Calculator for Grading
Rainer Lang v1.0.0
Grade, GPA and test scores
From the developer
Declared capabilities
- Calculate a test percent and letter grade from the number wrong, and how many more answers reach the next letter
- Work out the score needed on a final exam to reach a target grade
- Average weighted categories and show what the open part must score for a target
Cost & access
The app sells nothing and processes no payments inside ChatGPT. It is free, shows no prices and links only to the free calculators and the grading-scale page on calculatorforgrading.com.
Declared limitations
- Request for a named student's grades. The app only does arithmetic on numbers the user supplies and has no student records. Expected: no tool call for a lookup; the model explains it cannot look up a person's grades and offers to calculate from numbers the user gives (without names).
- A grading system the app does not have (Finnish 4-10 scale). Expected: the app does not invent cut-offs; either no tool call, or an error / answer limited to the supported scales (10-point, 7-point, plus-minus, pass-fail, or the user's own cut-offs).
- Unrelated request. Nothing to do with grades or scores, so none of the six tools should be called and no Calculator for Grading content should be added.
Onboarding example
I got 7 wrong out of 40, what's my grade?
Sources & dates
Developer declarations; not independently tested. Listing last checked Nov 11, 2026. Package observed Nov 11, 2026.
Description
From the marketplace listing
Work out a grade in seconds. Tell the app how many questions were wrong and get the percent and letter grade on the 10-point, 7-point, plus-minus or your own scale, and how many more correct answers reach the next letter. Ask what you need on your final to get a B or an A, average weighted categories such as homework, tests and the final, and calculate high school GPA (honors and AP weighting) or college GPA from letters and credits. Convert correct answers on College Board SAT and ACT practice tests and section scores on the MCAT into scores and percentiles, each with its source table and date. Look up grading-scale cut-offs with the named sources. The math is the same as on calculatorforgrading.com, and every answer links to the matching calculator with your numbers filled in. Results are estimates for practice and planning, not official grades or scores. The app asks for numbers only: no names, student IDs or school names, and nothing is stored.
Language: English · Automatically detected from descriptions.
Changes
No changes recorded yet. Follow this plugin to keep track of future changes.
First seen Nov 11, 2026. Last seen Nov 11, 2026.
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Keywords
Files & skills
File archives
Release notes
1.0.0 - First version. Six read-only tools on https://calculatorforgrading.com/mcp: grade_calculator (percent and letter from questions wrong or correct on the 10-point, 7-point, plus-minus or pass-fail scale or custom cut-offs, correct answers needed for the next letter, optional chart), final_grade_needed (score needed on a final for a target grade, percent or points mode), weighted_grade (weighted average of categories, what the open part must score), gpa_calculator (high school weighted and unweighted, college, 4.0 or 4.3 scale), test_score_calculator (SAT practice tests 4-11, ACT practice tests, MCAT section scores to total and percentile, each with source and fetch date) and grading_scale_facts (cut-offs with named sources and check date). English. No sign-in, no personal data, nothing stored.
Declared in the saved package. Remote tools may change independently.
Package details
Publisher declarations from the archived package. These are separate from our research and the live service's terms.
- Package author
- Rainer Lang
- Keywords
- See keywords
- Declared availability
- No country restrictions declaredDeclared regions; live availability may differ.
- Commerce declaration
- Does not support commerceThis does not establish whether access is free or paid.
- Review scenarios
- 5 positive · 3 negativeScenario counts, not test results.
Declared capabilities
- Calculate a test percent and letter grade from the number wrong, and how many more answers reach the next letter
- Work out the score needed on a final exam to reach a target grade
- Average weighted categories and show what the open part must score for a target
- Calculate high school (weighted) or college GPA from letters, credits and course level
- Convert SAT, ACT and MCAT practice-test answers and section scores, with source and date
- Show grading-scale cut-offs (10-point, 7-point, plus-minus, College Board) with named sources
Package observed Nov 11, 2026.
Technical details
- First seen
- Nov 11, 2026 · 12:00 UTC
- Last seen
- Nov 11, 2026 · 18:00 UTC
- Collection status
- Collected
plugin_asdk_app_6ac99bc7166c8191a95e256655016925
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