# Measure tool
The measure tool can be used to measure perimeters and areas between points on the map.
# New measurement
To create a new measurement, select the measure tool in the map screen.
# Measure perimeters
By clicking on the map screen, you create a new point. Create a line or polyline by adding more points. The associated length will appear in the alternate bar on the right.
# Measure areas
To measure an area, create a polygon by joining the last point to the first point in the shape. The area between points will be shaded in blue on the map and the area measurement will appear in the sidebar.
# Measurement between features
You can calculate the distance or area between features by selecting the features of a layer as points with the measurement tool. Measurement points situated on features will always appear as red dots.
# Clear measurement
Start a new measurement by clicking Clear all then selecting your new points.
# Change measurement color
Customize the color of each measurement by dragging the associated color bar. To view more color options, click the palette icon at the top of the alternate bar marked below.
Each measure card will expand to include a canvas and RGB inputs for further customizing color. The arrows on the right toggle between RGB, HSL and hex color inputs.
# Measurement tool in 3D mode
The measurement tool can be utilized in 3D mode to measure within and between features. Measure points can only be added on top of features. When dragging a point on the map its location will snap to that of the nearest feature.
The measure card in the alternate bar will include 3D, geodesic and vertical separation length. As shown below the 3D lengths will be displayed with solid lines and the geodesic (horizontal) and vertical lengths with dashed lines.
In 3D mode, arbitrary measurements on the ground cannot be made. To make such measurements please return to 2D mode and re-select the measure tool.
# Save, load and share measurements
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Saving, loading and sharing measurements is currently only available for the measure tool in 2D mode.
The measure panel lets you save the measurement you're currently working on, reload it later, and share it with other project members via a URL.
# Save a measurement
- Add at least one point to your measurement.
- In the measure panel, under Saved measurements, click the save icon.
- Give the measurement a name and click Save.
This measurement is now saved for you in this project, and appears under Saved measurements for you to reload later.
# Load a measurement
Under Saved measurements, click the download icon next to the measurement you want to load. If you have unsaved changes to your current measurement, you'll be asked to confirm before they're discarded.
# Rename or update a saved measurement
Once a measurement is loaded, its name appears under Current measurement. Click the pencil icon to rename it.
If you change the points, color, or other properties of a loaded measurement, an orange save icon appears next to its name to indicate unsaved changes. Click it to save your changes back to that measurement.
Note that you can also click the save icon under Saved measurements to save the updated version as a new measurement. The previously-loaded measurement will remain as-is.
# Delete a saved measurement
Click the delete icon next to a saved measurement in the list, then confirm.
# Share a measurement by URL
Once a measurement is has been saved or loaded, its ID is appended to your URL. You may copy this URL and send it to another member of the project you're viewing. When they open this URL, the measurement will load automatically for them.
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Opening a link to a measurement saved by someone else creates your own copy of it. You can rename, edit or delete your copy without affecting theirs.
# Exit measurement tool
Exit the measurement tool by clicking the cross in the top right corner of the alternate bar.
Note that this will clear all current measurements you have made.
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