Math Tools
Scientific calculators, geometry, statistics and number tools
Scientific Calculator
Full scientific calculator with trigonometry, log, and more.
Fraction Calculator
Add, subtract, multiply, and divide fractions easily.
Prime Number Checker
Check if a number is prime and find all its factors.
Prime Factorization
Break any number down into its prime factors.
LCM Calculator
Find the Least Common Multiple of two or more numbers.
GCD Calculator
Find the Greatest Common Divisor of two or more numbers.
Fibonacci Sequence Generator
Generate the Fibonacci sequence up to N terms.
Factorial Calculator
Calculate factorial of any number (n!).
Combinations Calculator
Calculate C(n,r) — combinations of n things taken r at a time.
Permutations Calculator
Calculate P(n,r) — permutations of n things taken r at a time.
Probability Calculator
Calculate basic probability: favorable / total outcomes.
Mean, Median & Mode
Calculate mean, median, mode, and range for a data set.
Standard Deviation
Calculate population and sample standard deviation.
Z-Score Calculator
Calculate z-score from value, mean, and standard deviation.
Quadratic Equation Solver
Solve quadratic equations ax²+bx+c=0 with real solutions.
Linear Equation Solver
Solve single-variable linear equations for x.
Pythagorean Theorem
Calculate any side of a right triangle from the other two.
Circle Calculator
Calculate area, circumference, and diameter of a circle.
Triangle Calculator
Calculate area, perimeter, and angles of any triangle.
Rectangle Calculator
Calculate area, perimeter, and diagonal of a rectangle.
Regular Polygon Calculator
Calculate area and perimeter of regular polygons.
Sphere Calculator
Calculate volume and surface area of a sphere.
Cylinder Calculator
Calculate volume and surface area of a cylinder.
Cone Calculator
Calculate volume and surface area of a cone.
Logarithm Calculator
Calculate log base 10, natural log, and log base 2.
Exponent Calculator
Calculate any base raised to any power (x^y).
Square Root Calculator
Calculate square root and nth root of any number.
Cube Root Calculator
Calculate the cube root of any number precisely.
Ratio Simplifier
Simplify ratios and solve ratio proportion problems.
Proportion Solver
Solve proportion equations to find the unknown value.
Number Rounding Tool
Round numbers to any decimal places or significant figures.
Modulo Calculator
Calculate the modulo (remainder) of any division operation.
Binary Arithmetic
Add, subtract, and multiply binary numbers.
2×2 Matrix Calculator
Calculate determinant, inverse, and trace of 2×2 matrices.
Number Sequence Generator
Generate arithmetic and geometric number sequences.
Statistics Calculator
Calculate multiple statistics from any numerical data set.
Percentage Math
Advanced percentage calculations: of, change, reverse.
Pi Digits Calculator
Calculate and display Pi to many decimal places.
Golden Ratio Calculator
Calculate golden ratio values and proportions.
Absolute Value Calculator
Calculate the absolute value of any number.
Significant Figures
Round numbers to a specified number of significant figures.
Hex Arithmetic
Add, subtract, and multiply hexadecimal numbers.
Vector Calculator
Add, subtract vectors and find magnitude and dot product.
Number Base Arithmetic
Perform arithmetic in binary, octal, and hexadecimal.
Euler's Number (e)
Explore and calculate with Euler's number e ≈ 2.71828.