# Create Radial Dimensions [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [User Guide](Help%20System/GSTARCAD/2021/User%20Guide/(User%20Guide).md) → [Dimensions](Help%20System/GSTARCAD/2021/User%20Guide/Dimensions/(Dimensions).md) → [Create Dimensions](Help%20System/GSTARCAD/2021/User%20Guide/Dimensions/Create%20Dimensions/(Create%20Dimensions).md) The radius and diameters of arcs and circles are annotated by Radial dimensions. Optionally centerlines or center marks can be included. DIMRADIUS measures the radius of an arc or circle. ![](Help%20System/GSTARCAD/2021/assets/GCAD_GUG/GCAD_GUG/pic/Dimension%20Radius.jpg) DIMDIAMETER measures the diameter of an arc or circle. ![](Help%20System/GSTARCAD/2021/assets/GCAD_GUG/GCAD_GUG/pic/Dimension%20Diameter.jpg) --- ## Other versions with matching text [GstarCAD 8 (2013–2014)](../../../../2013/User%20Guide/Dimensions/Create%20Dimensions/Create%20Radial%20Dimensions.md) · [GstarCAD 2015](../../../../2015/User%20Guide/Dimensions/Create%20Dimensions/Create%20Radial%20Dimensions.md) · [GstarCAD 2016](../../../../2016/User%20Guide/Dimensions/Create%20Dimensions/Create%20Radial%20Dimensions.md) · [GstarCAD 2017](../../../../2017/User%20Guide/Dimensions/Create%20Dimensions/Create%20Radial%20Dimensions.md) · [GstarCAD 2018](Help%20System/GSTARCAD/2018/User%20Guide/Dimensions/Create%20Dimensions/Create%20Radial%20Dimensions.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/User%20Guide/Dimensions/Create%20Dimensions/Create%20Radial%20Dimensions.md) · [GstarCAD 2020](Help%20System/GSTARCAD/2020/User%20Guide/Dimensions/Create%20Dimensions/Create%20Radial%20Dimensions.md)