Free online math tools
Inequality Calculators Made Simple
Solve supported linear inequalities, understand boundary lines and visualize solutions with free browser-based calculators.
Open Graphing CalculatorChoose a calculator
Graphing Inequalities Calculator
Plot linear boundaries and visualize solution regions.
Open tool →Linear Inequality Solver
Solve supported linear inequalities with worked steps.
Open tool →System of Inequalities Calculator
Explore the system calculator for multiple inequalities.
Open tool →Number Line Calculator
Visualize one-variable solutions and boundary points.
Open tool →What is an inequality?
An inequality compares two expressions using symbols such as less than (<), greater than (>), less than or equal to (≤), and greater than or equal to (≥).
Graphing a two-variable linear inequality involves drawing its boundary line and identifying the region that satisfies the inequality. A one-variable inequality can be shown as an interval on a number line.