# SCALE Command
[GstarCAD 2027](Help%20System/GSTARCAD/2027/Index.md) → [Commands](Help%20System/GSTARCAD/2027/Commands/(Commands).md) → [S](Help%20System/GSTARCAD/2027/Commands/S/(S).md)
## Function Description:
This command is used to zoom in or zoom out the selected objects and keep the proportions the same during the operation.
Users can specify a scale base point and a scale factor to zoom. The base point is the scaling center that keeps still. The selected object becomes larger when the scale factor is greater than 1 and it is smaller when the value is between 0 and 1.
The base point will keep still, although the selected object has changed its size.
**Note:** On the annotative objects, the SCALE command can scale them relative to the base point, but the dimension of objects is not change.
## Command Access:
> **Icon:** 
> **Menu:** Modify > Scale
> **Ribbon:** Home > Modify > Scale
> **Toolbar:** Modify > Scale
> **Command:** SCALE
> **Alias:** SC
> **Shortcut:** Select the object and right-click, and then click Scale
## Command Prompts:
```
Select object:
Select base point:
Specify scale factor or [Copy/Reference] <1.0000>:
```
## **Scale factor**
Scales the selected objects by a specified scale factor. The selected objects become larger when the value of scale factor is greater than 1 and it is smaller when the value is between 0 and 1. Users can also scale objects by dragging the cursor.
## **Copy**
Creates a copy of the selected objects for scaling.
## **Reference**
Scales the selected objects by a reference length and a specified new length.
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**Related References：**
- [Commands about 3D Selection (GstarCAD 2026)](../../../2026/Commands/00%20Command%20Groups/Commands%20about%203D%20Selection.md)
- [Commands about Resizing Objects (GstarCAD 2026)](../../../2026/Commands/00%20Command%20Groups/Commands%20about%20Resizing%20Objects.md)
**Related Tasks：**
- [To Extend an Object (GstarCAD 2026)](../../../2026/Commands/01%20Procedures/To%20Extend%20an%20Object.md)
- [To Lengthen an Object (GstarCAD 2026)](../../../2026/Commands/01%20Procedures/To%20Lengthen%20an%20Object.md)
- [To Trim an Object (GstarCAD 2026)](../../../2026/Commands/01%20Procedures/To%20Trim%20an%20Object.md)
- [To Chamfer a 3D Solid (GstarCAD 2026)](../../../2026/Commands/01%20Procedures/To%20Chamfer%20a%203D%20Solid.md)
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[Original help](https://www.gstarcad.net/help/GstarCAD_2027_en-US/detail/commandReferences_S/SCALE.html) · © Gstarsoft Co., Ltd.