Home›Geometry & Trig›Perimeter CalculatorPerimeter CalculatorCalculate the perimeter or circumference of geometric shapes.ShapeTriangleSquareRectangleParallelogramTrapezoidCircleEllipseRhombusDimensionsSide ASide BSide CDecimals012345678910Calculate PerimeterRelated ToolsKeep Working With Similar ToolsBrowse Geometry & Trig📐Trigonometry CalculatorGeometry & Trigsin, cos, tan and inverses→📏Distance CalculatorGeometry & TrigDistance between two points→🟦Area CalculatorGeometry & TrigArea of geometric shapes→🧊Volume CalculatorGeometry & TrigVolume of 3D shapes→