Gross Floor Area Calculator Gross Floor Area Calculator Toggle Dark Mode Input Parameters Gross Floor Area (m²) Unit Square meters (m²) Square feet (ft²) Square yards (yd²) Acres Hectares Calculation Method Use Preset Manual Input Building Type Preset Office Building Residential Hospital Retail Circulation: 25% Structural: 15% Services: 10% Enter Percentages Circulation (%) Structural (%) Services (%) Calculate Enter parameters and click "Calculate" to see results Results Area Distribution Area Comparison Category Area (m²) Percentage Export Results Download CSV Print/PDF Shareable Link Copy