Grade needed on a final, weighted grades, GPA, percent to letter, curves, percentile rank, reading plans and study time.
payments ON MAINNET (real money) · 8 live endpoints
| Endpoint | Price | What it answers |
|---|---|---|
GET /final-grade-needed | $0.02 | Score needed on a final exam (or any remaining work) to reach a target class grade, from current grade and its weight. |
GET /gpa | $0.02 | GPA on the 4.0 scale from letter grades and credits, with optional honors (+0.5) and AP/IB (+1.0) weighting. |
GET /grade-curve | $0.02 | Curve test scores by adding points, scaling so the top score is 100, or the square-root method, with before and after averages. |
GET /percent-to-letter | $0.02 | Letter grade and 4.0 GPA points for a percentage on the common US scale, with plus/minus, and points to the next grade. |
GET /percentile-rank | $0.02 | Percentile rank of a score in a class list (mean-rank method), with rank from the top, mean, median and z-score. |
GET /reading-planner | $0.02 | Pages per day to finish a reading assignment by the due date, daily minutes at your pace, and a day-by-day page schedule. |
GET /study-time | $0.02 | Weekly study hours from credit hours using the 2 to 3 hours per credit rule, with total weekly workload and a daily plan. |
GET /weighted-grade | $0.02 | Overall class grade from categories or assignments with scores, maximums and weights, normalizing weights that do not total 100. |
GET /catalog returns this list as JSON. Activity hub · uptime.
Grade arithmetic computed locally from the numbers given, using common US conventions (10-point letter scale, 4.0 GPA scale), provided as is. Schools and teachers differ in scales, weights, rounding, plus/minus grades and honors weighting, so always check your syllabus and your school's published policy. Not an official transcript or an academic decision. Every paid response carries a disclaimer field.