Geometry & Planimetry
Calculate properties of 2D shapes. Find the area, perimeter, radius, and angles of triangles, circles, polygons, and trapezoids. Includes Pythagorean theorem solvers.
Calculate hypotenuse length using trigonometry. Supports Degrees and Radians for Adjacent or Opposite legs.
Calculate chord length, sagitta, and arc properties from radius and angle. Features a dynamic SVG diagram...
Calculate the arc length of a circle sector using radius and angle. Visual geometry tool with...
Calculate the length of angle bisectors and the segments they divide the opposite side into. Includes...
Calculate circumference directly from diameter without manual division. Ideal for engineering, pipe fitting, and fabrication. Supports...
Compute the unknown leg (cathetus) of a right triangle using the Pythagorean theorem. Features step-by-step working...
Calculate the Sagitta (arc height) given the Chord Length and Radius. Generates a blueprint-style SVG diagram.
Compute the longest side of a right-angled triangle using the Pythagorean theorem. Features a live equation...
Calculate angles from slope ratios or opposite/adjacent sides. Features a specialized "Slope Percentage to Angle" converter...
Calculate angles from sine values with a dynamic unit circle visualization. Essential tool for triangulation, wave...
Calculate circle circumference instantly using the radius. Features high-precision Pi and variable decimal output for engineering...
Calculate the diagonal of a square instantly. Features visual geometry overlay and area-based reverse calculations for...
Compute the diagonal of any rectangle given width and height. Includes a squaring verification feature for...
Calculate the altitude of a right triangle relative to the hypotenuse or legs. Features geometric theorem...
Determine the altitude of any trapezoid using Area, Sides, or Angles. Supports Isosceles, Right, and Scalene...
Lightning-fast calculator for equilateral triangle height. Features a "Type-and-See" interface and vector-perfect rendering.
Compute the altitude of an isosceles triangle with precision. Handles degenerate cases and provides formulas for...
Calculate dimensions of a regular octagon inscribed within a circle. Solves for Side Length, Inradius (Apothem),...
Calculate the Inradius and Incenter coordinates of a circle inscribed within a triangle using side lengths...
Calculate dimensions for regular hexagons. Essential for machining and bolt sizing, this tool converts between Side...
High-precision Arccos calculator for engineering and physics. Convert cosine values to degrees and radians instantly with...
Instantly calculate the altitude of any triangle using Base/Area or Heron's Formula for 3 sides. Visualizes...
Calculate triangle angles, area, perimeter, heights, medians and radii from three sides using the Law of...
Calculate radius, diameter, circumference, area, arc length, sector and segment area from any circle measurement. Instant...