math calculators

Solve common math problems with unit-aware steps.

Slope Calculator

Calculate the slope between two Cartesian points.

Scientific Calculator

Evaluate scientific expressions with general, trigonometry, and logarithm keypads, selectable degree or radian angle mode, constants, and calculation history.

Percentage Calculator

Calculate a percentage of a value, determine what percent one value is of another, or measure percentage change.

Fraction Calculator

Add, subtract, multiply, and divide exact fractions with a simplified result.

Quadratic Equation Solver

Solve ax² + bx + c = 0, including repeated and complex roots, with discriminant steps.

Matrix Calculator

Add, subtract, multiply, and transpose matrices; calculate determinant, inverse, RREF, rank, or solve an augmented linear system.

Linear Equation Solver

Solve linear equations with parentheses, fractions, decimals, and explicit no-solution or infinitely-many-solution states.

Ratio and Proportion Calculator

Simplify ratios, find a missing proportional term, and calculate scale factors with optional unit labels.

2D and 3D Vector Calculator

Calculate magnitude, unit vector, sum, difference, dot product, cross product, angle, and projection.