Geometry Calculators: Area, Volume & Angles
Calculate areas, volumes, missing dimensions, triangle angles and slopes. Compare metric and imperial units, inspect labelled diagrams and use worked examples with explicit assumptions.
Cylinder Volume
Calculate cylinder volume or solve a missing dimension, with diagrams and metric/imperial outputs.
Cone Volume
Calculate cone volume or solve a missing dimension, with diagrams and metric/imperial outputs.
Sphere Volume
Calculate sphere volume or solve a missing dimension, with diagrams and metric/imperial outputs.
Pyramid Volume
Calculate pyramid volume or solve a missing dimension, with diagrams and metric/imperial outputs.
Rectangular prism Volume
Calculate rectangular prism volume or solve a missing dimension, with diagrams and metric/imperial outputs.
Solid Volume
Calculate solid volume or solve a missing dimension, with diagrams and metric/imperial outputs.
Tank Volume
Calculate full capacity and partial fill for horizontal or vertical cylinders and rectangular tanks.
Rectangle
Solve rectangle dimensions and diagonal, with area, perimeter and a practical layout squaring example.
Slope
Calculate signed rise/run, gradient, directed angle and a point-slope equation with a displacement graph.
Rectangle Area
Calculate rectangle area from measured dimensions, with unit conversions, a schematic diagram and a worked example.
Circle Area
Calculate circle area from measured dimensions, with unit conversions, a schematic diagram and a worked example.
Ellipse Area
Calculate ellipse area from measured dimensions, with unit conversions, a schematic diagram and a worked example.
Trapezoid Area
Calculate trapezoid area from measured dimensions, with unit conversions, a schematic diagram and a worked example.
Kite Area
Calculate kite area from measured dimensions, with unit conversions, a schematic diagram and a worked example.
Regular Polygon Area
Calculate regular polygon area from measured dimensions, with unit conversions, a schematic diagram and a worked example.
Room Area
Calculate room area from measured dimensions, with unit conversions, a schematic diagram and a worked example.
Triangle
Solve triangle sides, angles and area from known measurements. Includes a labelled diagram, unit conversions and explicit handling of ambiguous solutions.
Right triangle
Solve triangle sides, angles and area from known measurements. Includes a labelled diagram, unit conversions and explicit handling of ambiguous solutions.
Circle, arc and chord calculator
Solve radius, circumference, arc, chord, sagitta, sector and circle-equation centre.
Curve length calculator
Measure polylines or integrate quadratic and cubic Bezier curve length from coordinates.
Angle calculator
Find angles between rays, a missing triangle angle or regular-polygon angles.
Four-square court layout
Plan court sides, quadrants, marking width and entered clearance for a four-square ball-game court.