# QUICKCALC Command [GstarCAD 2020](Help%20System/GSTARCAD/2020/Index.md) → [Commands](Help%20System/GSTARCAD/2020/Commands/(Commands).md) → [Q](Help%20System/GSTARCAD/2020/Commands/Q/(Q).md) The QUICKCALC command is used to open the QUICKCALC dialog box. ## Command Access: > **Ribbon:** View \> Palettes \> QUICKCALC > **Menu:** Tools \> Palettes \> QuickCalc > **Command:** QUICKCALC > **Shortcut:** right-click and select "Quickcalc" > **Shortcut:** CTRL\+8 ## Function Description: Users could use it to perform a variety of math, science, and geometric calculation, as well create and use variables and convert measurement units. ![](Help%20System/GSTARCAD/2020/assets/GCAD_GCR/images/QUICKCALC-1.png) ## Other versions with matching text [GstarCAD 2016](../../../2016/Commands/Q/QUICKCALC%20Command.md) · [GstarCAD 2017](../../../2017/Commands/Q/QUICKCALC%20Command.md) · [GstarCAD 2018](Help%20System/GSTARCAD/2018/Commands/Q/QUICKCALC%20Command.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/Commands/Q/QUICKCALC%20Command.md) · [GstarCAD 2021](Help%20System/GSTARCAD/2021/Commands/Q/QUICKCALC%20Command.md)