Math Calculators
Mathematical calculators for algebra, geometry, statistics, and more
170 calculators available now
Adding Machine Calculator
Calculator with virtual paper tape record
Golden Ratio Calculator
Calculate dimensions and proportions using Phi (1.618)
Long Subtraction Calculator
Perform vertical subtraction with regrouping steps
Long Multiplication Calculator
Vertical multiplication with partial product steps
Math Equation Solver (PEMDAS)
Solve expressions using the order of operations
Mixed Numbers Calculator
Add, subtract, multiply and divide mixed fractions
Mixed Number Converter
Convert mixed numbers to decimals, percents and fractions
Multiples Calculator
Generate a list of multiples for any number
Place Value Calculator
Find the place value of every digit in a number
Ratio Simplifier
Reduce ratios to their simplest integer form
Ratio to Fraction Converter
Change part-to-part ratios into proportions
Rounding to Nearest Multiple Calculator
Round numbers to any custom increment (MROUND)
Simplifying Complex Fractions Calculator
Reduce fractions within fractions step-by-step
Unit Rate Calculator
Calculate price per unit and constant rates
1000 Prime Numbers
Handy reference list of the first 1000 primes
Mean, Median, Mode Calculator
Calculate descriptive statistics for a data set
Percentile Calculator
Find the statistical rank of a value in a set
Scientific Calculator
Perform advanced mathematical calculations
Ratio Calculator
Simplify and calculate ratios
Square Root Calculator
Calculate square root and cube root
Exponent Calculator
Calculate powers and exponents
Solve for Exponents Calculator
Solve exponential equations using logarithms
Large Exponents Calculator
Calculate massive powers in scientific notation
Fourth Roots Calculator
Calculate the fourth root (โ) of a number
Fifth Roots Calculator
Calculate the fifth root (โตโ) of a number
Common Factors Calculator
Find shared divisors and greatest common factor
Comparing Fractions Calculator
Compare two fractions to find which is larger
Fractions Average Calculator
Calculate the average of multiple fractions
Fraction to Percent Calculator
Convert fractions to percentages with steps
Equivalent Fractions Calculator
Find fractions equivalent to your input
Simplifying Fractions Calculator
Reduce fractions to their simplest form
Estimating Fractions Calculator
Estimate fraction sums and differences with rounding
Fractions Number Line
Visual chart and plotter for fractions between 0 and 1
GCF Calculator
Calculate greatest common factor and LCM
Standard Deviation Calculator
Calculate standard deviation and variance
Derivative Calculator
Calculate derivatives of functions
Integral Calculator
Calculate integrals of functions
Graphing Calculator
Evaluate mathematical functions
Percentage Calculator
Calculate percentages, increase, and decrease
Percentage Difference Calculator
Calculate the percentage difference between two values
Square Calculator (xยฒ)
Calculate the squared value of any number
Fraction Calculator
Add, subtract, multiply, and divide fractions
Average Calculator
Calculate mean, median, mode, and range
Percent Change Calculator
Calculate percentage change between values
Binary Calculator
Calculate binary arithmetic and logical operations (AND, OR, XOR)
Cube Root Calculator
Calculate the cube root of any number
Absolute Difference Calculator
Calculate the distance between two numbers
Absolute Value Calculator
Find the magnitude of any real number
Dot Product Calculator
Calculate the scalar product of two vectors
Fraction Exponents Calculator
Calculate numbers raised to fractional powers
Perfect Cubes Chart
Reference list of the first 100 perfect cubes
Numbers to Words Converter
Convert numerical digits into written English words
Digits to Words Converter
Translate a sequence of digits into their full English names
Money Calculator
Count physical cash and denominations
Percent Error Calculator
Calculate the percentage error between measured and theoretical values
Combination with Replacement Calculator
Calculate combinations where items can be repeated
Even and Odd Permutations Calculator
Calculate the count of even and odd permutations
Multifactorial Calculator
Calculate double (n!!) and triple factorials
Pascal's Triangle Calculator
Generate Pascal's Triangle and binomial coefficients
Fibonacci Calculator
Generate Fibonacci sequence and find n-th terms
Circular Permutation Calculator
Calculate arrangements in a circle (Pn)
Tank Volume Calculator
Calculate capacity and fill volume for various tank shapes
Cubic Feet Calculator
Calculate volume of boxes and cylinders in cubic feet
Cubic Yards Calculator
Calculate volume of landscaping materials in cubic yards
Speed Calculator
Solve for speed, distance, or time with unit conversion
Time Duration Calculator
Calculate the exact time and days between two dates or times
Percentage Increase Calculator
Calculate percentage growth between two values
Percentage Decrease Calculator
Calculate percentage reduction and discounts
Circle Calculator
Calculate area, circumference, radius, and diameter
Rectangle Calculator
Calculate area, perimeter, and diagonal of rectangles
Triangle Calculator
Calculate triangle area, sides, and angles
Percentage Calculator
All-in-one percentage calculator for common calculations
Factorial Calculator
Calculate factorial (n!) for any integer
Sphere Calculator
Calculate sphere volume and surface area
Hemisphere Calculator
Calculate hemisphere volume and surface area
Square Pyramid Calculator
Calculate pyramid volume, area, and height
Triangular Prism Calculator
Calculate volume and surface area of triangular prisms
Tube Calculator
Calculate hollow cylinder volume and surface area
Cylinder Calculator
Calculate cylinder volume and surface area
Pythagorean Theorem Calculator
Find missing side of right triangle
Z Score Calculator
Calculate standard score and percentile
Cone Calculator
Calculate cone volume, surface area, and slant height
Cube Calculator
Calculate cube volume, surface area, and diagonals
Right Triangle Calculator
Calculate right triangle sides, angles, and area
T Test Calculator
Calculate two-sample t-test statistics
Combination Calculator
Calculate combinations nCr
Permutation Calculator
Calculate permutations and arrangements
Prime Number Calculator
Check primes, factorization, and prime lists
Pentagon Calculator
Calculate pentagon area, perimeter, diagonals
Hexagon Calculator
Calculate hexagon properties and measurements
Trapezoid Calculator
Calculate trapezoid area and perimeter
Parallelogram Calculator
Calculate parallelogram properties
Rhombus Calculator
Calculate rhombus area, perimeter, diagonals
Ellipse Calculator
Calculate ellipse area, perimeter, eccentricity
Prism Calculator
Calculate prism volume and surface area
Chi Square Calculator
Perform chi-square statistical test
ANOVA Calculator
Analysis of variance between groups
P Value Calculator
Calculate statistical p-values
Confidence Interval Calculator
Calculate confidence intervals for means
Sample Size Calculator
Calculate required sample size
Correlation Calculator
Calculate Pearson correlation coefficient
Multiple Regression Calculator
Multi-variable regression analysis
Limit Calculator
Calculate mathematical limits
Series Calculator
Calculate arithmetic and geometric series
Sequence Calculator
Calculate sequence terms and patterns
Modulo Calculator
Calculate modulo and remainders
GCD Calculator
Calculate greatest common divisor
LCM Calculator
Calculate least common multiple
Roman Numeral Calculator
Convert between numbers and Roman numerals
Significant Figures Calculator
Calculate and round significant figures
Octagon Calculator
Calculate octagon area and perimeter
Arc Length Calculator
Calculate arc length from radius and angle
Sector Area Calculator
Calculate circular sector area
Perimeter Calculator
Calculate perimeter of various shapes
Surface Area Calculator
Calculate 3D surface areas
Volume Calculator
Calculate 3D volumes
Rounding Calculator
Round numbers to decimals or sig figs
Scientific Notation Calculator
Convert to/from scientific notation
Normal Distribution Calculator
Calculate normal distribution probabilities
Binomial Distribution Calculator
Calculate binomial probabilities
Poisson Distribution Calculator
Calculate Poisson probabilities
Variance Calculator
Calculate variance and standard deviation
Margin of Error Calculator
Calculate survey margin of error
Probability Calculator
Calculate event probabilities
Odds Calculator
Convert between probability odds formats
Hexadecimal Calculator
Perform hexadecimal operations
Octal Calculator
Perform octal number operations
ASCII Calculator
Convert between ASCII codes and characters
Covariance Calculator
Calculate covariance between datasets
Skewness Calculator
Calculate distribution skewness
Kurtosis Calculator
Calculate distribution kurtosis
Slope Calculator
Calculate slope of line from two points with equation
Area Calculator
Calculate area of rectangle, circle, triangle, and more
Big Number Calculator
Calculate with very large numbers and scientific notation
Prime Factorization Calculator
Find prime factors and factorization of any integer
Long Division Calculator
Divide with steps showing quotient and remainder
Countdown Timer
Real-time countdown to any future event or date
PPI Calculator
Calculate pixels per inch and screen pixel density
Vote Percentage Calculator
Calculate election results and poll percentage shares
Trigonometry Calculator
Solve sine, cosine, tangent, and inverse functions
Arcsin(x) Calculator
Inverse sine calculator for angles
Arctan(x) Calculator
Inverse tangent calculator for angles
Addition Calculator
Calculate the sum of two numbers
Arccos(x) Calculator
Calculate inverse cosine in degrees and radians
Convolution Calculator
Calculate discrete linear convolution of two sequences
Ellipsoid Volume Calculator
Calculate the volume of a 3D ellipsoid using semi-axes
Irregular Prism Volume Calculator
Calculate volume using base area and vertical height
Rectangular Prism Volume Calculator
Calculate volume of a box or cuboid (l ร w ร h)
Square Pyramid Volume Calculator
Calculate volume of a square-based pyramid
Cylinder Volume Calculator
Calculate volume of a cylinder (ฯrยฒh)
Cone Volume Calculator
Calculate volume of a 3D cone ((1/3)ฯrยฒh)
Cube Volume Calculator
Calculate volume of a 3D cube (sยณ)
Metals Weight Calculator
Calculate weight of various metals like steel and aluminum
Stadium Geometric Shape Calculator
Calculate area and perimeter of a stadium (discorectangle) shape
Regular Polygon Calculator
Calculate area and perimeter of any regular n-sided polygon
Conical Frustum Calculator
Calculate volume and surface area of a truncated cone
Square and Cube Calculator
Calculate all properties of 2D squares and 3D cubes
Speed Distance Time Calculator
Calculate speed, distance, or time using the fundamental motion formulas
Spearman's Correlation Calculator
Calculate Spearman's rank correlation coefficient to measure monotonic relationships between variables
Standard Error Calculator
Calculate standard error of the mean (SEM) for datasets with up to 30 values
Uniform Distribution Calculator
Calculate uniform distribution properties including mean, variance, PDF, CDF, and generate random samples
Sum of Squares Calculator
Calculate sum of squares to measure data variability for statistical analysis
Third Quartile Calculator
Calculate the third quartile (Q3), upper quartile, and 75th percentile with IQR and outlier detection
Upper and Lower Fence Calculator
Calculate upper and lower fence values to identify outliers in datasets up to 50 values
Z-Test Calculator
Perform one-sample Z-test with known population standard deviation to test hypotheses
Two Dice Probability Calculator
Calculate the probability of rolling different sums and combinations with two dice
Youden Index Calculator
Calculate Youden Index (J statistic) to measure diagnostic test effectiveness
Upper Control Limit Calculator
Calculate upper and lower control limits (UCL and LCL) for statistical process control
Venn Diagram Calculator
Calculate unions, intersections, and probabilities for Venn diagrams with set operations
Two Envelopes Paradox Calculator
Explore the two envelopes paradox and analyze whether switching envelopes provides advantage