Math Calculators
Percentages, averages, roots, and statistics.
Quadratic CalculatorSolve quadratic equations instantly with the discriminant, root classification, and a complete step-by-step breakdown.
Linear Equation CalculatorSolve ax + b = c or equations with x on both sides with clear algebra steps, special case handling, and beginner-friendly explanations.
System of Equations CalculatorSolve 2x2 systems of linear equations, classify no-solution and infinite-solution cases, and see the ordered pair on a graph.
Inequality CalculatorSolve linear and compound inequalities, convert the answer into interval notation, and view the solution on a number line.
Solve ax^2 + bx + c CalculatorSolve ax^2 + bx + c = 0 with the discriminant, root classification, formula substitution, and a complete step-by-step walkthrough.
Discriminant CalculatorCalculate D = b^2 - 4ac, classify the roots, and follow a clear step-by-step discriminant breakdown for any quadratic equation.
Triangle CalculatorSolve SSS, SAS, ASA, AAS, and SSA triangles with missing sides, angles, area, perimeter, and step-by-step working.
Circle CalculatorSolve radius, diameter, circumference, and area from one known circle value with formulas and step-by-step working.
Slope CalculatorFind slope from two points with exact fraction, decimal result, rise, run, and line equation outputs.
Distance Formula CalculatorFind the distance between two points with exact radical form when possible, decimal approximation, and step-by-step working.
Midpoint CalculatorFind the midpoint between two points or solve a missing endpoint from one endpoint and the midpoint.
Missing Side Triangle CalculatorFind a missing triangle side with the Pythagorean theorem, Law of Cosines, or Law of Sines, with step-by-step working.
Right Triangle CalculatorSolve right triangles from two sides or from one side and one angle, with all sides, angles, area, perimeter, and steps.
Pythagorean Theorem CalculatorFind the hypotenuse or a missing leg of a right triangle with formulas, validation, examples, and step-by-step working.
Triangle Angles CalculatorFind missing triangle angles with the triangle sum rule, exterior angle theorem, and isosceles triangle angle formulas, with steps and examples.
Special Right Triangle CalculatorSolve 30-60-90 and 45-45-90 triangles from one known side with ratio explanations, formulas, examples, and step-by-step working.
Radical CalculatorCalculate square roots, cube roots, and any nth root of any number instantly.
Square Root CalculatorCalculate the square root of any non-negative number instantly with step-by-step working and perfect square detection.
Cube Root CalculatorCalculate the cube root of any number — including negatives — with step-by-step working and perfect cube detection.
Nth Root CalculatorCalculate any nth root for any root index — supports 4th, 5th, 6th roots and beyond, with step-by-step working.
Radical Simplifier CalculatorSimplify any square root radical step by step — finds the largest perfect square factor and shows the simplified form.
Percentage CalculatorCalculate any percentage instantly — percentage of a number, percentage change, or what percent one number is of another.
Percentage Increase CalculatorCalculate the percentage increase between two numbers instantly. Shows step-by-step working.
Percentage Decrease CalculatorCalculate the percentage decrease between two numbers instantly. Shows step-by-step working.
Percentage Change CalculatorCalculate the percentage change between two numbers — detects increase, decrease, or no change.
What Is X% of Y CalculatorFind what X percent of Y is instantly. Enter any percentage and number to get the result with working.
ERA CalculatorCalculate a baseball pitcher's Earned Run Average (ERA) from earned runs and innings pitched.
ERA Formula CalculatorLearn the ERA formula and apply it step by step — with full inning conversion guide and worked examples.
Pitcher ERA CalculatorCalculate a pitcher's ERA and compare it to MLB benchmarks for starters and relievers.