ganak.appAcademic Calculators
13 calculators · Updated Jun 2026
Calculate grades, GPA, CGPA, and attendance for school and university. Includes tools for negative marking analysis in competitive exams and SGPA-to-CGPA conversion.
Popular in Academic
GPA Calculator
Calculate college or high school GPA from letter grades and credits. See weighted, unweighted, semester, and cumulative GPA with formulas and examples.
CGPA Calculator
Free CGPA calculator: semester-wise weighted, simple average, CGPA to percentage, and percentage to CGPA. Supports 10-point, 4.0, and 5.0 scales with custom conversion factors.
Negative Marking Calculator
Calculate exam scores with negative marking. Enter correct and wrong answers for 1/3, 1/4, NEET +4/-1, UPSC +2/-0.66, and custom patterns. Get net score, accuracy, and penalty instantly.
All Academic Calculators
CGPA to Percentage Calculator
Convert CGPA to percentage using the standard 9.5 factor, 10-point, 4.0, 5.0, 4.33, or 7-point scales. Custom conversion factor support for any university grading system.
Percentage to CGPA Calculator
Convert percentage to CGPA on 10-point, 4.0, 5.0, 4.33, or 7-point grading scales. Custom conversion factor support for any institution's formula. Reverse GPA calculation.
Grade Calculator
Free grade calculator for weighted averages, points, final exam scores, and test grades. Get letter grades and GPA equivalents instantly.
SGPA to CGPA Calculator
Calculate CGPA from SGPA using simple average or credit-weighted formula. Add semesters, credits, grading scale, and see percentage with steps.
Attendance Calculator
Free attendance calculator and attendance percentage calculator. Find your attendance %, see how many classes you need to reach 75% (or any target), and know exactly how many classes you can miss. Track by classes or days.
SAT Score Calculator
Estimate your Digital SAT score from Reading & Writing and Math correct answers. Convert raw scores to scaled SAT scores, see percentiles, benchmarks, and scoring guidance.
PSAT Score Calculator
Calculate your estimated PSAT/NMSQT, PSAT 10, or PSAT 8/9 score from raw answers. See section scores, percentiles, SAT estimate, and (for PSAT/NMSQT) National Merit Selection Index.
AustraliaATAR Calculator
VCE ATAR calculator with approximate subject scaling based on VTAC patterns. Enter study scores to estimate your Australian Tertiary Admission Rank, view aggregate breakdown with English-compulsory formula, and check university entry benchmarks. Rough estimates for HSC, QCE, WACE, and SACE.
ACT Score Calculator
Free ACT Score Calculator for the Enhanced ACT 2026. Convert raw answers to scaled scores (1-36), get your composite score, and see college benchmarks.
Grade Curve Calculator
Calculate a curved grade from your raw score using flat bonus, linear scaling, square root, bell curve, or percentage boost. Compare methods and see your new letter grade.
Why Use Academic Calculators?
Academic calculations affect your career trajectory — knowing your exact GPA, understanding how negative marking works in competitive exams, or tracking attendance to meet minimum requirements. These calculators support multiple grading scales and provide the precision students need for applications, scholarships, and academic planning.