Geometry & Planimetry

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 circumference directly from diameter without manual division. Ideal for engineering, pipe fitting, and fabrication. Supports...

Calculate the arc length of a circle sector using radius and angle. Visual geometry tool with...

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 the altitude of a right triangle relative to the hypotenuse or legs. Features geometric theorem...

Compute the unknown leg (cathetus) of a right triangle using the Pythagorean theorem. Features step-by-step working...

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...

Instantly calculate the altitude of any triangle using Base/Area or Heron's Formula for 3 sides. Visualizes...

Calculate angles from sine values with a dynamic unit circle visualization. Essential tool for triangulation, wave...

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...

Calculate the length of angle bisectors and the segments they divide the opposite side into. Includes...

High-precision Arccos calculator for engineering and physics. Convert cosine values to degrees and radians instantly with...

Calculate angles from slope ratios or opposite/adjacent sides. Features a specialized 'Slope Percentage to Angle' converter...