Geometry & Shapes Calculators
Geometry calculators for areas, perimeters, volumes, triangles and circles, with proportional diagrams that make the shapes easy to understand.
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Triangle Solver
Visual triangle solving
○
Circle Calculator
Circle measurements visualized
□A
Area & Perimeter
Shape area & perimeter
V³
Volume Calculator
3D shape volume & surface area
c²
Pythagorean Theorem
Right triangle solver
(x,y)
Coordinate Distance & Midpoint
Distance & midpoint on a grid
⬡
Regular Polygon Calculator
Any regular polygon
oval
Ellipse Calculator
Calculate ellipse area, circumference approximation, eccentricity, and foci
trap
Trapezoid Calculator
Solve trapezoid area, height, bases, median, and perimeter
sec
Circle Sector Calculator
Calculate sector area, arc length, chord length, and perimeter
arc
Arc Length Calculator
Solve arc length, radius, or angle for a circular arc