For Student Calculators
Math, physics, and study-friendly calculators for coursework and exam prep.
Eisenhower Matrix
Prioritize tasks into Do First, Schedule, Delegate, and Eliminate quadrants using the Eisenhower Decision Matrix.
Fraction Calculator
Add, subtract, multiply, and divide fractions.
Factorial Calculator
Calculate factorials, permutations, and combinations.
Circle Calculator
Calculate radius, diameter, circumference, and area of circles.
Right Triangle Calculator
Calculate sides, area, and perimeter using Pythagorean theorem.
Rectangle Calculator
Calculate area, perimeter, and diagonal of a rectangle.
Slope Calculator
Calculate slope between two points.
Cylinder Calculator
Calculate volume, surface area of a cylinder.
Sphere Calculator
Calculate volume and surface area of a sphere.
Cone Calculator
Calculate volume, surface area, and slant height of a cone.
Cube Calculator
Calculate volume, surface area, and diagonals of a cube.
Probability Calculator
Calculate simple, independent, and conditional probabilities.
Permutation Calculator
Calculate arrangements with or without repetition (nPr).
Combination Calculator
Calculate selections with or without repetition (nCr).
Odds Calculator
Convert between probability, decimal, and moneyline odds.
Expected Value Calculator
Calculate expected value (EV) for random variables.
Bayes Theorem Calculator
Calculate conditional probability P(A|B) using priors.
Binomial
Calculate success probabilities for binomial experiments.
Poisson
Calculate probabilities for rare events (Poisson).
Geometric
Calculate trials until first success.
Hypergeometric
Successes in draws w/o replacement.
Negative Binomial
Trials needed for r successes.
Normal Distribution
Calculate probabilities and Z-scores for normal curves.
Exponential
Calculate time between events.
Uniform
Probabilities for range [a, b].
Beta Distribution
Probability on interval [0, 1].
Gamma Distribution
Two-parameter continuous distribution.
Weibull
Reliability and failure analysis.
Log-Normal
Models positive skewed data.
Pareto
Power-law (80-20 rule) distribution.
Cauchy
Lorentz distribution (undefined mean).
Mean, Median, Mode
Calculate central tendency, range, and distribution stats.
Standard Deviation
Calculate SD, variance, and mean for population/sample.
Variance
Calculate variance and standard deviation for datasets.
Percentile
Calculate percentiles, quartiles, and IQR.
Correlation
Calculate Pearson correlation (r) and linear regression.
Confidence Interval
Calculate confidence intervals for means and proportions.
Sample Size
Determine required sample size for surveys and studies.
Margin of Error
Calculate margin of error for surveys and polls.
Standard Error
Calculate Standard Error of the Mean (SEM).
Z-Score
Calculate Z-score from raw value and vice versa.
Z-Test
Perform one-sample Z-test for known population SD.
T-Test
Perform one-sample T-test for unknown population SD.
Chi-Square
Perform Goodness of Fit and Independence tests.
ANOVA (One-Way)
Compare means of 3+ groups using F-test.
p-value
Calculate p-value from Z, t, Chi-Square, or F score.
Relative Risk
Calculate RR, Odds Ratio, and NNT.
Box & Whisker Plot
Visualize quartiles and outliers.
Frequency Distribution
Histogram and frequency table.
Stem & Leaf Plot
Distribution with original values.
Empirical Rule
68-95-99.7 rule ranges.
Speed & Velocity
Calculate speed, distance, and time.
Acceleration
Calculate change in velocity.
Kinematic Equations
SUVAT solver for motion.
Projectile Motion
Range, height, and trajectory.
Free Fall
Velocity and position under gravity.
Weight & Mass
Weight on different planets.
Friction
Static and kinetic friction.
Centripetal Force
Circular motion forces.
Torque
Rotational force (moment).
Kinetic Energy
Energy of motion.
Potential Energy
Gravitational potential energy.
Work
Force x Distance.
Power
Rate of doing work.
Hooke's Law
Spring force and energy.
Momentum
Mass in motion.
Density
Mass per unit volume.
Pressure
Force per unit area.
Simple Pendulum
Period of oscillation.
Universal Gravitation
Gravitational attraction.
Ohm's Law Calculator
Calculate Voltage, Current, Resistance, and Power.
Resistor Color Code
Decode 4, 5, or 6-band resistor color codes.
Horsepower Calculator
Calculate engine HP from torque, performance, or convert power units.
Molarity Calculator
Calculate molarity, mass, volume, and dilutions.
Concrete Calculator
Calculate concrete bags and cubic yards for slabs and footings.
Age Calculators Hub
Browse all age calculators: Korean age, birthday countdown, pet age, zodiac, and school admission tools.
School Admission Age Calculator
Check CBSE and ICSE school admission age eligibility by date of birth.
Planetary Age Calculator
See how old you would be on Mars, Jupiter, and other planets.
CGPA Calculators Hub
Complete CGPA, SGPA, and GPA calculator suite for Indian students — common tools and 20 university-specific calculators.
SGPA Calculator
Calculate semester GPA from subject grades and credits on the UGC 10-point scale.
CGPA Calculator
Compute cumulative CGPA from semester SGPAs and credits.
CGPA to Percentage Calculator
Convert CGPA to percentage using university-specific formulas for VTU, Anna, DU, AKTU, and more.
Percentage to CGPA Calculator
Reverse convert percentage marks to CGPA per university formula.
SGPA to CGPA Calculator
Merge a new semester SGPA into your existing cumulative CGPA.
VTU CGPA Calculator
Calculate SGPA, CGPA, and convert to percentage using VTU (Visvesvaraya Technological University) grading rules.
Anna University CGPA Calculator
Calculate SGPA, CGPA, and convert to percentage using Anna University grading rules.
DU CGPA Calculator
Calculate SGPA, CGPA, and convert to percentage using Delhi University grading rules.
MU CGPA Calculator
Calculate SGPA, CGPA, and convert to percentage using Mumbai University grading rules.
JNTUH CGPA Calculator
Calculate SGPA, CGPA, and convert to percentage using JNTU Hyderabad grading rules.
AKTU CGPA Calculator
Calculate SGPA, CGPA, and convert to percentage using AKTU (Dr. A.P.J. Abdul Kalam Technical University) grading rules.
GTU CGPA Calculator
Calculate SGPA, CGPA, and convert to percentage using GTU (Gujarat Technological University) grading rules.
KTU CGPA Calculator
Calculate SGPA, CGPA, and convert to percentage using KTU (APJ Abdul Kalam Technological University, Kerala) grading rules.
MAKAUT CGPA Calculator
Calculate SGPA, CGPA, and convert to percentage using MAKAUT (Maulana Abul Kalam Azad University of Technology) grading rules.
CBSE CGPA Calculator
Convert CBSE CGPA to percentage for Class 10 and Class 12 using the × 9.5 rule.
SPPU CGPA Calculator
Calculate SGPA, CGPA, and convert to percentage using SPPU (Savitribai Phule Pune University) grading rules.
RGPV CGPA Calculator
Calculate SGPA, CGPA, and convert to percentage using RGPV (Rajiv Gandhi Proudyogiki Vishwavidyalaya) grading rules.
Calcutta University CGPA Calculator
Calculate SGPA, CGPA, and convert to percentage using Calcutta University grading rules.
VIT CGPA Calculator
Calculate SGPA, CGPA, and convert to percentage using VIT Vellore grading rules.
SRM CGPA Calculator
Calculate SGPA, CGPA, and convert to percentage using SRM University grading rules.
BITS CGPA Calculator
Calculate GPA on the 4-point BITS scale and convert to percentage.
IGNOU CGPA Calculator
Calculate SGPA, CGPA, and convert to percentage using IGNOU grading rules.
Osmania University CGPA Calculator
Calculate SGPA, CGPA, and convert to percentage using Osmania University grading rules.
Bangalore University CGPA Calculator
Calculate SGPA, CGPA, and convert to percentage using Bangalore University grading rules.
JNTUK CGPA Calculator
Calculate SGPA, CGPA, and convert to percentage using JNTU Kakinada grading rules.
Cutoff Calculators Hub
Tamil Nadu engineering, medical, agriculture, and veterinary cutoff calculators plus JEE and GATE tools.
TNEA Engineering Calculator
Calculate your Tamil Nadu Engineering Admissions (TNEA) cutoff out of 200 using Class 12 Maths, Physics, and Chemistry marks.
TN Medical Bio-Maths Calculator
Calculate Tamil Nadu medical cutoff for Bio-Maths group students using Biology, Physics, and Chemistry marks.
TN Medical Pure Science Calculator
Calculate Tamil Nadu medical cutoff for Pure Science group students using Botany, Zoology, Physics, and Chemistry marks.
TNAU Agriculture Calculator
Calculate Tamil Nadu Agricultural University (TNAU) cutoff using Biology, Mathematics, Chemistry, and Physics marks.
TANUVAS Veterinary Calculator
Calculate TANUVAS B.V.Sc admission cutoff using Biology, Physics, and Chemistry marks out of 100.
NEET Qualifying Cutoff Checker
Check if your NEET UG score meets the NTA qualifying percentile threshold for your category. This is not a college predictor.
JEE Main Marks Calculator
Calculate your JEE Main raw score from correct and wrong answers using the official NTA marking scheme (+4/−1/0).
JEE Main Percentile to Rank
Estimate your JEE Main All India Rank (AIR) from your NTA percentile score using the standard rank derivation formula.
GATE Score Calculator
Calculate your GATE score (350–900) from raw marks using the official IIT normalization formula.