1. ## Converting CAD drawing from inches to millimetres

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Hey guys

I'm about to start working on a project. My boss sent me an AutoCAD floor plan. However it's in inches. I've used the dimension tool to see how big the drawing is and it's in inches. How do i convert it back to MM?

Many thanks
Tara

2. To convert inches to millimeters, multiply the number of inches by 25.4 and make sure to set your units to decimal.

3. Originally Posted by ReMark
To convert inches to millimeters, multiply the number of inches by 25.4 and make sure to set your units to decimal.
Hey there ReMark, thank you for helping out again [=
aww i was hoping there would be an easier way to do it.. like select all the lines and change the options.. somehow.. i know i'm living in fairy land *sighs*

an easier way to do it.. like select all the lines and change the options.. .
Sounds like your describing Scale to me?

5. Originally Posted by JD Mather
Sounds like your describing Scale to me?
yes sorry i failed to mention that.
Basically the drawing was done in the US, so it's all in inches.
My brain doesn't process inches. I only know how to work with millimeters on autocad
and as it's a big project i really don't want sit here and work out what the dimension of every line is.
any tips on how to make this any easier?
Thank you

6. Originally Posted by ReMark
To convert inches to millimeters, multiply the number of inches by 25.4 and make sure to set your units to decimal.
sorry to bother you again...i'm still unsure how to do this...
for example.. i have a line which is 488''
so to work it out i have to go ... 488*25.4= 12395.2
so that's like.. 12metres 395mm ?
is that correct?
Thanks

sorry to bother you again...i'm still unsure how to do this...
for example.. i have a line which is 488''
so to work it out i have to go ... 488*25.4= 12395.2
so that's like.. 12metres 395mm ?
is that correct?
Thanks

I think ReMark meens that you use the command SCALE then select everything in the drwaing and type the scale 25.4 and it blows the whole drawing op till 25.4 times bigger.

8. Originally Posted by Oppie

I think ReMark meens that you use the command SCALE then select everything in the drwaing and type the scale 25.4 and it blows the whole drwaing op till 25.4 times bigger.
omg.. i feel so retarded. You are a life saver!
well thank you for explaining that, it worked!
the dimension tool seems to work in inches for some reason. any ideas on how to fix that?

9. just type the command UNITS then choose in chapter lenght decimal and insertion scale milimeters

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Originally Posted by Oppie
just type the command UNITS then choose in chapter lenght decimal and insertion scale milimeters
Thank you so much [=
it seems to work fine now
Have a lovely day

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