# DIMDEC System Variable [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [System Variables](Help%20System/GSTARCAD/2021/System%20Variables/(System%20Variables).md) → [D](Help%20System/GSTARCAD/2021/System%20Variables/D/(D).md) ## Function Description: The DIMDEC system variable is used to set the number of decimal places in main units for dimensions. | | | | --- | --- | | Type | Integer | | Saved in | Drawing | | Initial value | 4 (Imperial) or 2 (Metric) | The precious is based on selected units or angle formats. The specified value will be applied on angular dimension when the DIMDEC system variable set to be -1. --- ## Other versions with matching text [GstarCAD 2016](../../../2016/System%20Variables/D/DIMDEC%20System%20Variable.md) · [GstarCAD 2017](Help%20System/GSTARCAD/2017/System%20Variables/D/DIMDEC%20System%20Variable.md) · [GstarCAD 2018](Help%20System/GSTARCAD/2018/System%20Variables/D/DIMDEC%20System%20Variable.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/System%20Variables/D/DIMDEC%20System%20Variable.md) · [GstarCAD 2020](Help%20System/GSTARCAD/2020/System%20Variables/D/DIMDEC%20System%20Variable.md) · [GstarCAD 2022](Help%20System/GSTARCAD/2022/System%20Variables/D/DIMDEC%20System%20Variable.md)