
- Item 6 — score (%)
- The item 6 — score (%) used in the calculation. Starts at 0 so you have a working example on load. Accepted range: 0–200.
- Item 6 — weight (%)
- The item 6 — weight (%) used in the calculation. Starts at 0 so you have a working example on load. Accepted range: 0–100.
Results
- Course grade
- Returned as a percentage and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Letter
- Returned as a plain value. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Total weight (should = 100)
- Returned as a decimal number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
How does the grade calculator work?
Enter up to six assignments — each with a percent score and weight (%) — to get your final course grade.
What do I need to enter?
12 values: item 1 — score (%), item 1 — weight (%), item 2 — score (%), item 2 — weight (%), item 3 — score (%), item 3 — weight (%), item 4 — score (%), item 4 — weight (%), item 5 — score (%), item 5 — weight (%), item 6 — score (%), and item 6 — weight (%). Each field starts with a sensible default, so you can change one number at a time and watch the result move.
What does the course grade result mean?
It is returned as a percentage and updates live as you edit the inputs, so you can compare two or three versions of a scenario in a few seconds.
Is this calculator free, and do I need an account?
Yes, it's free, and no account is required. Nothing you type is stored on our servers — the maths runs entirely in your browser.
How accurate is the result?
It applies the standard formula exactly, so the arithmetic is precise. Estimates assume standard, average conditions — local rules, pricing, and materials vary.
Who is this tool for?
It's built for anyone doing everyday planning maths — a quick estimate that would otherwise need four browser tabs and a calculator app.
Accuracy and limitations
- Estimates assume standard, average conditions — local rules, pricing, and materials vary.
- Results are rounded for readability; add a buffer before ordering, booking, or committing.
- Double-check anything with a real cost attached against a local quote.
Related tools
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). Grade Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/grade
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/grade" target="_blank" rel="noopener">Grade Calculator — RevenueLab</a> (2026).</p>
Source: [Grade Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/grade) (2026).