Grade Calculator API
Single-course grade maths as an API, computed locally and deterministically — the everyday "what do I need on the final" student calculations. The needed endpoint works out the score required on the final exam (or any remaining component) to reach a target overall grade, from the current grade and the weight the final carries, and flags whether the target is achievable or already secured. The projected endpoint gives the overall grade you would finish with for a hypothetical final score. The average endpoint computes the weighted average of graded components from a simple score:weight list (such as 90:40,80:60), and reports the total and remaining weight so you can see how much of the course is still ungraded. Percentages run 0–100 and weights accept either a percentage (30) or a fraction (0.3). Everything is computed locally and deterministically, so it is instant and private. Ideal for student and study apps, learning-management tools, and tutoring and education sites. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is single-course grade mechanics; for a multi-course grade-point average from credit hours use a GPA API.
api.oanor.com/gradecalc-api
