Math
Equations, geometry, trigonometry, and more.
Percentage Calculator
Percent of a number, percent change, and more.
Explore →Fraction Calculator
Add, subtract, multiply, or divide fractions.
Explore →Triangle Calculator
Area, perimeter, and angles from three sides.
Explore →Circle Calculator
Radius, diameter, circumference, and area.
Explore →Quadratic Equation Calculator
Solve ax² + bx + c = 0 for real or complex roots.
Explore →Statistics Calculator
Mean, median, mode, range, and standard deviation.
Explore →Logarithm Calculator
Log to any base, plus ln, log10, and log2.
Explore →Number Base Converter
Convert binary, octal, decimal, and hexadecimal.
Explore →Exponent & Root Calculator
Powers and nth roots of any number.
Explore →Trigonometry Calculator
Sine, cosine, and tangent of any angle.
Explore →Degrees ↔ Radians Converter
Convert angles between degrees and radians.
Explore →Area of Shapes Calculator
Area of squares, rectangles, triangles, circles, and more.
Explore →Volume of Shapes Calculator
Volume of cubes, boxes, cylinders, spheres, and cones.
Explore →Linear Equation Solver
Solve ax + b = cx + d for x.
Explore →Scale Calculator
Convert distances using a map or model scale ratio.
Explore →Weighted Average Calculator
Weighted average from value-weight pairs.
Explore →Pace Calculator
Pace per km, per mile, and speed from distance and time.
Explore →Factorial Calculator
Calculate n! for any non-negative integer.
Explore →GCD & LCM Calculator
Find the GCD and LCM of two numbers.
Explore →Prime Factorization Calculator
Find the prime factors of any number.
Explore →Combinations & Permutations Calculator
Calculate nCr and nPr for any n and r.
Explore →2x2 Matrix Calculator
Add, subtract, or multiply 2x2 matrices.
Explore →Vector Calculator (2D)
Sum, difference, dot product, and angle between 2D vectors.
Explore →Distance Between Two Points Calculator
Find the distance between two (x, y) points.
Explore →Midpoint Calculator
Find the midpoint between two (x, y) points.
Explore →Slope Calculator
Find the slope and line equation from two points.
Explore →Arithmetic Sequence Calculator
Find the nth term and sum of an arithmetic sequence.
Explore →Geometric Sequence Calculator
Find the nth term and sum of a geometric sequence.
Explore →Probability Calculator
Find P(A and B), P(A or B), and P(not A).
Explore →Right Triangle Calculator
Solve a right triangle using the Pythagorean theorem.
Explore →Rounding Calculator
Round a number to decimal places or significant figures.
Explore →Ratio Simplifier
Simplify any ratio to its lowest terms.
Explore →Wavelength & Frequency Calculator
Convert between wavelength and frequency for any wave.
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