Calculators

Statistics, algebra, geometry, number theory, and finance calculators.

281 ready-to-use tools

Calculators

32 tools

Percentage CalculatorCalculate a percentage of a number or find what percentage one value represents of another.

Percentage Change CalculatorCalculate the percentage increase or decrease from an original value to a new value.

Ratio SimplifierReduce the ratio of two integers to its simplest form by dividing both sides by their greatest common divisor.

Fraction SimplifierReduce an integer fraction and display its decimal value and mixed-number representation.

Descriptive Statistics CalculatorCalculate count, sum, mean, median, mode, minimum, and maximum for a list of numerical observations.

Standard Deviation CalculatorCalculate population and sample variance and standard deviation from a list of numbers.

Quartile CalculatorCalculate the minimum, first quartile, median, third quartile, and maximum of a numerical dataset.

Permutation and Combination CalculatorCalculate exact integer values for permutations nPr and combinations nCr from n and r.

Prime Checker and FactorizationCheck whether an integer is prime and display its prime factorization.

GCD and LCM CalculatorFind the greatest common divisor and least common multiple of two or more integers.

Modulo CalculatorCalculate remainders, normalized modulo values, and modular exponentiation for integer inputs.

Quadratic Equation SolverSolve ax² + bx + c = 0 from its coefficients and display real or complex roots.

Two-Variable Linear Equation SolverSolve a system of two linear equations in two unknowns using the supplied coefficients and constants.

2×2 Matrix CalculatorCalculate determinants, inverses, sums, and products of two-by-two matrices.

2D Vector CalculatorCalculate vector lengths, addition, dot products, angles, and the scalar cross product of two-dimensional vectors.

Complex Number CalculatorAdd, subtract, multiply, or divide two complex numbers entered as real and imaginary parts.

Roman Numeral ConverterConvert positive integers to standard Roman numerals or convert valid Roman numeral text to decimal integers.

Scientific Notation ConverterConvert a number between ordinary decimal display and scientific notation with configurable significant digits.

Bitwise CalculatorCalculate AND, OR, XOR, NOT, and bit shifts for numerical inputs and inspect the resulting values.

IEEE 754 Floating-Point InspectorInspect the sign, exponent, and mantissa bits of 32-bit and 64-bit IEEE 754 floating-point numbers.

Significant Figures CalculatorRound a number to a selected number of significant figures and inspect the resulting representation.

Arithmetic and Geometric Sequence GeneratorGenerate arithmetic or geometric sequences from initial values and steps or ratios, and calculate their sums.

Fibonacci Sequence GeneratorGenerate a chosen number of Fibonacci terms or look up the value of a specified term.

Circle CalculatorCalculate a circle's diameter, circumference, and area from its radius.

Triangle CalculatorCheck whether three side lengths form a triangle and calculate its perimeter and area.

Rectangle CalculatorCalculate a rectangle's area, perimeter, and diagonal from its width and height.

Regular Polygon CalculatorCalculate the perimeter and area of a regular polygon from its number of sides and side length.

Coordinate Distance CalculatorCalculate Euclidean distance, Manhattan distance, and the midpoint between two coordinate pairs.

Line Slope CalculatorFind the slope, intercept, and equation of a straight line through two points.

Compound Interest CalculatorEstimate a future balance from principal, fixed interest rate, duration, and compounding frequency.

Fixed-Rate Loan Payment CalculatorEstimate equal monthly payments, total interest, and total repayment for a fixed-rate amortizing loan.

Discount CalculatorCalculate a discounted price, the amount saved, and the effective discount percentage.