Measure, Distance, and Area commands not giving correct values

Issue:
You use the Measure, Distance, or Area command and get a value that is not correct

Causes:

This problem is usually because you have items at different Z elevations, and are using Object Snaps (OSNAPS) to select start and end points with different Z Values

Example
A linear dimension between the two points (red circle) shows 6.000 units


However, when I use the distance command between them, I get this:
Specify first point:
Specify second point or [Multiple points]:
Distance = 6.7082,  Angle in XY Plane = 0,  Angle from XY Plane = 27
Delta X = 6.0000,  Delta Y = 0.0000,   Delta Z = 3.0000

This is because the right square is at a Z elevation of 3, and the left square is at a Z elevation of 0

Solution:
If you are using OSNAPS, then your best bet is to turn off the OSNAPZ:
OSNAPZ:
Controls whether object snaps are automatically projected onto a plane parallel to the XY plane of the current UCS at the current elevation.

Value    Description
0        Osnap uses the Z -value of the specified point
1        Osnap substitutes the Z -value of the specified point with the elevation (ELEV) set for the current UCS 

This is NOT saved, so each time you open a new drawing or close and re-open AutoCAD, you will need to change this value back  

About the Author

Ryan Wunderlich

Sr. Technical Support Specialist<br><br>An AutoCAD Certified Professional, Ryan is responsible for taking client cases and assisting with issues with the software - everything from regular glitches to software deployments and whatever else goes wrong. He's proficient in AutoCAD (including customization), VBA, LISP, and Civil 3D.

Follow on Linkedin More Content by Ryan Wunderlich
Previous Video
See What's New in Autodesk AutoCAD 2022
See What's New in Autodesk AutoCAD 2022

AutoCAD 2022 is here! In this 1 hour video IMAGINiT expert Ryan Wunderlich takes us on a tour of the many ...

Next Video
The Basics of Being a CAD Manager
The Basics of Being a CAD Manager

CAD managers are critical members of most design and engineering firms. But what skills are required to bec...

AutoCAD Tips
Sept 16
11 AM Eastern

Register for Free