Free Study Tools
31 calculators, rank predictors, and study planners — built for CBSE, ICSE, State Board, JEE, NEET, and entrance exam students. 100% free, no login required.
CGPA to Percentage Calculator
Convert CGPA to percentage with the ×9.5 CBSE formula, or 10-point and 4-point university scales. Instant results.
Most PopularMarks Percentage Calculator
Calculate percentage from marks obtained in any exam. Supports multiple subjects.
Quick ToolAge Calculator
Calculate exact age in years, months, and days. Useful for exam eligibility checks.
UtilityGPA Calculator
Calculate GPA from grades and credit hours. Supports 4.0 and 10.0 scales.
UniversityPercentage to CGPA Calculator
Convert percentage to CGPA. Divide by 9.5 for the CBSE formula, or use 10-point and 4-point university scales.
ConverterSGPA to CGPA Calculator
Convert semester-wise SGPA to cumulative CGPA. For engineering and university students.
UniversityGrade Calculator
Find your grade from percentage on the CBSE Class 9 and Class 11 scales or a typical university scale.
GradesWord & Character Counter
Count words, characters, sentences. Check board exam answer word limits.
WritingPomodoro Study Timer
25/5 minute focus timer. Stay concentrated during board and entrance exam preparation.
Study AidBoard Exam Countdown
Days left for CBSE, ICSE and state board exams, plus JEE Main, NEET, CUET and NDA — official dates flagged.
Board ExamsJEE Main Rank Predictor
Estimate your JEE Main rank from your percentile, using the latest NTA candidate count.
JEENEET Rank Predictor
Estimate your NEET rank from your marks, using NTA's official score counts.
NEETJEE Main College Predictor
See which NITs and branches your JEE Main rank would have got, from official JoSAA closing ranks.
JEENEET College Predictor
Check your NEET rank against MCC's official MBBS closing ranks at top government colleges.
NEETCUET Score Calculator
Calculate your CUET score with negative marking — 50 questions, out of 250 per test.
CUETCUET Normalised Score Calculator
Work out your exact CUET shift percentile with NTA's formula, and see how normalisation works.
CUETMHT-CET Rank Predictor
Predict your MHT-CET rank from percentile. Separate calculations for PCM and PCB groups.
MHT-CETKCET Rank Predictor
Predict your KCET rank from marks (out of 180), for Karnataka engineering and agriculture/pharmacy aspirants.
KCETWBJEE Rank Predictor
Predict your WBJEE rank from marks (out of 200). For West Bengal engineering aspirants.
WBJEEStudy Planner Generator
Generate a personalised weekly study timetable. Choose subjects, set hours, get an optimised schedule.
Study AidExam Syllabus Tracker
Track syllabus completion for CBSE, JEE, and NEET. Mark chapters done and see your progress.
Study AidScientific Calculator
Full scientific calculator with trigonometry, logarithms, powers, roots, and factorial. Degree and radian modes.
MathsQuadratic Equation Solver
Solve ax² + bx + c = 0 with step-by-step solution. Shows discriminant, roots, vertex, and nature of roots.
MathsChemical Equation Balancer
Balance any chemical equation instantly. Enter reactants and products to get correct coefficients.
ChemistryMolar Mass Calculator
Calculate molar mass of any compound from its chemical formula. Shows element-wise breakdown and percentage composition.
ChemistryMolarity Calculator
Calculate molarity, moles, or volume of a solution. Enter any two values to find the third.
ChemistryOhm's Law Calculator
Calculate voltage, current, resistance, or power using Ohm's Law. Enter any two values to get the rest.
PhysicsMatrix Calculator
Add, subtract, multiply matrices. Find determinant, transpose, and inverse. Supports 2×2 and 3×3.
MathsUnit Converter (Physics)
Convert between physics units: length, mass, force, energy, pressure, temperature, speed, and time.
PhysicsEMF Calculator
Calculate EMF, terminal voltage, internal resistance. Includes Nernst equation and series/parallel cells.
PhysicsLens & Mirror Calculator
Calculate focal length, image distance, magnification, and power for convex/concave lenses and mirrors.
Physics