Mathematical Calculators

Enter Annulus Dimensions Outer Radius (R) Radius of the larger circle. Inner Radius (r) Radius of the smaller, concentric circle.

c²=a²+b²-2ab cos(C) a b c C Choose what to solve for: Angle A (given Sides a, b, c – SSS)Angle

Calculate properties of regular polygons (n-gons). Number of Sides (n) Known Parameter: Side Length (s)Inradius / Apothem (r)Circumradius (R)Area (A)Perimeter

Calculate area, perimeter, diagonals, angles, and more. Calculate using: Diagonals (p, q)Side (s) and Diagonal (p)Side (s) and Diagonal (q)Side

Unit for all dimensions (radii, height): Centimeters (cm)Meters (m)Inches (in)Feet (ft)Millimeters (mm)Yards (yd) Large Radius (R): Small Radius (r): Height

R R Calculate By: Radius (R)Volume (V)Curved Surface Area (CSA)Base Surface Area (BSA)Total Surface Area (TSA) Select property to input,