Discover how to estimate your performance with theJEE Main Score Calculator 2026 — an essential tool for engineering aspirants that helps calculate expected marks based on the official NTA marking scheme. This comprehensive guide explains how to enter correct and incorrect responses to get an instant score estimate, understand predicted percentile, and anticipate qualifying cut-offs. The JEE Main Score Calculator 2026 is useful for analysing performance, reducing calculation errors, and planning college admissions before official results are announced. Learn how to use it step-by-step and make informed decisions for your JEE Main journey.