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Just another modeller
Joined
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9,983 Posts
*** OO isn't a scale, it is a gauge - the distance between the tracks.

The scale for "OO" is 4mm to one foot or close enough to 1:76. So just divide the actual real world measurement by 76.

Richard
 
G

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Hiya

Since you are going to need a calculator to do the maths may as well use the proper numbers. 4mm scale is 1 to 76.2 not 1 to 76. If your real world measurement is in feet just times by 4 and you have the measurement in mm.

HTH

Jim
 

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Dragon Trainer
Currently residing at Dragon’s Edge, living on The Edge! 😀
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1,300 Posts
A very basic conversion table. (Well, I can understand it!
)

Actual...........................4mm/foot "OO"

12 inches..............................4mm

9 inches................................3mm

6 inches................................2mm

3 inches................................1mm

1 1/2 inches.........................1/2 mm
 

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Totally Crazy.......
Joined
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684 Posts
Hiya,

I use expo tools scale rulers, Ive got one for each scale ................... Its the easiest method !! you can get them from Expo tools and antics sell them online...

Here is the link for you..

http://www.expotools.co.uk/1149_1_1197857.html

They are only £4.00 so id suggest buying one !!!

Hope this helps

Nikki
 
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