Purpose and steps
Grade Calculator validates rows: earned, possible before applying the displayed equation. Every row has two columns: earned and possible points. Separate percentage weights are not supported.
- Combine test scores using total earned points divided by total possible points. Larger possible-point totals carry more weight; every possible-point total must be positive.
- Enter Rows: earned, possible in the stated format. Baseline values are for reproduction.
- Check the output unit and convention: Read grade with its stated unit and convention. The default example and the independent worked scenario use different inputs, so compare the assumptions before comparing the numbers.
- Change one input and compare the result. Every row has two columns: earned and possible points. Separate percentage weights are not supported. Extra-credit points above the stated possible total are not accepted in this version.
Input reference and units
These values reproduce the model’s demonstration. Replace them with your own records or measurements; they are not recommended targets.
On a small screen, swipe the table horizontally to see all columns.
| Parameter | Demonstration value | How to enter it |
|---|---|---|
| Rows: earned, possible | 18 20 45 50 | One item per line; match the columns in “Rows: earned, possible”. Do not include a header row. |
Model-specific method
How this calculator produces its result
Grade Calculator: grade = Σearned / Σpossible × 100. Input definitions: rows = Rows: earned, possible. Use the selected convention throughout the calculation.
Grade Calculator: calculation relationships
Combine test scores using total earned points divided by total possible points. Larger possible-point totals carry more weight; every possible-point total must be positive. Every row has two columns: earned and possible points. Separate percentage weights are not supported. Extra-credit points above the stated possible total are not accepted in this version.
Total-point grading weights assessments by their possible points. Scores 8/10 and 12/20 produce 20/30 = 66.666…%, whereas averaging 80% and 60% gives a different 70%. Use this tool when the gradebook adds earned and possible points, not when each assessment has an independent percentage weight.
grade = Σearned / Σpossible × 100
- rows: Rows: earned, possible. One item per line; match the columns in “Rows: earned, possible”. Do not include a header row.
- Result units: stated beside each output
- Calculation relationship: grade = Σearned / Σpossible × 100
- Supported domain: see the limits below
Worked example
Grade Calculator baseline input: Rows: earned, possible: 18 20 / 45 50. Output: Grade = 90 %; Points earned = 63; Points possible = 70. Substitute these values into the displayed equation to reproduce the result.
Reproduce the default scenario
This reproduces the default inputs in the reference table above; it is not an additional independent example. Displayed rounding may differ from intermediate precision.
- Grade
- 90%
- Points earned
- 63
- Points possible
- 70
Reading results without overstating them
- Read grade with its stated unit and convention. The default example and the independent worked scenario use different inputs, so compare the assumptions before comparing the numbers.
- Change one input at a time and use the equation to explain the result; do not mix unit, grade-scale, time-zone or rounding conventions across comparisons.
Assumptions and exclusions
- Every row has two columns: earned and possible points. Separate percentage weights are not supported.
- Extra-credit points above the stated possible total are not accepted in this version.
Sources and content notes
Toolify describes the implemented algorithm and its assumptions. Sources below support the topic or applicable rules; they do not endorse this calculator. Examples are illustrative, and published rules take precedence over simplified estimates.
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