Explore Geometry tools with clear inputs, worked examples and downloadable results.
Choose a tool for the specific result you need. This collection brings together Affine Point Transformation, Annulus Area Calculator, Arc Length Calculator.
64 tools
Apply a two-dimensional affine map and inspect its area scale and orientation.
GeometryOpen tool ↗Calculate annulus area with labeled inputs, explicit units and the formula A = π(R² − r²).
GeometryOpen tool ↗Calculate arc length with labeled inputs, explicit units and the formula s = πrθ / 180.
GeometryOpen tool ↗Express a point as three triangle weights to inspect its location relative to the triangle.
GeometryOpen tool ↗Estimate the sag, total arc length and end slope of a symmetric mathematical catenary.
GeometryOpen tool ↗Calculate circle area with labeled inputs, explicit units and the formula A = πr².
GeometryOpen tool ↗Calculate circle chord length with labeled inputs, explicit units and the formula c = 2r sin(θ/2).
GeometryOpen tool ↗Calculate circle circumference with labeled inputs, explicit units and the formula C = 2πr.
GeometryOpen tool ↗Calculate the shared lens area and common chord where two circles partially overlap.
GeometryOpen tool ↗Calculate circle sector area with labeled inputs, explicit units and the formula A = πr²θ / 360.
GeometryOpen tool ↗Locate the center and radius of the unique circle passing through three noncollinear points.
GeometryOpen tool ↗Find a circular segment’s area, chord width and central angle from its radius and height.
GeometryOpen tool ↗Calculate closed cone surface area with labeled inputs, explicit units and the formula A = πr[r + √(r²+h²)].
GeometryOpen tool ↗Calculate closed cylinder surface area with labeled inputs, explicit units and the formula A = 2πr(r+h).
GeometryOpen tool ↗Calculate cone frustum volume with labeled inputs, explicit units and the formula V = πh(R²+Rr+r²)/3.
GeometryOpen tool ↗Calculate a cone aperture’s solid angle and the fraction of a sphere it covers.
GeometryOpen tool ↗Calculate cone volume with labeled inputs, explicit units and the formula V = πr²h/3.
GeometryOpen tool ↗Calculate cuboid space diagonal with labeled inputs, explicit units and the formula d = √(l²+w²+h²).
GeometryOpen tool ↗Calculate cuboid surface area with labeled inputs, explicit units and the formula A = 2(lw + wh + lh).
GeometryOpen tool ↗Calculate cuboid volume with labeled inputs, explicit units and the formula V = length × width × height.
GeometryOpen tool ↗Locate a point on a rolling-circle cycloid and evaluate its parametric tangent.
GeometryOpen tool ↗Calculate cylinder volume with labeled inputs, explicit units and the formula V = πr²h.
GeometryOpen tool ↗Calculate ellipse area with labeled inputs, explicit units and the formula A = πab.
GeometryOpen tool ↗Find an ellipse’s focal offset, eccentricity and latus rectum from its major and minor semi-axes.
GeometryOpen tool ↗Measure the shortest spherical surface route and straight chord between two latitude-longitude positions.
GeometryOpen tool ↗Measure a circular helix’s length, rise, curvature and torsion from radius, pitch and turns.
GeometryOpen tool ↗Find focal distance, eccentricity and asymptote slope for a horizontal hyperbola.
GeometryOpen tool ↗Find the nearest point on a finite line segment, including endpoint cases.
GeometryOpen tool ↗Locate the focus and directrix of a vertical parabola and calculate its focal chord width.
GeometryOpen tool ↗Calculate parallelogram area with labeled inputs, explicit units and the formula A = bh.
GeometryOpen tool ↗Find the acute angle between planes and a direction vector for their intersection line.
GeometryOpen tool ↗Compare the volumes of four regular Platonic solids sharing one edge length.
GeometryOpen tool ↗Map a planar point through a geometric inversion circle while preserving its radial direction.
GeometryOpen tool ↗Find the perpendicular distance and closest point from a coordinate to an infinite line.
GeometryOpen tool ↗Project a three-dimensional point onto a plane and measure its perpendicular distance.
GeometryOpen tool ↗Rotate a planar point counterclockwise around a chosen center.
GeometryOpen tool ↗Calculate pyramid volume with labeled inputs, explicit units and the formula V = base area × height / 3.
GeometryOpen tool ↗Evaluate a point and tangent on a quadratic Bézier curve from three control points.
GeometryOpen tool ↗Calculate signed area and perimeter from four consecutive boundary coordinates.
GeometryOpen tool ↗Calculate rectangle area with labeled inputs, explicit units and the formula A = width × height.
GeometryOpen tool ↗Calculate rectangle diagonal with labeled inputs, explicit units and the formula d = √(width² + height²).
GeometryOpen tool ↗Calculate rectangle perimeter with labeled inputs, explicit units and the formula P = 2(width + height).
GeometryOpen tool ↗Mirror a three-dimensional point across a plane given by its coefficients.
GeometryOpen tool ↗Calculate regular polygon area with labeled inputs, explicit units and the formula A = ns² / [4 tan(π/n)].
GeometryOpen tool ↗Calculate regular polygon interior angle with labeled inputs, explicit units and the formula θ = 180(n−2)/n.
GeometryOpen tool ↗Calculate rhombus area from diagonals with labeled inputs, explicit units and the formula A = d₁d₂/2.
GeometryOpen tool ↗Calculate right triangle missing leg with labeled inputs, explicit units and the formula b = √(c² − a²).
GeometryOpen tool ↗Measure the shared volume and intersection-circle radius of two partially overlapping spheres.
GeometryOpen tool ↗Calculate sphere surface area with labeled inputs, explicit units and the formula A = 4πr².
GeometryOpen tool ↗Calculate sphere volume with labeled inputs, explicit units and the formula V = 4πr³/3.
GeometryOpen tool ↗Measure a sphere cap’s volume, curved surface and base radius from cap height.
GeometryOpen tool ↗Convert a spherical position to Cartesian coordinates with explicit polar-angle conventions.
GeometryOpen tool ↗Calculate spherical excess and surface area from three angles on a chosen sphere.
GeometryOpen tool ↗Calculate torus volume with labeled inputs, explicit units and the formula V = 2π²Rr².
GeometryOpen tool ↗Calculate trapezoid area with labeled inputs, explicit units and the formula A = (a+b)h/2.
GeometryOpen tool ↗Calculate triangle area with labeled inputs, explicit units and the formula A = base × perpendicular height / 2.
GeometryOpen tool ↗Calculate triangle area from three sides with labeled inputs, explicit units and the formula A = √[s(s−a)(s−b)(s−c)], s = (a+b+c)/2.
GeometryOpen tool ↗Locate a triangle’s centroid and measure its first median from three vertex coordinates.
GeometryOpen tool ↗Find the inscribed and circumscribed circle radii of a triangle from its three side lengths.
GeometryOpen tool ↗Solve a triangle’s remaining side, angles and area from two sides and their included angle.
GeometryOpen tool ↗Calculate the volume and three central cross-sections of an ellipsoid with unequal semi-axes.
GeometryOpen tool ↗Find the unique intersection of two planar lines expressed in coefficient form.
GeometryOpen tool ↗Measure the angle between two planar vectors and project the first onto the second.
GeometryOpen tool ↗Calculate a three-dimensional cross product and the parallelogram area spanned by two vectors.
GeometryOpen tool ↗No matching tools.