Standard Calculator

Use a simple keypad calculator for everyday arithmetic.

Scientific Calculator

Use a keypad calculator for powers, roots, trigonometry, logarithms, and constants.

Programmer Calculator

Use a keypad calculator for binary, decimal, hexadecimal, and bitwise math.

Percentage Calculator

Calculate percent-of, percent share, and percent changes.

Ratio Calculator

Simplify a ratio and scale it to an equivalent value.

Rounding Calculator

Round a number to decimal places or a custom increment.

Square Root Calculator

Calculate the square root of a non-negative number.

Fraction Calculator

Add, subtract, multiply, and divide two fractions.

Mean, Median, Mode, and Sum Calculator

Find the mean, median, mode, sum, minimum, and maximum from a pasted list of numbers.

Exponent Calculator

Raise a base to any exponent.

Scientific Notation Calculator

Convert a number into scientific notation.

Significant Figures Calculator

Count and round significant figures.

Prime Factorization Calculator

Break an integer into prime factors.

GCF LCM Calculator

Find greatest common factor and least common multiple.

Modulo Calculator

Find quotient and remainder after division.

Logarithm Calculator

Calculate logarithms with any positive base.

Quadratic Formula Calculator

Solve ax^2 + bx + c with the quadratic formula.

Linear Equation Solver

Solve y = mx + b for a chosen x value.

System of Two Equations Calculator

Find the intersection point for two lines.

Polynomial Evaluator

Evaluate ax^3 + bx^2 + cx + d at x.

Complex Number Calculator

Add, subtract, multiply, and divide complex numbers.

Matrix Calculator

Edit two matrices and inspect common linear algebra operations.

System of Equations Calculator

Solve an augmented matrix and classify the solution set.

Determinant Calculator

Calculate a square matrix determinant with elimination steps.

Eigenvalues Calculator

Find eigenvalues and eigenvectors for small square matrices.

Right Triangle Calculator

Solve hypotenuse, area, perimeter, and angle from two legs.

Circle Calculator

Calculate circle diameter, circumference, and area.

Square Calculator

Calculate square area, perimeter, and diagonal from one side.

Rectangle Calculator

Calculate rectangle area, perimeter, and diagonal.

Triangle Calculator

Calculate triangle perimeter and area from three sides.

Parallelogram Calculator

Calculate parallelogram area, perimeter, height, and diagonals.

Rhombus Calculator

Calculate rhombus area, perimeter, height, and diagonals.

Trapezoid Calculator

Calculate trapezoid area, perimeter, midline, and base angles.

Polygon Calculator

Calculate area and perimeter from polygon vertices.

Regular Polygon Calculator

Calculate perimeter, area, and interior angle for a regular polygon.

Distance Formula Calculator

Find the distance between two points.

Midpoint Formula Calculator

Find the midpoint between two points.

Right Triangle Solver

Solve a right triangle from one known side and one acute angle.

Cube Calculator

Calculate cube volume, surface area, and diagonals from one edge.

Rectangular Prism Calculator

Calculate rectangular prism volume, surface area, and space diagonal.

Triangular Prism Calculator

Calculate triangular prism area, surface area, and volume from three sides.

Sphere Calculator

Calculate sphere surface area and volume.

Cylinder Calculator

Calculate cylinder surface area and volume.

Cone Calculator

Calculate cone slant height, surface area, and volume.

Pyramid Calculator

Calculate square pyramid area, surface area, and volume.

Standard Deviation Calculator

Calculate mean, variance, and standard deviation from a list of values.

Quartile Calculator

Find quartiles, median, and interquartile range with selectable methods.

Percentile Calculator

Find a percentile value from a number list and show the sorted interpolation.

Z Score Calculator

Calculate how many standard deviations a value is from the mean.

P-Value Calculator

Find one-tailed or two-tailed p-values from a z or t statistic.

Confidence Interval Calculator

Estimate a confidence interval for a sample mean with z or t assumptions.

Probability Calculator

Calculate probability and odds from outcomes.

Permutation Combination Calculator

Calculate nPr and nCr.

Linear Regression Calculator

Fit a best-fit line to pasted points.

Derivative Power Rule Calculator

Apply the power rule and evaluate the derivative.

Integral Power Rule Calculator

Apply the power rule for integrals and evaluate a definite integral.

Average Rate of Change Calculator

Find the slope between two points.

Limit Evaluator

Evaluate a simple function at a point.