Fraction Calculator
Add, subtract, multiply, and divide fractions. Shows simplified results with step-by-step working.
Average Calculator
Calculate mean, median, mode, and range from a list of numbers. Paste or type numbers separated by commas.
GCD & LCM Calculator
Find the Greatest Common Divisor (GCD) and Least Common Multiple (LCM) of two or more numbers.
Quadratic Equation Solver
Solve ax² + bx + c = 0. Shows discriminant, real or complex roots, and vertex of the parabola.
Pythagorean Theorem Calculator
Find any side of a right triangle using the Pythagorean theorem a² + b² = c². Enter any two sides.
Scientific Notation Calculator
Convert numbers to and from scientific notation. Also perform arithmetic on numbers in scientific notation.
Binary Calculator
Convert between binary, decimal, octal, and hexadecimal number systems instantly.
Exponent Calculator
Calculate base raised to a power (b^n). Supports integers, decimals, and negative exponents.
Square Root Calculator
Calculate square roots, cube roots, and any nth root of a number with high precision.
Ratio Calculator
Solve proportions and find missing values. If a:b = c:d, enter any three to find the fourth.
Prime Number Checker
Check if a number is prime and find all its factors. Also shows prime factorization.
Factorial Calculator
Calculate n! (factorial) for any non-negative integer. Shows the full expansion and result.
Standard Deviation Calculator
Calculate population and sample standard deviation, variance, and other statistics from a data set.
Probability Calculator
Calculate basic probability, permutations (nPr), and combinations (nCr) with step-by-step formulas.
Matrix Calculator
Add, multiply, and find determinants of 2×2 and 3×3 matrices with step-by-step results.
Area Calculator
Calculate the area of rectangles, circles, triangles, and trapezoids with formulas shown.
Volume Calculator
Calculate volume of cubes, spheres, cylinders, and cones with formulas and surface area.
Roman Numeral Converter
Convert between Roman numerals and decimal numbers. Supports values from 1 to 3,999.
Function Plotter
Plot mathematical functions like sin(x), x^2, or log(x) on an interactive canvas graph with zoom and pan.