I look up o scale cars and see selections but say if I’m out toys r us or a store. What scale is O. I see some 1:64 scale 1:8 etc. what scale ratio is actuall O
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True O scale is 1/48. 1/64 is S gauge.
Thanks
Some members of this Forum mark the back of a paper card with ticks at 1 1/2, 2 and 2 1/2 inches from an end. Six feet for the height of a man, eight feet for the width of a highway truck and ten feet for the width of a flat car. Carried in their wallet and used when in Toys R Us or any other store, flea market, etcetera when they come across something for their layout. John in Lansing, ILL
Years ago a forum member took a photo of about six "6' men" figures, as a side-by-side comparison, that were sold as "O" scale. Every brand (MTH, Arttista, Preiser, etc.) was a different height. My personal view is that Arttista is good all 'round, but the smaller MTH sitting figures are the best for passenger car interiors.
If you mean vehicles (like die cast) 1:43 is also very common and looks fine if not mixed with 1:48 or 1:50 in the same space. Just depends on how peticular you are with your layout. Personally I have vehicles mixed and Im ok with it. 
-Nick
Carry an Arttista figure with you; use it as a reference
rattler21 posted:Some members of this Forum mark the back of a paper card with ticks at 1 1/2, 2 and 2 1/2 inches from an end. Six feet for the height of a man, eight feet for the width of a highway truck and ten feet for the width of a flat car. Carried in their wallet and used when in Toys R Us or any other store, flea market, etcetera when they come across something for their layout. John in Lansing, ILL
Great suggestion which is easily implemented. I just did so. Thanks for the tip!
-Greg
Thanks guys great info. I’m gonna do the paper
I'm running Marx 027 and use mostly 1/64 die cast cars, but have some I use up close that are 1/43 and 1/48, a few of no particular scale, at least three that are 1/50 and a few 1/72, and 1/87 that are way to the back.
For choosing vehicles you need to look at the package or the bottom of the automobile or truck.
O scale is 1:48th scale so you will have to look for 1:43rd scale or 1:50th scale. There are very few 1:48th scale autos and trucks.
Lionel O gauge and S scale is 1:64th scale.
Andrew
