Tools
Math Tools
Free online calculators and converters to help you solve math problems quickly.
Percentage Calculator
Calculate percentages, increases, and decreases
GCF & LCM Calculator
Find greatest common factor and least common multiple
Fraction Simplifier
Reduce fractions to lowest terms
Decimal ↔ Fraction Converter
Convert between decimals and fractions
Fraction Calculator
Add, subtract, multiply, and divide fractions
Equation Grapher
Plot and visualize linear equations
Quadratic Solver
Solve quadratic equations ax² + bx + c = 0
Triangle Calculator
Calculate angles, sides, area, and perimeter
Unit Circle
Explore trigonometric values on the unit circle
Scientific Calculator
Full-featured scientific calculator
Statistics Calculator
Calculate mean, median, mode, and standard deviation
Systems of Equations
Solve 2x2 systems of linear equations
Area & Volume Calculator
Calculate area and volume of shapes
Unit Converter
Convert between different units of measurement
Put these tools on your own site
Every tool can be embedded in a class page, LMS or blog for free. Open a tool and use "Embed this tool on your site" at the bottom.