📐 Area Calculator Calculate rectangle, circle and triangle areas.
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Shape Rectangle Circle Triangle
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Results are preliminary estimates. Use project-specific specifications, drawings, product data and local requirements for final decisions.
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Calculator guide How this calculator works Rectangle = L×W; Circle = πr²; Triangle = ½×Base×Height
Formula Rectangle = L×W; Circle = πr²; Triangle = ½×Base×Height
Important limitation Use consistent units and convert the result as needed.
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Important: 5iBuild calculations are general estimates. Verify drawings, specifications, product data, local rates and applicable codes or regulations before construction or procurement.