β Free Online Math Calculators
Solve equations, plot functions, work with matrices, fractions and primes, and compute areas and volumes. Every calculator runs instantly in your browser and accepts expressions such as 2*pi or sqrt(2)/3 in number fields.
No tools match your search.
- Scientific CalculatorFree online scientific calculator with trigonometry, logarithms, powers, roots, factorials, constants, degree/radian mode and calculation history.
- Graphing CalculatorPlot one or more functions of x online. Zoom with custom ranges, compare curves, and read values β a free graphing calculator in your browser.
- Quadratic Equation SolverSolve axΒ² + bx + c = 0 with real or complex roots, the discriminant and the vertex of the parabola.
- Polynomial Root FinderFind all real and complex roots of a polynomial of any degree from its coefficients (cubic, quartic, quintic and higher).
- System of Linear Equations SolverSolve systems of linear equations (2Γ2, 3Γ3, nΓn) with Gaussian elimination. Detects unique, infinite or no solutions.
- Matrix CalculatorMatrix calculator: determinant, inverse, transpose, rank, RREF, A+B, AβB and AΓB for matrices of any size.
- Percentage CalculatorCalculate X% of Y, what percent X is of Y, and the percentage increase or decrease from X to Y.
- Fraction CalculatorAdd, subtract, multiply, divide and simplify fractions exactly. Converts decimals to fractions and shows mixed numbers.
- GCD and LCM CalculatorFind the greatest common divisor (GCD/HCF) and least common multiple (LCM) of two or more integers of any size.
- Prime Factorization & Prime CheckerFactor any integer into primes, check whether a number is prime, and list its number and sum of divisors.
- Factorial, Permutations & CombinationsCalculate n!, permutations nPr and combinations nCr exactly with big integers β essential for probability and combinatorics.
- Logarithm CalculatorCompute the logarithm of a number in any base, plus natural log (ln), logββ and logβ.
- Exponent & Root CalculatorRaise a number to any power and calculate square, cube and n-th roots (including roots of negative numbers for odd n).
- Pythagorean Theorem CalculatorFind the missing side of a right triangle: enter any two of a, b and hypotenuse c.
- Triangle CalculatorSolve a triangle from its three sides: angles, area (Heron's formula), perimeter, heights, inradius, circumradius and triangle type.
- Circle CalculatorCalculate a circle's area, circumference and diameter from its radius.
- Sphere Volume & Surface AreaFree sphere volume & surface area calculator β instantly compute volume and surface area.
- Cylinder Volume & Surface AreaFree cylinder volume & surface area calculator β instantly compute volume and surface area.
- Cone Volume & Surface AreaFree cone volume & surface area calculator β instantly compute volume and surface area.
- CuboidFree cuboid (rectangular box) volume & surface area calculator β instantly compute volume and surface area.
- Distance, Midpoint & Slope CalculatorFind the distance, midpoint, slope and line equation between two points (xβ, yβ) and (xβ, yβ).
- Numerical Derivative CalculatorEvaluate the first and second derivative of any function f(x) at a point using high-accuracy finite differences.
- Definite Integral CalculatorNumerically compute the definite integral of f(x) from a to b using adaptive Simpson's rule.
- Equation SolverSolve any equation f(x) = 0 numerically on an interval β finds all sign-change roots with bisection and Brent-style refinement.
- Roman Numeral ConverterConvert numbers to Roman numerals and Roman numerals back to numbers (1β3999).
- Complex Number CalculatorAdd, subtract, multiply and divide complex numbers and get modulus, argument and polar form.
- Vector CalculatorDot product, cross product, magnitudes, angle and projection between two 2D or 3D vectors.
- Arithmetic & Geometric Sequence CalculatorFind the n-th term and the sum of the first n terms of arithmetic and geometric sequences.
- Trigonometric Functions CalculatorCompute sin, cos, tan, sec, csc and cot of an angle in degrees or radians, with conversion between units.
- Scientific Notation & Significant FiguresConvert numbers to scientific and engineering notation, count significant figures and round to any number of sig figs.