📐 Math

％ Percentage Calculator Find what percent a number is of another, or a percentage of a value. 🔢 Matrix Calculator Add, subtract, multiply, transpose, and find the determinant or inverse of a matrix. 🔬 Scientific Calculator A full scientific calculator with trigonometry, logarithms, powers, roots, factorial and memory. 🔢 Big Number Calculator Add, subtract, multiply, divide and power huge whole numbers with unlimited precision. ➗ Long Division Calculator with Steps Divide two numbers and see every long-division step, with the quotient and remainder. 🔀 Percentage Change Calculator Calculate the percentage increase or decrease between two numbers. 📎 Average Calculator Find the mean, sum and count of a list of numbers. ➗ Ratio Calculator Simplify ratios and solve for a missing value. 🔷 Area Calculator Calculate the area of a rectangle, circle or triangle. ½ Fraction Calculator Add, subtract, multiply or divide two fractions. 📐 Triangle Calculator Find a triangle's area from base and height, or from three sides. 🧊 Volume Calculator Calculate the volume of a box, sphere, cylinder or cone. σ Standard Deviation Calculator Calculate mean, variance and standard deviation of a data set. ⭕ Circle Calculator Calculate area, circumference and diameter from the radius. 🔢 Exponent Calculator Raise a number to any power. √ Root Calculator Find the square root or any nth root of a number. 🔗 GCF & LCM Calculator Find the greatest common factor and least common multiple. ⚠️ Percent Error Calculator Calculate the percent error between measured and true values. 📊 Mean, Median, Mode Calculator Find the mean, median, mode and range of a data set. 📐 Pythagorean Theorem Calculator Find the hypotenuse of a right triangle from its two legs. 📍 Distance Calculator (2 points) Find the distance between two points on a plane. 🧮 Logarithm Calculator Calculate the logarithm of a number in any base. 📈 Slope Calculator Find the slope and equation of a line through two points. 🔟 Rounding Calculator Round a number to a chosen number of decimal places. 🔣 Prime Factorization Calculator Break a number down into its prime factors. ❗ Factorial Calculator Calculate the factorial (n!) of a number. ➗ Quadratic Formula Calculator Solve a quadratic equation ax² + bx + c = 0. 🔀 Permutation & Combination Calculator Calculate permutations (nPr) and combinations (nCr). 📈 Z-Score Calculator Calculate the z-score of a value in a normal distribution. 🎲 Probability Calculator Calculate the probability of an event as a percentage and odds. 🔬 Scientific Notation Converter Convert a number to and from scientific notation. 🔢 Number Sequence Calculator Find the nth term and sum of an arithmetic sequence. 🔢 Factor Calculator List all the factors (divisors) of a number. 📊 Confidence Interval Calculator Calculate the confidence interval for a sample mean. 👥 Sample Size Calculator Find the sample size needed for a survey. 🧊 Surface Area Calculator Calculate the surface area of a box, sphere or cylinder. 📐 Right Triangle Calculator Solve a right triangle from its two legs. 📊 Statistics Calculator Get full statistics for a data set: mean, median, SD and more. ☢️ Half-Life Calculator Calculate how much of a substance remains after decay. ⚖️ Proportion Calculator Solve a proportion a/b = c/x for the unknown value. 🔢 Geometric Sequence Calculator Find the nth term and sum of a geometric sequence. 📉 P-value Calculator Find the p-value from a z-score. 🔟 Number Base Converter Convert numbers between binary, octal, decimal and hex. 📐 Trigonometry Calculator Find sine, cosine and tangent of an angle. ➗ Modulo Calculator Find the remainder when one number is divided by another. ➗ Long Division Calculator Divide two numbers and get the quotient and remainder. 🔢 Significant Figures Calculator Round a number to a chosen number of significant figures. ½ Decimal to Fraction Calculator Convert a decimal number into a simplified fraction. ⚖️ Weighted Average Calculator Calculate the weighted average of values with weights. ➡️ Vector Calculator (2D) Find the magnitude and direction of a 2D vector. 🔢 Prime Number Checker Check whether a number is prime. 📏 Perimeter Calculator Calculate the perimeter of a rectangle, circle or triangle. ✖️ Simultaneous Equations Solver Solve a system of two linear equations in two variables. 📍 Midpoint Calculator Find the midpoint between two points. 📐 3D Distance Calculator Find the distance between two points in 3D space. ➗ Linear Equation Solver Solve a linear equation of the form ax + b = c.