# Length

## <img src="https://3375153115-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F5uhW8FwQpXQj8tHUULMo%2Fuploads%2FK8rKgxqmaW2cn0enACfx%2FANALYZE_MEASURE_LENGHT.png?alt=media&#x26;token=b8876f44-4078-4d99-a5fd-d62935f9f67b" alt="" data-size="line"> Length

The Length command reports the length of curves or edges.

### **Supported input:**&#x20;

* Curves
* Mesh/SubD edges

When multiple objects are selected, the accumulated length is displayed in the command history.

Cumulative length is calculated from all curves in a group unless using Ctrl+Shift+click to select group members separately.

Group members that are hidden or on hidden layers will not be calculated.

### Command-line options

**Units:** Set the units for the length display.

**SubCrv:** Type subcrv to select part of a curve as input.

For more information, please refer to the [Rhino documentation](https://docs.mcneel.com/rhino/8/help/en-us/commands/length.htm).