Calculate the grade you need, convert test scores, plan your graduation year, and more — free, in your browser, no account required.
Page verified • Last updated: August 2026
NumCalcX has 7 education calculators for the math that comes up around grades and standardized tests — from figuring out what you need on a final exam to converting a raw test score into a scaled one. Every calculator below runs entirely client-side: nothing you type is sent to a server, and there's nothing to sign up for. Click any calculator to jump straight in.
Find the score you need on remaining work, compute a weighted average across assignments, or grade a single test.
→Convert raw section scores to the ACT's 1-36 scaled score and composite, using a commonly published reference conversion.
→Calculate your IELTS band score (0-9) for each section and your overall band score.
→Calculate your PTE Academic score on its 10-90 scale from communicative skill and enabling skill inputs.
→Estimate your AP exam score (1-5) from multiple-choice and free-response points, using a commonly published reference conversion.
→Estimate a graduation year from the current grade level and school year.
→Curve a set of test scores using common curving methods (linear and square-root) and compare the before/after distribution.
→Yes. Every calculator on NumCalcX runs entirely in your browser — no sign-up, no account, and no data sent to a server.
Use the Grade Calculator's Final Grade Needed mode — enter your current grade, how much of the course is already graded, and your target final grade.
They're reference approximations based on commonly published scoring patterns. Official scoring (especially for the ACT and AP exams) can vary by test date and year — always confirm against your official score report.