Mathematics Calculators (Page 2)
Percentages, equations, geometry, algebra and more math tools.
Percentile Calculator
Find the percentile of a value, or the value at a given percentile.
Combination Calculator (n choose k)
Compute the number of ways to choose k items from n without order.
Permutation Calculator (nPk)
Compute the number of ordered arrangements P(n,k) = n!/(n−k)!.
Speed Calculator
Compute speed = distance ÷ time, or distance/time from speed.
GCD & LCM Calculator
Compute the greatest common divisor and least common multiple of two integers.
Ratio Simplifier
Simplify a ratio to its lowest terms and split a total by it.
Rounding Calculator
Round a value by decimal places or significant figures, with a chosen mode.
Pythagorean Theorem Calculator
Find a missing side of a right triangle (a²+b²=c²).
Quadratic Equation Solver
Enter a, b, c of ax²+bx+c=0 to get roots x₁, x₂, the discriminant Δ, the vertex (h,k) and complex roots, with a parabola chart.
Polynomial Factorization Calculator
Factor quadratics by cross-method and cubics by the factor theorem; apply the remainder theorem for P(k).
Triangle Centers Solver (Incenter / Circumcenter / Centroid / Orthocenter)
Enter the three vertices A, B, C of a triangle to get the incenter, circumcenter, centroid and orthocenter coordinates, plus side lengths, area and a chart.
Sine & Cosine Law Solver
Given AAS, ASA, SAS, SSS or SSA, automatically solve the remaining sides and angles, flagging the SSA ambiguous case (two solutions).