ganak.appAcademic Calculators
12 calculators · Updated Apr 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
Free GPA calculator on a 4.0 scale with letter grades and credit hours. Includes GPA planner and weighted GPA support for Honors, AP, and IB courses.
CGPA Calculator
Free CGPA calculator from semester-wise SGPAs and credits. Supports 10-point, 4.0, and 5.0 scales. Converts to percentage with semester breakdown and trends.
Negative Marking Calculator
Calculate exam scores with negative marking for GATE, JEE, NEET, UPSC, and banking tests. Get net score, accuracy, and penalty with custom marking schemes.
All Academic Calculators
CGPA to Percentage Calculator
Convert CGPA to percentage using 10-point, 4.0, or 5-point scales. Supports AICTE (9.5), custom multipliers, and more. Formula: Percentage = CGPA × factor.
Percentage to CGPA Calculator
Convert percentage to CGPA using 10-point, 4.0, or 5-point scales. Supports custom conversion factors for universities. Formula: CGPA = Percentage / factor.
Grade Calculator
Calculate your weighted grade average, find what you need on your final exam, or convert test scores to letter grades. Supports US letter grades and GPA.
SGPA to CGPA Calculator
Free SGPA to CGPA converter. Supports simple average and credit-weighted methods across 10-point, 4.0, and 5.0 scales with percentage and trend chart.
Attendance Calculator
Free attendance calculator. Find your attendance %, classes needed to reach 75% (or any target), and how many you can safely miss. Track by classes or days.
SAT Score Calculator
Convert Digital SAT raw scores to estimated scaled scores (400-1600). Enter correct answers for Reading & Writing and Math for predicted score and percentile.
PSAT Score Calculator
Estimate Digital PSAT scaled scores from raw correct answers for PSAT/NMSQT, PSAT 10, and PSAT 8/9. Selection Index, National Merit cutoffs, SAT equivalent, and percentiles.
AustraliaATAR Calculator
Free VCE ATAR calculator with approximate subject scaling. Enter your study scores to estimate your Australian Tertiary Admission Rank, view aggregate breakdown, and check university entry benchmarks. Rough estimates also available for HSC, QCE, WACE, and SACE.
ACT Score Calculator
Free ACT score calculator for the Enhanced ACT (2025+). Convert raw scores to scaled scores (1-36) for English, Math, and Reading. Composite score, percentiles, and college benchmarks. Legacy ACT mode included.
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.