Math & numeric tools
Matrices, equations, calculus, number theory, converters and geometry — computed exactly where possible.
Most popular
3D Solid Geometry Calculator
Volume and surface area of spheres, cones, prisms and more.
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Circle Calculator
Radius, circumference, area, arcs, sectors and chords.
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Coordinate Geometry Toolkit
Distance, midpoint, slope, line intersections and circles.
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Derivative & Integral Calculator
Symbolic derivatives, antiderivatives and exact definite integrals.
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Derivative Calculator with Steps
Differentiate any function with every rule shown: power, product, quotient and chain rule, step by step.
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Equation Solver
Polynomial roots and linear systems A·x = b.
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Exponent & Logarithm Calculator
Logarithms to any base, exponential equations and nth roots.
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Function Analyzer & Grapher
Zeros, extrema, inflection points and asymptotes, with graphs.
popular
Inverse Symbolic Calculator
Paste a decimal, get its closed form: 1.6449340668 → π²/6. Also names integer sequences.
popular
Limit Calculator
Limits at a point or infinity, one-sided or two-sided.
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Matrix Calculator
Determinant, inverse, rank, RREF and eigenvalues.
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Number Base Converter
Binary, octal, decimal, hex and any base from 2 to 36.
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Percentage & Ratio Calculator
Percent of, percent change, ratios and proportions.
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Prime Factorization & Number Theory
Prime factors, divisors, GCD/LCM and modular arithmetic.
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Quadratic Equation Solver
Exact roots, discriminant, vertex and factored form.
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RREF Calculator with Steps
Row-reduce any matrix with every row operation shown: RREF, row echelon form, the inverse and the determinant.
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Right Triangle Calculator
Pythagoras plus angles, area and trig ratios from two values.
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Scientific Notation & Significant Figures
Convert to scientific and engineering notation, round to sig figs.
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Sequence Calculator
Arithmetic, geometric and Fibonacci: nth term and sums.
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Step-by-Step Algebra Solver
Solve equations, inequalities and systems with every step shown — or expand, factor and simplify with the work written out.
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Triangle Solver
All sides, angles and the area from SSS, SAS, ASA or SSA.
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Truth Table Generator
Full truth tables plus DNF/CNF simplification.
Everyday Math
Algebra & Calculus
Equation Solver
Polynomial roots and linear systems A·x = b.
popular
Exponent & Logarithm Calculator
Logarithms to any base, exponential equations and nth roots.
popular
Matrix Calculator
Determinant, inverse, rank, RREF and eigenvalues.
popular
Quadratic Equation Solver
Exact roots, discriminant, vertex and factored form.
popular
RREF Calculator with Steps
Row-reduce any matrix with every row operation shown: RREF, row echelon form, the inverse and the determinant.
popular
Sequence Calculator
Arithmetic, geometric and Fibonacci: nth term and sums.
popular
Step-by-Step Algebra Solver
Solve equations, inequalities and systems with every step shown — or expand, factor and simplify with the work written out.
Complex Number Calculator
Arithmetic, polar form and nth roots on the complex plane.
Inequality Solver
Polynomial and rational inequalities in interval notation.
Polynomial Toolkit
Factor, expand and divide polynomials with remainder.
Radical Simplifier
Simplify roots exactly: √72 → 6√2, rationalize denominators.
Vector Calculator
Dot and cross products, angle, projection and area.
Matrix Decompositions
LU, QR, SVD and eigendecomposition of any matrix.
Partial Fraction Decomposition
Split a rational expression into simple fractions.
Calculus & Analysis
Derivative & Integral Calculator
Symbolic derivatives, antiderivatives and exact definite integrals.
popular
Derivative Calculator with Steps
Differentiate any function with every rule shown: power, product, quotient and chain rule, step by step.
popular
Function Analyzer & Grapher
Zeros, extrema, inflection points and asymptotes, with graphs.
popular
Limit Calculator
Limits at a point or infinity, one-sided or two-sided.
Differential Equation Solver
Symbolic solutions of first and second order ODEs.
Interpolation Calculator
Linear or cubic-spline interpolation through data points.
Numerical Integrator
∫f(x)dx on [a, b] by adaptive quadrature, Simpson or trapezoid.
Taylor & Maclaurin Series
Series expansion around any point, with coefficients.
Gradient & Hessian Calculator
Multivariable derivatives: ∇f, Hessian and stationarity check.
Riemann Sum Calculator
Left, right, midpoint and trapezoid sums vs the true integral.
Numbers & Arithmetic
Inverse Symbolic Calculator
Paste a decimal, get its closed form: 1.6449340668 → π²/6. Also names integer sequences.
popular
Number Base Converter
Binary, octal, decimal, hex and any base from 2 to 36.
popular
Prime Factorization & Number Theory
Prime factors, divisors, GCD/LCM and modular arithmetic.
popular
Scientific Notation & Significant Figures
Convert to scientific and engineering notation, round to sig figs.
Big Number Calculator
Exact arithmetic with thousands of digits: +, −, ×, ÷, ^, fact().
Fraction ↔ Decimal ↔ Continued Fraction
Exact conversions with repeating decimals and convergents.
Roman Numeral Converter
Numbers to Roman numerals and back, with validation.
Combinatorics: nCr, nPr & Stirling Numbers
Exact counts for combinations, permutations, Stirling and Bell numbers.
Discrete & Logic
Truth Table Generator
Full truth tables plus DNF/CNF simplification.
Prime Number Tools
Primality tests, the nth prime, prime ranges and π(x).
Set Calculator
Union, intersection, differences and power sets.
Base-N Arithmetic
Add, subtract, multiply and divide directly in any base.
Congruence Solver (CRT)
Linear congruences and Chinese Remainder Theorem systems.
Linear Diophantine Equations
Integer solutions of ax + by = c with the general formula.
Geometry
3D Solid Geometry Calculator
Volume and surface area of spheres, cones, prisms and more.
popular
Circle Calculator
Radius, circumference, area, arcs, sectors and chords.
popular
Coordinate Geometry Toolkit
Distance, midpoint, slope, line intersections and circles.
popular
Right Triangle Calculator
Pythagoras plus angles, area and trig ratios from two values.
popular
Triangle Solver
All sides, angles and the area from SSS, SAS, ASA or SSA.
Polygon Area Calculator
Area, perimeter and centroid from vertex coordinates.
Regular Polygon Calculator
Area, apothem, radii and angles of any regular n-gon.
Trigonometry Calculator
All six trig functions, exact special values and inverses.
Game Theory & Puzzles
About these tools
Math calculators from school level to university: fractions, percentages, quadratic and linear equations, derivatives and integrals, matrices, geometry, number theory and unit-aware expression evaluation. Solutions are shown step by step where possible, so the tools double as learning aids rather than just answer machines.