# INSUNITS System Variable [GstarCAD 2026](Help%20System/GSTARCAD/2026/Index.md) → [System Variables](Help%20System/GSTARCAD/2026/System%20Variables/(System%20Variables).md) **Function Description:** The INSUNITS system variable is used to set the drawing unit for automatic scaling when inserting or attaching a block, image or external reference to a drawing. | | | | --- | --- | | Type | Integer | | Saved in | Drawing | | Initial value | 1 (Imperial) or 4(Metric) | | Range | 0 ~ 20 | The INSUNITS setting is ignored when inserting annotative blocks into drawing. **System Variable Value:** **0:** unspecified(no units) **1:** inches **2:** feet **3:** miles **4:** millimeters **5:** centimeters **6:** meters **7:** kilometers **8:** micro inches **9:** mils **10:** yards **11:** angstroms **12:** nanometers **13:** microns **14:** decimeters **15:** dekameters **16:** hectometers **17:** gigameters **18:** astronomical units **19:** light years **20:** parsecs --- [Original help](https://www.gstarcad.net/help/GstarCAD_2026_en-US/detail/systemVariables/INSUNITS.html) · © Gstarsoft Co., Ltd.