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Professional Area Calculator

Calculate the area of geometric shapes including rectangles, circles, triangles, parallelograms, trapezoids, ellipses, and sectors. Professional calculator with unit conversion, visual diagrams, and detailed formulas.

Helpful?

Select Shape

Rectangle Calculator

Shape Diagram

L
W
Rectangle
A quadrilateral with four right angles
Area = Length × Width

Calculated Area

0.00 ft²

Area Calculation Fundamentals

Rectangle & Square
Multiply length by width. For squares, all sides are equal so it's side squared.
Circle & Ellipse
Circles use π × radius². Ellipses use π × both semi-axes multiplied together.
Triangles
Use ½ × base × height for right triangles. Complex triangles may need Heron's formula.

Practical Applications

Construction & Architecture
Calculate floor space, roofing materials, paint coverage, and landscaping areas.
Real Estate & Property
Determine property sizes, room dimensions, and lot areas for valuation and planning.
Engineering & Design
Calculate surface areas for material requirements, load calculations, and manufacturing specifications.

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Professional Area Calculator – Geometric Shape Area Calculations with Unit Conversion

Calculate areas of all geometric shapes with our comprehensive area calculator featuring rectangle, circle, triangle, parallelogram, trapezoid, ellipse, and sector calculations. Whether you need square footage calculations for construction, property measurement, or engineering projects, our platform provides precise area calculations with visual diagrams, unit conversion, and professional reporting tools.

Complete Geometric Shape Analysis

Calculate area measurements for all common geometric shapes using precise mathematical formulas. Our geometry calculator supports rectangles, squares, circles, triangles, parallelograms, trapezoids, ellipses, and circular sectors with visual diagrams and step-by-step calculations. Features include real-time area computation, formula explanations, and measurement validation for accurate results.

Advanced Unit Conversion & Batch Processing

Convert between metric and imperial area units including square feet, meters, acres, hectares, and more. Our tool includes batch calculation capabilities for multiple shapes, file import functionality for large projects, and comprehensive unit conversion tables. Perfect for construction estimating, property measurement, and engineering calculations requiring precise area conversions.

Professional Tools & Export Features

Export detailed area calculations in Excel format with shape diagrams, measurement breakdowns, and formula documentation. Features include visual shape representations, measurement validation, calculation summaries, and professional reporting for architects, engineers, contractors, and property professionals requiring accurate area calculations.

Experience the most comprehensive area calculation platform available online, combining accurate geometric formulas with professional tools and intuitive design. Calculate any shape area with confidence using our feature-rich, mathematically precise area calculator.