Mathematics Calculators
Math is the language of every other calculator on this site. The math tools here give you a fast, private way to solve percentages, fractions, algebra, geo...
102 calculators available · Updated 2026-06-15
Math is the language of every other calculator on this site. The math tools here give you a fast, private way to solve percentages, fractions, algebra, geometry, statistics, and number theory problems without depending on a graphing calculator or internet connection. Every formula runs client-side and supports arbitrary precision, so you get correct answers to the digits you need.
How to choose the right math calculator
Identify the operation. Percentages, ratios, and proportions are the most common everyday math tasks. Fractions and decimals are interchangeable representations, and the calculator shows both. Algebra and equation solving handles linear, quadratic, and systems of equations. Geometry and trigonometry solves for sides, angles, areas, and volumes. Statistics and probability covers mean, median, mode, standard deviation, and combinatorics. Number theory handles primes, factors, modular arithmetic, and sequences.
Percentages, ratios, and proportions
The percentage calculator handles three cases: X is what percent of Y, X is Y% of what, and X% of Y. The percentage change calculator shows increase vs. decrease with the correct sign convention. The ratio calculator simplifies and scales ratios (e.g., 3:5 scales to 18:30). The proportion calculator solves for the missing term in a/b = c/d. The tip calculator and discount calculator are specialized percentage tools for everyday use.
Fractions, decimals, and number operations
The fraction calculator performs +, -, ×, ÷ on fractions and shows the result as a mixed number, improper fraction, and decimal. The decimal-to-fraction and fraction-to-decimal converters handle repeating decimals. The GCF and LCM calculators find the greatest common factor and least common multiple. The absolute value, square root, and cube root calculators handle radical operations. The scientific notation calculator converts between standard and exponential form.
Algebra, equations, and polynomials
The quadratic equation solver uses the quadratic formula x = (-b ± √(b²-4ac)) / 2a and shows the discriminant. The linear equation solver handles single-variable equations. The system of equations solver uses substitution and elimination for 2×2 and 3×3 systems. The polynomial calculator factors and expands polynomials up to degree 5. The exponent and logarithm calculator handles natural log, common log, and arbitrary base. The matrix calculator performs addition, multiplication, determinant, and inverse for 2×2 and 3×3 matrices.
Geometry and trigonometry
The Pythagorean theorem calculator solves for any side of a right triangle given the other two. The law of cosines and law of sines calculators solve for sides and angles of any triangle. The area calculator handles all common 2D shapes. The volume and surface area calculator handles all common 3D shapes. The angle converter switches between degrees, radians, and gradians. The unit circle calculator gives sine, cosine, and tangent for any angle.
Statistics, probability, and combinatorics
The mean, median, and mode calculator gives all three central tendency measures plus range and count. The standard deviation calculator handles both population and sample formulas. The variance calculator breaks down into between-group and within-group components. The probability calculator handles single-event, combined events (AND/OR), and conditional probability using Bayes theorem. The combination and permutation calculator handles nCr and nPr. The z-score calculator and confidence interval calculator support statistical inference.
Most Popular Mathematics Calculators
Fraction
Add, subtract, multiply, divide fractions.
Quadratic Formula
Solve quadratic equations — find real and complex roots.
Pythagorean Theorem Calculator — Find Any Side Instantly
Use the Pythagorean theorem (a² + b² = c²) to find any side of a right triangle. Free calculator with diagrams.
Probability
Probability of an event.
Random Number Generator
Generate random numbers within a custom range with options for decimals, unique values, and statistical analysis.
All Mathematics Calculators (102)
Average / Mean
Mean, median, mode, geometric.
Fraction
Add, subtract, multiply, divide fractions.
Probability
Probability of an event.
Standard Deviation
Mean, std dev, variance, range.
Pythagorean Theorem
Find the missing side of a right triangle.
Quadratic Formula
Solve quadratic equations — find real and complex roots.
Exponent
Calculate powers and roots of any number.
Logarithm
Calculate logarithms in any base (common, natural, custom).
Nth Root
Calculate square, cube, or nth root of any number.
LCM
Least common multiple of two or more numbers.
GCF
Greatest common factor of two or more numbers.
Factorial
Calculate the factorial of any non-negative integer.
Permutation
Calculate permutations (nPr) — ordered arrangements.
Ratio
Solve a:b = c:x proportions.
Scientific
sin, cos, tan, log, sqrt, power.
Proportion
Solve a:b = c:d proportions with charts and export.
Combination Calculator (nCr)
Calculate the number of ways to choose r items from n items without regard to order.
Binomial Distribution Calculator — Probability | CalcxApp
Calculate binomial probability for exact, cumulative, and inverse scenarios.
Absolute Value Calculator — |x| | CalcxApp
Calculate the absolute value of any real number and understand its properties.
Complex Number Calculator — Add, Multiply & Divide
Perform operations on complex numbers and visualize results
Matrix Calculator — Add, Multiply & Transpose Matrices
Perform operations on matrices up to 5×5
Determinant Calculator — Calculate Matrix Determinants
Calculate the determinant of a matrix with cofactor expansion
Integral Calculator — Definite & Indefinite Integrals
Compute definite and indefinite integrals with Riemann sum visualization
Derivative Calculator — Find Slopes & Rates of Change
Compute derivatives and visualize the slope at any point
Limit Calculator — Evaluate Function Limits
Evaluate limits and visualize function behavior as x approaches a point
Trigonometry Calculator — Sin, Cos, Tan & More
Calculate trigonometric functions for any angle
Radians to Degrees Converter
Convert between radians, degrees, and gradians
Number Base Converter
Convert numbers between any base from 2 to 36
Roman Numeral Converter
Convert between Arabic numbers and Roman numerals
Prime Factorization Calculator — Factor Any Number
Decompose any number into its prime factors
Fibonacci Calculator — Generate the Fibonacci Sequence
Generate Fibonacci numbers and explore the golden ratio
Sum Calculator - Add Numbers Online | CalcxApp
Calculate the sum, mean, median, and other statistics of a set of numbers instantly.
Significant Figures Calculator - Count & Round Sig Figs
Count significant figures, round to a specified precision, and convert to scientific notation instantly.
Random Number Generator
Generate random numbers within a custom range with options for decimals, unique values, and statistical analysis.
Absolute Difference Calculator | CalcxApp
Calcula la diferencia absoluta entre dos números
Arithmetic Sequence Calculator | CalcxApp
Calcula términos y suma de sucesiones aritméticas
Armstrong Number Checker
Verifica si un número es un número de Armstrong
Ceiling & Floor Calculator | CalcxApp
Calcula los valores techo y piso de cualquier número
Cross Product Calculator | CalcxApp
Calcula el producto cruz de dos vectores 3D
Dot Product Calculator | CalcxApp
Calcula el producto punto de dos vectores
Geometric Sequence Calculator | CalcxApp
Calcula términos y suma de sucesiones geométricas
Golden Ratio Calculator | CalcxApp
Calcula proporciones del número áureo
Harmonic Mean Calculator | CalcxApp
Calcula la media armónica de un conjunto de números
Matrix Multiplication Calculator | CalcxApp
Multiplica dos matrices
Modular Arithmetic Calculator | CalcxApp
Realiza operaciones aritméticas modulares
Number Properties Checker
Verifica si un número es primo, par, perfecto, etc.
Power Of Checker | CalcxApp
Verifica si un número es potencia de otro
GCF Calculator — Greatest Common Factor | CalcxApp
Quick and accurate gcf calculator with visual charts and detailed tables.
LCM Calculator — Least Common Multiple | CalcxApp
Quick and accurate lcm calculator with visual charts and detailed tables.
Prime Factorization Calculator | CalcxApp
Quick and accurate prime factorization calculator with visual charts and detailed tables.
Prime Number Checker
Quick and accurate prime number checker with visual charts and detailed tables.
Fibonacci Calculator — Sequence up to N Terms | CalcxApp
Quick and accurate fibonacci sequence calculator with visual charts and detailed tables.
Factorial Calculator — n! for Any Number | CalcxApp
Quick and accurate factorial calculator with visual charts and detailed tables.
Permutation Calculator — nPr Formula | CalcxApp
Quick and accurate permutation calculator with visual charts and detailed tables.
Combination Calculator — nCr Formula | CalcxApp
Quick and accurate combination calculator with visual charts and detailed tables.
Modulo Calculator — Remainder of Division | CalcxApp
Quick and accurate modulo calculator with visual charts and detailed tables.
Exponent Calculator — xⁿ, eˣ, powers | CalcxApp
Quick and accurate exponent calculator with visual charts and detailed tables.
Log Calculator — log, log2, log10, ln | CalcxApp
Quick and accurate logarithm calculator with visual charts and detailed tables.
Natural Log Calculator — ln(x) | CalcxApp
Quick and accurate natural log calculator with visual charts and detailed tables.
Log Base 2 Calculator — log₂(x) | CalcxApp
Quick and accurate log base 2 calculator with visual charts and detailed tables.
Antilog Calculator — Inverse of log base 10, 2, e | CalcxApp
Quick and accurate antilog calculator with visual charts and detailed tables.
Binary Calculator — Add, Subtract, Multiply, Divide | CalcxApp
Quick and accurate binary calculator with visual charts and detailed tables.
Hex Calculator — Add, Subtract, Multiply Hex | CalcxApp
Quick and accurate hex calculator with visual charts and detailed tables.
Octal Calculator — Base-8 Arithmetic | CalcxApp
Quick and accurate octal calculator with visual charts and detailed tables.
Decimal Calculator — +, −, ×, ÷ with Decimals | CalcxApp
Quick and accurate decimal calculator with visual charts and detailed tables.
Pythagorean Theorem Calculator — a² + b² = c² | CalcxApp
Quick and accurate pythagorean theorem calculator with visual charts and detailed tables.
Distance Between Two Points (2D) Calculator | CalcxApp
Quick and accurate 2d distance calculator with visual charts and detailed tables.
Distance Between Two Points (3D) Calculator | CalcxApp
Quick and accurate 3d distance calculator with visual charts and detailed tables.
Midpoint Formula Calculator | CalcxApp
Quick and accurate midpoint formula calculator with visual charts and detailed tables.
Slope Formula Calculator — m = (y₂-y₁)/(x₂-x₁) | CalcxApp
Quick and accurate slope formula calculator with visual charts and detailed tables.
Distance Formula Calculator — √((x₂-x₁)²+(y₂-y₁)²) | CalcxApp
Quick and accurate distance formula calculator with visual charts and detailed tables.
Quadratic Formula Calculator — ax²+bx+c=0 | CalcxApp
Quick and accurate quadratic formula calculator with visual charts and detailed tables.
Cubic Equation Calculator — Solve ax³+bx²+cx+d | CalcxApp
Quick and accurate cubic equation calculator with visual charts and detailed tables.
Linear Equation Solver
Quick and accurate linear equation solver with visual charts and detailed tables.
System of Equations Solver
Quick and accurate system of equations solver with visual charts and detailed tables.
Matrix Addition Calculator | CalcxApp
Quick and accurate matrix addition calculator with visual charts and detailed tables.
Matrix Multiplication Calculator | CalcxApp
Quick and accurate matrix multiplication calculator with visual charts and detailed tables.
Matrix Determinant Calculator | CalcxApp
Quick and accurate matrix determinant calculator with visual charts and detailed tables.
Matrix Inverse Calculator | CalcxApp
Quick and accurate matrix inverse calculator with visual charts and detailed tables.
Vector Addition Calculator — 2D & 3D | CalcxApp
Quick and accurate vector addition calculator with visual charts and detailed tables.
Arc Length Calculator — Radius + Angle | CalcxApp
Quick and accurate arc length calculator with visual charts and detailed tables.
Sector Area Calculator — Pie Slice | CalcxApp
Quick and accurate sector area calculator with visual charts and detailed tables.
Polygon Area Calculator — Any Number of Sides | CalcxApp
Quick and accurate polygon area calculator with visual charts and detailed tables.
Regular Polygon Calculator — Area & Perimeter | CalcxApp
Quick and accurate regular polygon calculator with visual charts and detailed tables.
Circle Area Calculator — π r² Formula | CalcxApp
Quick and accurate circle area calculator with visual charts and detailed tables.
Sphere Volume Calculator — V = 4/3 π r³ | CalcxApp
Quick and accurate sphere volume calculator with visual charts and detailed tables.
Cylinder Volume Calculator — V = π r² h | CalcxApp
Quick and accurate cylinder volume calculator with visual charts and detailed tables.
Cone Volume Calculator — V = ⅓ π r² h | CalcxApp
Quick and accurate cone volume calculator with visual charts and detailed tables.
Trapezoid Area Calculator — (b₁+b₂)/2 × h | CalcxApp
Quick and accurate trapezoid area calculator with visual charts and detailed tables.
Rhombus Area Calculator — (d₁ × d₂) / 2 | CalcxApp
Quick and accurate rhombus area calculator with visual charts and detailed tables.
Hexagon Area Calculator — Regular 6-Sided | CalcxApp
Quick and accurate hexagon area calculator with visual charts and detailed tables.
Octagon Area Calculator — Regular 8-Sided | CalcxApp
Quick and accurate octagon area calculator with visual charts and detailed tables.
Ellipse Area Calculator — π × a × b | CalcxApp
Quick and accurate ellipse area calculator with visual charts and detailed tables.
Binomial Distribution Calculator — n, p, k | CalcxApp
Quick and accurate binomial distribution calculator with visual charts and detailed tables.
Poisson Distribution Calculator | CalcxApp
Quick and accurate poisson distribution calculator with visual charts and detailed tables.
Normal Distribution Calculator — Z-Score, Probability | CalcxApp
Quick and accurate normal distribution calculator with visual charts and detailed tables.
Standard Deviation Calculator | CalcxApp
Quick and accurate standard deviation calculator with visual charts and detailed tables.
Variance Calculator — Sample & Population | CalcxApp
Quick and accurate variance calculator with visual charts and detailed tables.
Z-Score Calculator — Standard Score | CalcxApp
Quick and accurate z-score calculator with visual charts and detailed tables.
T-Test Calculator — One & Two Sample | CalcxApp
Quick and accurate t-test calculator with visual charts and detailed tables.
Chi-Square Calculator — χ² Test & Critical Value | CalcxApp
Quick and accurate chi-square calculator with visual charts and detailed tables.
Pythagorean Theorem Calculator — Find Any Side Instantly
Use the Pythagorean theorem (a² + b² = c²) to find any side of a right triangle. Free calculator with diagrams.
Frequently Asked Questions
Can I use these calculators for homework? ▾
Yes. The math calculators are designed for educational use and show the formula, step-by-step substitution, and final result. They support arbitrary precision for most operations.
Do they support complex numbers? ▾
Some do. The quadratic solver, polynomial calculator, and matrix calculator support complex number outputs. Most basic arithmetic calculators are real-number only.
How accurate are the results? ▾
Results are accurate to JavaScript floating-point precision (about 15-17 significant digits). For higher precision in critical applications, use a dedicated arbitrary-precision library or a CAS like Mathematica.
Can I save my work? ▾
Yes. Every calculator remembers your last inputs in browser localStorage. You can also export the inputs and result as CSV.
Are the formulas cited? ▾
Yes. Every math calculator shows the source formula and links to a reference (Wolfram MathWorld, NIST Handbook of Mathematical Functions, or a peer-reviewed paper where applicable).
Sources & References
The formulas, definitions, and best-practice guidance in these mathematics calculators are grounded in the following authoritative sources: