Mathematics Calculators
Our mathematics calculators cover everything from fractions, percentages, and ratios to algebra, geometry, and statistics. They are built for students, teachers, and anyone who needs fast, accurate answers, with clear results you can trust and reuse.
Absolute Value Calculator
Calculate absolute value and solve equations.
Area Calculator
Calculate the area of common shapes including rectangles, triangles, circles, and more.
Arithmetic Series Calculator
Find the nth term and the sum of an arithmetic sequence from its first term, common difference, and number of terms.
Average Calculator
Calculate the average (arithmetic mean) of a set of numbers, with sum, count, min, and max.
Basic Calculator
A simple calculator for basic arithmetic operations: add, subtract, multiply, divide.
Big Number Calculator
Perform arithmetic with arbitrarily large numbers beyond standard precision.
Binary Calculator
Perform arithmetic and conversions with binary numbers.
Binomial Probability Calculator
Compute exact and cumulative binomial probabilities plus the mean and standard deviation for n trials.
Boiling Point Calculator
Calculate boiling point elevation of a solution.
Circle Calculator
Calculate radius, diameter, circumference, and area of a circle.
Common Factor Calculator
Find common factors shared between two or more numbers.
Confidence Interval Calculator
Calculate confidence intervals for a population mean.
Decimal to Fraction Calculator
Convert a decimal into its simplest fraction, including repeating decimals.
Dilution Calculator
Calculate dilution using C1V1 = C2V2 formula.
Distance Calculator
Calculate the distance between two points in 2D or 3D space.
Exponent Calculator
Calculate powers and exponents including fractional and negative exponents.
Factor Calculator
Find all factors (divisors) of any positive integer.
Factorial Calculator
Compute n! exactly for n up to 170, with digit count for larger n.
Fibonacci Calculator
Calculate Fibonacci numbers and sequence.
Fraction Calculator
Add, subtract, multiply, and divide fractions and mixed numbers.
Freezing Point Calculator
Calculate freezing point depression of a solution.
GCF Calculator
Calculate the greatest common factor of two or more numbers.
Geometric Series Calculator
Compute the nth term, finite sum, and infinite sum of a geometric sequence from its first term and common ratio.
Hemisphere Calculator
Calculate hemisphere volume and surface area.
Hex Calculator
Perform arithmetic and conversions with hexadecimal numbers.
Ideal Gas Law Calculator
Solve PV=nRT for any variable.
Law of Cosines Calculator
Solve an oblique triangle for a missing side (SAS) or a missing angle (SSS) using the law of cosines.
Law of Sines Calculator
Solve oblique triangles with the law of sines for AAS, ASA, and the ambiguous SSA case.
LCM Calculator
Calculate the least common multiple of two or more numbers.
Linear Interpolation Calculator
Estimate the y value at any x along the straight line through two known points (x₁, y₁) and (x₂, y₂).
Log Calculator
Calculate logarithms with any base including natural log and log base 10.
Long Division Calculator
Perform long division with step-by-step work shown.
Margin of Error Calculator
Compute the survey margin of error for a proportion from sample size and confidence.
Matrix Calculator
Perform matrix operations including addition, multiplication, determinant, and inverse.
Mean Median Mode Range Calculator
Calculate the mean, median, mode, and range of a set of numbers.
Midpoint Calculator
Find the midpoint of two points, or a missing endpoint from one endpoint and the midpoint.
Modulo Calculator
Calculate the remainder of division (modulo operation).
Normal Distribution Calculator
Find normal distribution probabilities below, above, or between values using the z-score and CDF.
Number Sequence Calculator
Identify and extend arithmetic, geometric, and other number sequences.
P-Value Calculator
Calculate p-values for hypothesis testing from test statistics.
Parallelogram Calculator
Calculate parallelogram area and perimeter.
Percent Calculator
Calculate percentages: find percent of a number, percent change, and more.
Percent Composition Calculator
Calculate the percent composition of elements in a compound.
Percent Error Calculator
Calculate the percent error between an experimental and theoretical value.
Permutation & Combination Calculator
Calculate permutations (nPr) and combinations (nCr) for counting problems.
pH Calculator
Calculate pH, pOH, and hydrogen ion concentration.
Polar / Cartesian Converter
Convert between Cartesian (x, y) and polar (r, θ) coordinates in both directions, with angles in degrees or radians.
Prime Factorization Calculator
Find the prime factorization of any positive integer.
Probability Calculator
Calculate probabilities for single and combined events.
Proportion Calculator
Solve a/b = c/d for the missing term by cross multiplication.
Pyramid Calculator
Calculate pyramid volume and surface area.
Pythagorean Theorem Calculator
Solve for any side of a right triangle using the Pythagorean theorem (a² + b² = c²).
Quadratic Formula Calculator
Solve quadratic equations using the quadratic formula (ax² + bx + c = 0).
Random Number Generator
Generate random numbers within a specified range with various options.
Ratio Calculator
Simplify ratios, solve proportions, and scale ratios to desired values.
Regular Polygon Calculator
Calculate area, perimeter, and angles of a regular polygon.
Right Triangle Calculator
Calculate sides, angles, area, and hypotenuse of a right triangle.
Roman Numeral Converter
Convert between Roman numerals and decimal numbers.
Root Calculator
Calculate square roots, cube roots, and nth roots of any number.
Rounding Calculator
Round numbers to a chosen number of decimal places using several rounding methods.
Sample Size Calculator
Calculate the required sample size for surveys and experiments.
Scientific Calculator
Full-featured scientific calculator with trigonometry, logarithms, and expression history.
Scientific Notation Calculator
Convert numbers to scientific and engineering notation.
Significant Figures Calculator
Count and round to significant figures.
Slope Calculator
Calculate the slope of a line from two points or the equation of a line.
Standard Deviation Calculator
Calculate standard deviation, variance, and the mean for a data set.
Statistics Calculator
Calculate comprehensive descriptive statistics for any data set.
Surface Area Calculator
Calculate the surface area of cubes, spheres, cylinders, and cones.
Triangle Calculator
Calculate area, perimeter, angles, and sides of any triangle.
Vector Calculator
Compute vector magnitude, dot product, 3D cross product, and the angle between two 2D or 3D vectors.
Volume Calculator
Calculate the volume of cubes, spheres, cylinders, cones, and rectangular prisms.
Weighted Average Calculator
Compute a weighted mean from values and their weights.
Z-Score Calculator
Calculate Z-scores and probabilities for normal distributions.