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Inches to metric

Printed From: CAD Forum
Category: EN
Forum Name: AutoCAD
Forum Description: Discussion about AutoCAD and AutoCAD LT, viewers, DWG and DWF formats, Design Review, AutoCAD 360, add-ons
URL: https://www.cadforum.cz/forum_en/forum_posts.asp?TID=12003
Printed Date: 31.May.2026 at 22:15


Topic: Inches to metric
Posted By: waynelem
Subject: Inches to metric
Date Posted: 07.Sep.2016 at 17:27
I have a large facility dwg. that I have created over the last few years. It is in inches and now I need to send it across the pond and they want it in a metric format.
I am at a loss as how to do this.
I am sure this is not hard to change.
Any help?
Wayne


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wayne



Replies:
Posted By: John Connor
Date Posted: 07.Sep.2016 at 18:32
1 inch = 25.4 millimeters.  Do the math then scale your drawing accordingly.



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"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>



Posted By: Robert_D
Date Posted: 07.Sep.2016 at 19:21
Set your UNITS first.


Posted By: John Connor
Date Posted: 07.Sep.2016 at 20:00
Originally posted by Robert_D Robert_D wrote:

Set your UNITS first.


That is not the right command to use.  Actually it would be -DWGUNITS and pick option < 3 > for millimeters.  Accept the default values for everything AutoCAD asks after that and you'll end up with a perfectly scaled metric drawing.  A simple test will confirm the fact.  Start a new drawing using acad.dwt and draw a 10x10 inch box.  Then follow my previous advice.  When done the box should measure 254x254 millimeters.


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"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>



Posted By: philippe JOSEPH
Date Posted: 08.Sep.2016 at 07:44
Hello you can see the Tip N° 7103 here under that explains John's procedure and that also specifies that you should scale your entire file from the point 0,0 ( or 0,0,0 if done in 3D ).



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