Area Perimeter Calculator Online | Shape Calculator Tool
Free online area perimeter calculator for calculating area and perimeter of various geometric shapes. This comprehensive geometry calculator helps students, engineers, and architects compute areas and perimeters of rectangles, circles, triangles, and other shapes with instant mathematical results for educational and professional applications.
Select Shape
Length (cm)
Width (cm)
Formulas Used:
Area: Length × Width
Perimeter: 2 × (Length + Width)
Typical Use Cases
Our area perimeter calculator online serves students, engineers, and architects working with geometric calculations. Mathematics students use this shape calculator for homework verification, learning geometry concepts, and solving area and perimeter problems with instant mathematical results.
Construction professionals rely on this geometry calculator for material estimation, floor planning, and architectural design calculations. Engineers use this area calculator for structural analysis, land surveying, and technical drawing applications requiring precise geometric measurements.
Supported Shapes
- Rectangle: Area = length × width, Perimeter = 2(length + width)
- Square: Area = side², Perimeter = 4 × side
- Circle: Area = πr², Perimeter = 2πr
- Triangle: Area = ½ × base × height
- Parallelogram: Area = base × height
Key Applications
- Educational geometry learning and homework
- Construction material estimation
- Architectural floor planning
- Land surveying and area measurement
- Engineering design calculations
- Arts and crafts project planning