Geometry Calculators
Related calculations are grouped together so you do not have to open several nearly identical tools.
Popular calculators
4 tools2D Shape CalculatorCalculate area and perimeter for common 2D shapes from one calculator.3D Shape CalculatorCalculate volume and surface area for common 3D solids from one calculator.Circle CalculatorEnter radius and angle once to calculate diameter, circumference, circle area, sector area and arc length.Advanced Triangle SolverSolve triangles from SSS or SAS inputs and return missing angles, area, perimeter and consistency checks.
More calculators
23 toolsTriangle Area (Heron's Formula)Use the Triangle Area (Heron's Formula) to get a fast estimate with a clear formula and result.Circle DiameterUse the Circle Diameter to get a fast estimate with a clear formula and result.Semicircle AreaUse the Semicircle Area to get a fast estimate with a clear formula and result.Ellipse AreaUse the Ellipse Area to get a fast estimate with a clear formula and result.Parallelogram AreaUse the Parallelogram Area to get a fast estimate with a clear formula and result.Trapezoid AreaUse the Trapezoid Area to get a fast estimate with a clear formula and result.Rhombus AreaUse the Rhombus Area to get a fast estimate with a clear formula and result.Kite AreaUse the Kite Area to get a fast estimate with a clear formula and result.Sector AreaUse the Sector Area to get a fast estimate with a clear formula and result.Arc LengthUse the Arc Length to get a fast estimate with a clear formula and result.Rectangular Prism Surface AreaUse the Rectangular Prism Surface Area to get a fast estimate with a clear formula and result.Cylinder Surface AreaUse the Cylinder Surface Area to get a fast estimate with a clear formula and result.Cone Surface AreaUse the Cone Surface Area to get a fast estimate with a clear formula and result.Sphere Surface AreaUse the Sphere Surface Area to get a fast estimate with a clear formula and result.Hemisphere VolumeUse the Hemisphere Volume to get a fast estimate with a clear formula and result.Pyramid VolumeUse the Pyramid Volume to get a fast estimate with a clear formula and result.Frustum VolumeUse the Frustum Volume to get a fast estimate with a clear formula and result.Torus VolumeUse the Torus Volume to get a fast estimate with a clear formula and result.Regular Polygon AreaUse the Regular Polygon Area to get a fast estimate with a clear formula and result.Regular Polygon Interior AngleUse the Regular Polygon Interior Angle to get a fast estimate with a clear formula and result.Pythagorean Theorem CalculatorUse the Pythagorean Theorem Calculator for a fast estimate with clear inputs, formula guidance and related tools.Area CalculatorUse the Area Calculator for a fast estimate with clear inputs, formula guidance and related tools.Volume CalculatorUse the Volume Calculator for a fast estimate with clear inputs, formula guidance and related tools.