Solve equations, simplify fractions, compute areas and volumes, and work through algebra, geometry, trigonometry, and calculus problems step by step. From basic arithmetic to number theory, these math tools show their work so you can learn as you calculate.
Most popular in Math
3 highlightsBMI Calculator
PopularCalculate Body Mass Index (BMI) based on height and weight
Also: Weight to Height Ratio Calculator, Body Mass Index Calculator
Mortgage Calculator
PopularCalculate mortgage payments, affordability, and amortization schedules for property loans.
Also: House Loan Calculator, Mortgage Payment Calculator, Loan Affordability Calculator
Equation Solver
PopularSolve any equation step by step -- linear, quadratic, cubic, polynomial, and transcendental. Free solutions with interactive graph and discriminant analysis.
Also: Algebra Solver, Equation Calculator, Polynomial Root Calculator
Algebra
13 toolsCalculators for algebraic equations and expressions.
Equation Solver
Solve any equation step by step -- linear, quadratic, cubic, polynomial, and transcendental. Free solutions with interactive graph and discriminant analysis.
Basic Calculator
Perform basic arithmetic operations: addition, subtraction, multiplication, division, and percentage calculations.
Graphing Calculator
Free online graphing calculator. Plot multiple math functions interactively with zoom, pan, and real-time rendering. Supports polynomials, trig, exponential, logarithmic, and more.
Matrix Calculator
Perform matrix operations including addition, multiplication, determinant, inverse, RREF, rank, trace, and eigenvalues with step-by-step results.
Quadratic Formula Calculator
Solve quadratic equations ax² + bx + c = 0 using the quadratic formula. Find roots, discriminant, vertex, and graph the parabola.
Complex Number Calculator
Perform arithmetic on complex numbers — add, subtract, multiply, divide, modulus, argument, conjugate, powers (De Moivre), and nth roots — with polar and rectangular results.
Linear System Solver -- Step-by-Step Calculator
Solve systems of 2 or 3 linear equations step by step. Gaussian elimination, Cramer's rule, and matrix inverse methods with system classification.
Fraction Calculator
Perform arithmetic operations on fractions: add, subtract, multiply, divide, and simplify.
Simplifying Fractions Calculator
Simplify fractions and convert improper fractions to mixed numbers.
Vector Calculator
Perform 2D and 3D vector operations including addition, subtraction, dot product, cross product, and more
Scientific Calculator
Advanced scientific calculator with trigonometric, logarithmic, and exponential functions.
Absolute Value Calculator
Calculate the absolute value of numbers or expressions
Percentage Calculator
Calculate percentages, percentage changes, and solve percentage problems
Geometry
5 toolsTools for geometric calculations and measurements.
Volume Calculator
Calculate the volume of various 3D shapes with different units.
Triangle Calculator
Solve any triangle from SSS, SAS, ASA, AAS, or SSA inputs. Calculates all sides, angles, area, perimeter, inradius, circumradius, altitudes, and medians with step-by-step solutions.
Circle Calculator
Calculate all circle properties from radius, diameter, area, or circumference. Includes arc length, sector area, segment area, and chord length with step-by-step solutions.
Pythagorean Theorem Calculator
Free Pythagorean theorem calculator with step-by-step solutions. Find the hypotenuse or missing side of any right triangle. Includes triangle diagram, angles, area, perimeter, and Pythagorean triple detection.
Area Calculator
Calculate the area of 2D shapes including rectangles, triangles, circles, ellipses, trapezoids, parallelograms, rhombuses, regular polygons, sectors, and annuli with step-by-step solutions and unit conversions.
Calculus
4 toolsCalculators for differential and integral calculus.
Derivative Calculator
Compute symbolic derivatives of any function with step-by-step solutions and an interactive graph. Supports chain rule, product rule, higher-order derivatives, and more.
Integral Calculator
Compute definite integrals numerically with Simpson's rule, trapezoidal rule, or midpoint method. Visualize the shaded area under any curve with free step-by-step solutions.
Limit Calculator
Evaluate limits of mathematical expressions numerically. Supports one-sided limits, limits at infinity, and indeterminate form detection.
Parametric Equation Plotter
Plot parametric equations x(t) and y(t) interactively. Calculate arc length, enclosed area, and explore classic curves like Lissajous figures, cycloids, and spirals.
Number Theory
2 toolsCalculators for number properties and relationships.
Number Base Converter
Convert numbers between binary, octal, decimal, hex, and any base 2-36. Instant multi-base display with positional breakdown and step-by-step conversion.
Prime Factorization Calculator
Decompose any integer into its prime factors with an interactive factor tree, divisor count, GCD, and LCM.
Trigonometry
2 toolsTools for trigonometric calculations and functions.
Polar Coordinate Plotter | Interactive Polar Grapher
Plot polar equations r = f(θ) interactively. Visualize roses, cardioids, limaçons, spirals, lemniscates, and conics with animated tracing, preset gallery, and curve property analysis.
Unit Circle Explorer
Explore the unit circle interactively: enter any angle to see all six trigonometric function values, coordinates, quadrant, and reference angle.
Discrete Mathematics
1 toolTools for combinatorics, graph theory, and logic.
More tools
20 toolsBMI Calculator
Calculate Body Mass Index (BMI) based on height and weight
Mortgage Calculator
Calculate mortgage payments, affordability, and amortization schedules for property loans.
Sales Tax Calculator
Calculate sales tax, final price, and pre-tax amount for any purchase
Square Footage Calculator
Calculate square footage and area conversions for various shapes including price calculations.
GPA Calculator
Calculate your semester and cumulative Grade Point Average based on course grades and credit hours
Test Grade Calculator
Calculate student grades and statistics for various grading methods
Assignment Grade Calculator
Track assignments by category, calculate your running grade, and see what scores you need to reach your target grade.
Confidence Interval Calculator
Calculate confidence intervals for population means, proportions, and differences
Random Number Generator
Generate random numbers with customizable ranges and distribution types.
Regression Calculator
Fit linear, polynomial, exponential, logarithmic, and power regression models to data
Significant Figures Calculator
Count significant figures, round numbers to N sig figs, and apply addition, subtraction, multiplication, and division with correct sig fig precision rules.
Motion Calculator
Calculate velocity, acceleration, distance, and time in motion problems.
Standard Deviation Calculator
Calculate standard deviation and variance from a dataset
BPM Calculator
Calculate tempo and timing in music with this BPM (Beats Per Minute) calculator.
P-value Calculator
Calculate p-values and statistical significance for various hypothesis tests
Unit Converter
Convert between various units including length, weight, volume, area, speed, and pressure.
Tile Calculator
Estimate tiles needed for flooring, walls, or backsplashes, including waste.
Every Second Calculator
Discover what happens around the world in any time interval.
Pizza Size Calculator
Compare pizza sizes, calculate area per slice, and find the best value per square inch when ordering pizza.
Tip Calculator
Calculate tip amounts, total bills, and per-person splits for any restaurant or service. Supports custom tip percentages and group splitting.