Math Tools
Calculators for equations, number theory, and scientific computing.
Scientific Calculator
Advanced calculator with trigonometry, logarithms, powers, and more.
GCD & LCM Calculator
Calculate the Greatest Common Divisor and Least Common Multiple of multiple numbers.
Quadratic Equation Solver
Solve quadratic equations ax² + bx + c = 0 with step-by-step solutions.
Statistics Calculator
Calculate mean, median, mode, standard deviation, variance, and more.
Fraction Calculator
Add, subtract, multiply, and divide fractions with step-by-step solutions.
Roman Numeral Converter
Convert between Arabic numbers and Roman numerals instantly.
Triangle Calculator
Solve any triangle given sides and angles (SSS, SAS, ASA, AAS). Get area and perimeter.
Prime Number Checker
Check if a number is prime and find all prime numbers up to a limit.
Combinations & Permutations
Calculate nCr (combinations) and nPr (permutations) with step-by-step solutions.
Prime Checker & Factorizer
Check if a number is prime and find its prime factorization.
Matrix Calculator
Add, multiply, transpose, and find the determinant of 2×2 and 3×3 matrices.
Number Sequence Generator
Generate arithmetic, geometric, Fibonacci, and prime number sequences.
Proportion Solver
Solve proportions and ratios — find the missing value in a/b = c/d.
Unit Price Calculator
Compare prices per unit to find the best deal between different package sizes.
Logarithm Calculator
Calculate logarithms in any base — natural log (ln), log base 10, or custom base.
Binary Calculator
Perform arithmetic and bitwise operations on binary, decimal, and hexadecimal numbers.
Vector Calculator
Calculate 2D and 3D vector addition, subtraction, dot product, cross product, and magnitude.
Geometry Calculator
Calculate area, perimeter, and volume of circles, rectangles, triangles, and more.
Ohm's Law Calculator
Calculate voltage, current, resistance, and power using Ohm's Law.
Percentile & Z-Score Calculator
Calculate percentile rank, Z-score, and normal distribution probability for a data set.
Complex Number Calculator
Perform arithmetic on complex numbers and convert between rectangular and polar form.
Polynomial Solver
Solve linear, quadratic, and cubic polynomial equations with step-by-step solutions.
Fibonacci Generator
Generate Fibonacci sequences by count or maximum value — with sum, golden ratio, and copy support.
Truth Table Generator
Enter a boolean expression using AND, OR, NOT, XOR and get a complete truth table.
Set Calculator
Compute union, intersection, difference, and symmetric difference of two sets.
Modular Arithmetic Calculator
Perform modular arithmetic: mod, inverse, Euler phi, and more.
Interpolation Calculator
Estimate values between known data points using linear or polynomial interpolation.
Confidence Interval Calculator
Calculate confidence intervals for means and proportions.
Chemical Equation Balancer
Balance chemical equations automatically.
Bitwise Calculator
Perform bitwise operations with binary visualization.
Z-Score Calculator
Calculate Z-scores, percentile ranks, and normal distribution probabilities.
Sample Size Calculator
Calculate the required sample size for surveys and research studies.
Standard Deviation Calculator
Calculate mean, variance, standard deviation, median, and mode. Supports both population and sample formulas.
Number Pattern Generator
Generate arithmetic, geometric, Fibonacci, prime, square, cube sequences. Custom formula support.
Digital Root Calculator
Calculate the digital root of any integer by repeatedly summing its digits. Shows step-by-step process and additive persistence.
Prime Sieve
Find all prime numbers up to a given limit using the Sieve of Eratosthenes. Visualize primes in a grid.
Collatz Sequence Visualizer
Visualize the Collatz conjecture sequence for any starting number.
Magic Square Generator
Generate magic squares of any odd size (3×3 to 11×11).
Factorial Calculator
Calculate factorials with step-by-step breakdown and large number support.
Unit Circle Reference
Interactive unit circle showing sin, cos, and tan values at standard angles.
Base-N Arithmetic
Perform arithmetic operations in any number base from 2 to 36.
Normal Distribution Calculator
Calculate probabilities and percentiles for the normal (Gaussian) distribution.
Golden Ratio Calculator
Calculate golden ratio dimensions — given one value, find the other for perfect φ proportions.
Binomial Distribution Calculator
Calculate binomial probabilities P(X=k), P(X≤k), and P(X≥k) for discrete events.
Linear Regression Calculator
Calculate linear regression from data points: slope, intercept, R², and predictions.
Probability Calculator
Calculate single event, compound (AND/OR), conditional, and at-least-one probabilities.
Euler's Number Calculator
Explore Euler's number e with Taylor series approximation, continuous compounding, and normal distribution.
Hyperbolic Functions Calculator
Calculate sinh, cosh, tanh, and inverse hyperbolic functions with identity verification.
Perfect Number Checker
Check if a number is perfect, deficient, or abundant. Find proper divisors and divisor sums.
Continued Fraction Calculator
Convert decimals or fractions to continued fraction notation with convergents.
Taylor Series Calculator
Compute Taylor/Maclaurin series approximation for common functions.
Number Palindrome Checker
Check if a number is a palindrome, find palindromes in a range, and discover interesting palindromic numbers.
Lissajous Curve Generator
Animate and explore Lissajous figures with interactive frequency and phase controls.
Bézier Curve Calculator
Interactive cubic Bézier curve calculator with draggable control points and curve length.
Roman Numeral Arithmetic
Perform addition, subtraction, multiplication, and division with Roman numerals.
Tribonacci Calculator
Generate the Tribonacci sequence and generalized variants with custom starting values.
Narcissistic Number Checker
Check if a number is narcissistic (Armstrong number) and find all narcissistic numbers up to a given limit.
Set Theory Calculator
Calculate set operations: union, intersection, difference, and complement.
Boolean Algebra Simplifier
Simplify boolean algebra expressions and generate truth tables.
Base Conversion Table
Convert any number to binary, octal, decimal, and hexadecimal simultaneously.
Summation Calculator
Compute Σ series sums — enter a mathematical expression and range to calculate the total.
Normal Distribution Calculator
Calculate probabilities and percentiles for the normal (Gaussian) distribution.
Coordinate Distance Calculator
Calculate Euclidean distance between two 2D or 3D coordinate points.