Statistics Calculator
Calculate mean, median, mode, standard deviation, and more.
Quadratic Equation Solver
Solve quadratic equations and find real or complex roots.
Triangle Calculator
Calculate triangle sides, angles, area, and perimeter.
Probability Calculator
Calculate probability of single and combined events.
Permutation & Combination (nPr / nCr)
Calculate permutations and combinations for a set of items.
Prime Number Checker & Factorisation
Check if a number is prime and find its prime factorization.
Fraction Calculator
Add, subtract, multiply, and divide fractions with steps.
Matrix Calculator (2×2)
Perform matrix addition, multiplication, and find determinants.
Number Sequence Generator
Generate arithmetic, geometric, and Fibonacci number sequences.
Logarithm & Exponential Calculator
Calculate logarithms and exponential values in any base.
Standard Deviation Calculator
Calculate standard deviation and variance for a data set.
Percent Error Calculator
Calculate percent error between measured and true values.
Slope Calculator
Calculate the slope and equation of a line between two points.
LCM & GCF Calculator
Find the least common multiple and greatest common factor.
Prime Factorization Calculator
Break down any number into its prime factors.
Random Number Generator
Generate random numbers within a custom range.
Z-Score Calculator
Calculate the z-score for a value in a normal distribution.
Confidence Interval Calculator
Calculate confidence intervals for sample data.
Sample Size Calculator
Determine the sample size needed for statistical significance.
Rounding Calculator
Round numbers to a specified decimal place or significant figure.
Long Division Calculator
Perform long division with step-by-step working shown.
Number Base Converter
Convert numbers between binary, octal, decimal, and hex.
Circle Calculator
Calculate circle area, circumference, radius, and diameter.
Pythagorean Theorem Calculator
Calculate the hypotenuse or a leg of a right triangle.
Area Calculator
Calculate the area of common 2D shapes.