Free online math calculators for percentages, fractions, algebra, geometry, statistics, and more. 57 calculators with step-by-step solutions to understand the math.
Advanced scientific calculator with trigonometry, logarithms, and exponential functions.
Simple calculator for basic arithmetic operations including addition, subtraction, multiplication, and division.
Calculate percentages, percentage change, and percentage of a number. Multiple calculation modes available.
Add, subtract, multiply, and divide fractions with step-by-step solutions and automatic simplification.
Calculate powers and exponents. Supports positive, negative, and fractional exponents.
Calculate logarithms with any base including natural log (ln) and common log (log10).
Calculate square roots, cube roots, and nth roots of any number.
Calculate mean average of a set of numbers quickly and easily.
Round numbers to specified decimal places or significant figures.
Calculate with arbitrarily large numbers beyond standard limits.
Calculate percent error between expected and actual values for error analysis.
Find the Greatest Common Factor (GCD) of two or more numbers with detailed steps.
Calculate the Least Common Multiple of two or more numbers with explanation.
Find all factors of a number including prime and composite factors.
Break down numbers into their prime factors with detailed factorization tree.
Find all common factors shared between two or more numbers.
Perform long division with step-by-step solution showing all work.
Find patterns in number sequences and predict the next terms.
Generate random numbers within a specified range for various purposes.
Convert between binary, decimal, hexadecimal, and octal number systems.
Convert and perform arithmetic with hexadecimal numbers.
Convert numbers to and from scientific notation (exponential form).
Convert between Roman numerals and decimal numbers.
Calculate triangle area, perimeter, angles, and sides with various input methods.
Calculate right triangle properties using Pythagorean theorem and trigonometry.
Calculate the sides of a right triangle using a² + b² = c².
Calculate circle area, circumference, diameter, and radius.
Calculate volume of 3D shapes including spheres, cylinders, cones, and prisms.
Calculate area of various 2D shapes including rectangles, circles, and triangles.
Calculate surface area of 3D shapes including cubes, spheres, and cylinders.
Calculate distance between two points in 2D or 3D coordinate space.
Solve quadratic equations using the quadratic formula with step-by-step solutions.
Calculate the slope of a line from two points and find the equation.
Calculate and simplify ratios, find equivalent ratios, and solve proportion problems.
Perform matrix operations including addition, multiplication, determinant, and inverse.
Calculate comprehensive statistics including mean, median, mode, range, and more.
Calculate mean, variance, and standard deviation for a dataset with detailed steps.
Calculate measures of central tendency including mean, median, and mode.
Calculate required sample size for surveys and statistical studies.
Calculate z-scores and find probabilities from the standard normal distribution.
Calculate confidence intervals for population parameters with various confidence levels.
Calculate p-values for hypothesis testing and statistical significance.
Calculate probabilities for single and multiple events including combinations.
Calculate permutations and combinations for arranging objects in order.
Calculate radioactive decay, exponential decay, and half-life of substances.
Calculate derivatives with step-by-step solutions using power rule, chain rule, product rule, and more.
Calculate indefinite and definite integrals with step-by-step solutions and integration techniques.
Calculate limits with step-by-step solutions including L'Hôpital's rule and special limits.
Solve linear, quadratic, polynomial, and other equations with step-by-step solutions.
Solve systems of linear equations using substitution, elimination, or matrices.
Factor polynomials including trinomials, difference of squares, and perfect squares.
Plot mathematical functions interactively with zoom, pan, and analysis features.
Calculate linear regression with scatter plot visualization, R-squared, and predictions.
Calculate all six trig functions, inverse functions, and identities for any angle.
Calculate sine of angles in degrees or radians with graph visualization.
Calculate cosine of angles in degrees or radians with graph visualization.
Calculate tangent of angles in degrees or radians with graph visualization.
Understand the math with detailed step-by-step explanations for each calculation.
Get answers instantly. No waiting, no signup, just fast calculations.
Once loaded, calculators work without internet. Perfect for studying anywhere.