# DIMALTTD System Variable [GstarCAD 2020](Help%20System/GSTARCAD/2020/Index.md) → [System Variables](Help%20System/GSTARCAD/2020/System%20Variables/(System%20Variables).md) → [D](Help%20System/GSTARCAD/2020/System%20Variables/D/(D).md) **Function Description:** The DIMALTTD system variable is used to set the number of decimal places for tolerance in the alternate units of a dimension. | | | | --- | --- | | Type | Integer | | Saved in | Drawing | | Initial value | 2 (Imperial) or 3 (Metric) | --- ## Other versions with matching text [GstarCAD 2016](../../../2016/System%20Variables/D/DIMALTTD%20System%20Variable--65e979bd7f48.md) · [GstarCAD 2017](../../../2017/System%20Variables/D/DIMALTTD%20System%20Variable--65e979bd7f48.md) · [GstarCAD 2018](../../../2018/System%20Variables/D/DIMALTTD%20System%20Variable--65e979bd7f48.md) · [GstarCAD 2019](../../../2019/System%20Variables/D/DIMALTTD%20System%20Variable--65e979bd7f48.md) · [GstarCAD 2021](../../../2021/System%20Variables/D/DIMALTTD%20System%20Variable--65e979bd7f48.md) · [GstarCAD 2022](Help%20System/GSTARCAD/2022/System%20Variables/D/DIMALTTD%20System%20Variable--65e979bd7f48.md)