Triangle Calculator
Solve a triangle from any valid combination of sides and angles — SSS, SAS, ASA, AAS, or SSA.
Calculators and explainers tagged under Math.
Solve a triangle from any valid combination of sides and angles — SSS, SAS, ASA, AAS, or SSA.
Paste a list of numbers to get mean, median, mode, range, and standard deviation instantly.
Compute probabilities of single events, joint events, and complements using basic probability rules.
Convert a fraction (numerator / denominator) into its decimal value and a percentage.
Compute range, max height, and flight time for a projectile launched at an angle.
Solve ax² + bx + c = 0 with real or complex roots, showing the discriminant along the way.
Generate one or more random integers in a chosen range, with optional uniqueness and optional sorting.
Find the slope of the line through two points, plus the line equation in slope-intercept form.
Find the greatest common factor (also called GCD) of any list of whole numbers using the Euclidean algorithm.
Solve for a missing term in a proportion, simplify ratios, or scale one ratio up or down.
Calculates the greatest common divisor and least common multiple of two positive integers.
Convert any percentage into its decimal equivalent and an exact fraction (n / 10000) so you can simplify it by hand.
Convert any decimal — terminating or repeating — into its simplest fraction form with a short explanation.
Solve every common percentage question — "what is X% of Y", "X is what percent of Y", and percentage change.
Linearly interpolate (or extrapolate) the value of y at a target x given two known points (x₁, y₁) and (x₂, y₂).
Counts the number of trailing zeros in n factorial using the standard Legendre formula based on factors of 5.
Volume and surface area of a sphere from radius or diameter.
Count the significant figures in a number and round it to a chosen number of significant figures with optional scientifi...
Every "X% of Y" problem, every "what percent of", every percent-change question — written out the way you'd actually say them.