ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Core.Geometry Namespace / AreaUnit Class / Acres Property
Example Version

Acres Property
Gets an area unit object representing area in US acres (Factory Code = 109403).
Syntax
public static AreaUnit Acres {get;}
Example
AreaUnit - Convert between hectares and acres
// convert 2 hectares to acres
double acres = AreaUnit.Hectares.ConvertTo(2, AreaUnit.Acres);
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also