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32 calculators
Find the arithmetic mean of a comma-separated list of numbers.
Calculate circumference and area from a circle radius.
Calculate combinations nCr: the number of ways to choose r items from n when order does not matter.
Calculate cone volume, slant height and total surface area from radius and vertical height.
Calculate the volume and total surface area of a right circular cylinder.
Convert a terminating decimal to a reduced fraction and mixed number.
Calculate straight-line distance between two points on a 2D coordinate plane.
Add, subtract, multiply or divide two fractions and reduce the result to lowest terms.
Find the greatest common factor (greatest common divisor) of two or more whole numbers.
Find the least common multiple of two or more whole numbers.
Find the mean, median, mode and range of a list of numbers.
Find the midpoint between two points on a coordinate plane.
Find the cumulative probability below, above or between values in a normal distribution.
Calculate percentage increase or decrease from an original value to a new value.
Calculate symmetric percent difference between two values without treating either one as the original value.
Calculate percent error between an experimental or measured value and an accepted value.
Solve common percentage questions: find a percentage of a number, determine what percent one number is of another, and calculate a value from a known percentage.
Calculate permutations nPr: the number of ordered arrangements of r items chosen from n.
Break a positive whole number into its prime factors.
Calculate the probability of one event, its complement, and simple independent AND/OR combinations.
Solve a proportion of the form a/b = c/d when one of the four values is unknown.
Find the hypotenuse of a right triangle from the two perpendicular side lengths.
Solve a quadratic equation in the form ax² + bx + c = 0 and identify real or complex roots.
Simplify a ratio of two whole numbers to lowest terms.
Calculate area, perimeter and diagonal of a rectangle from length and width.
Solve a right triangle from two side lengths and find the hypotenuse, angles, area and perimeter.
Convert a number to normalized scientific notation and evaluate a coefficient times a power of ten.
Find the slope of the line through two coordinate points.
Calculate the volume and surface area of a sphere from its radius.
Calculate mean, variance and standard deviation for a sample or an entire population.
Calculate triangle area using a base and perpendicular height.
Calculate a z-score from a value, mean and standard deviation.