2D Geometry Calculators — Mathematics
Plane figures and their properties: area of rectangles, annuli and crescents, chord length, centroid and centre of mass. If you know a shape’s dimensions but not which area formula fits, the general area calculator lists the shape families it covers.
All 2D Geometry Calculators
Calculate annulus area with inputs, formulas, and instant results.
Calculate area with inputs, formulas, and instant results.
Calculate area of crescent with inputs, formulas, and instant results.
Calculate center of mass with inputs, formulas, and instant results.
Calculate centroid with inputs, formulas, and instant results.
Calculate chord length with inputs, formulas, and instant results.
Calculate conic sections with inputs, formulas, and instant results.
Calculate cross sectional area with inputs, formulas, and instant results.
Calculate cycloid with inputs, formulas, and instant results.
Calculate data set analyzer with inputs, formulas, and instant results.
Calculate ellipse with inputs, formulas, and instant results.
Calculate golden rectangle with inputs, formulas, and instant results.
Calculate moment of inertia with inputs, formulas, and instant results.
Calculate octagon with inputs, formulas, and instant results.
Calculate orthocenter with inputs, formulas, and instant results.
Calculate pentagon with inputs, formulas, and instant results.
Calculate perimeter with inputs, formulas, and instant results.
Calculate polygon with inputs, formulas, and instant results.
Calculate quadrilateral with inputs, formulas, and instant results.
Calculate shoelace formula polygon area with inputs, formulas, and instant results.
Calculate triangle inequality theorem with inputs, formulas, and instant results.
Calculate triangular prism with inputs, formulas, and instant results.
About 2D Geometry Calculators
Plane figures and their properties: area of rectangles, annuli and crescents, chord length, centroid and centre of mass. If you know a shape’s dimensions but not which area formula fits, the general area calculator lists the shape families it covers.
Whether you need to solve a one-time problem or verify your own calculations, these free tools cover the most common 2d geometry scenarios. All results are computed in your browser — no data is sent to any server.
What You Can Calculate
This section includes 22 tools: Annulus Area Calculator, Area Calculator, Area of Crescent Calculator, Center of Mass Calculator, Centroid Calculator, Chord Length Calculator, Conic Sections Calculator, Cross Sectional Area Calculator, and 14 more. Each calculator is free to use with no signup required.