Education calculators
Free education calculators: class grades and final exam scores, AP score predictors for seven exams, and NDA age eligibility for UPSC exams.
AP Statistics Score Calculator
Estimate your AP Statistics score (1–5) for the new May 2027 format: 42 multiple-choice questions and four 10-point free-response questions.
Age Calculator of NDA: NDA Age Limit & Eligibility
Check if you are eligible for NDA (I) or NDA (II) by date of birth. Shows the allowed birth-date window, your exact age and which exam cycles you can apply for.
AP US History Score Calculator (APUSH)
Estimate your AP US History score (1–5) from multiple choice, short answers, DBQ and LEQ points, weighted exactly like the College Board exam.
AP World History Score Calculator
Estimate your AP World History: Modern score from multiple choice, SAQ, DBQ and LEQ points, using the official section weights and 2026 score data.
AP Chemistry Score Calculator
Predict your AP Chemistry score from 60 multiple-choice answers and 7 free-response questions, weighted 50/50 as in the College Board exam.
AP Biology Score Calculator
Predict your AP Biology score from multiple choice and the six free-response questions, with official weights and the latest 2026 score distribution.
AP Physics 1 Score Calculator
Estimate your AP Physics 1 score from multiple choice and the four redesigned free-response questions, with 2027 format changes explained.
AP English Language Score Calculator
Estimate your AP English Language and Composition score from 45 multiple-choice answers and three essays scored 0–6, using official section weights.
Mechanical Advantage Calculator (IMA, AMA)
Calculate ideal and actual mechanical advantage and efficiency for levers, pulleys, wheel and axle, inclined planes, wedges and screws, with formulas.
Grade Calculator: Test Score, Weighted & Final
Turn a score like 22/30 into a percentage and letter grade, average weighted categories, and find what you need on the final exam.