# PSVPSCALE System Variable
[GstarCAD 2017](Help%20System/GSTARCAD/2017/Index.md) → [System Variables](Help%20System/GSTARCAD/2017/System%20Variables/(System%20Variables).md) → [P](Help%20System/GSTARCAD/2017/System%20Variables/P/(P).md)
**Function Description:**
The PSVPSCALE system variable is used to set scale factors for all new created viewports.
| | |
| --- | --- |
| Type | Real |
| Saved in | Drawing |
| Initial value | 0.0000 |
The viewport scale factor is defined by comparing the drawing units in paper space and new created model space. The viewport scale factor that users set is in use together with VPORTS command. Specifying it to be 0 means scale to fit. A scale must be a positive real value.
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## Other versions with matching text
[GstarCAD 2016](../../../2016/System%20Variables/P/PSVPSCALE%20System%20Variable--ec03eb08f456.md) · [GstarCAD 2018](../../../2018/System%20Variables/P/PSVPSCALE%20System%20Variable--ec03eb08f456.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/System%20Variables/P/PSVPSCALE%20System%20Variable--ec03eb08f456.md) · [GstarCAD 2020](../../../2020/System%20Variables/P/PSVPSCALE%20System%20Variable--ec03eb08f456.md) · [GstarCAD 2021](Help%20System/GSTARCAD/2021/System%20Variables/P/PSVPSCALE%20System%20Variable--ec03eb08f456.md) · [GstarCAD 2022](Help%20System/GSTARCAD/2022/System%20Variables/P/PSVPSCALE%20System%20Variable--ec03eb08f456.md)