Diecast Scale Guide: What Size Is Each Scale?

Diecast scale tells you how many times smaller a model is than the real vehicle. A 1:18 model is one eighteenth of full size — so the bigger the second number, the smaller the model. Here is what each scale in our catalog means in practice.

Scale size chart

Scale	Typical car model length*	Best for
1:12	~15 in / 37 cm	Large centerpiece display models with maximum detail
1:18	~10 in / 25 cm	The classic showcase size — opening doors, detailed interiors
1:24	~7.5 in / 19 cm	Display presence without the shelf space of 1:18
1:32	~5.5 in / 14 cm	Compact display models
1:43	~4 in / 10.5 cm	The classic European collector standard — big themed collections
1:64	~2.75 in / 7 cm	The collector staple ("matchbox size") — affordable, easy to collect in volume
1:87	~2 in / 5 cm	HO scale — matches HO model railway layouts

*Based on a typical passenger car of roughly 4.5 m (177 in). Trucks and larger vehicles scale up accordingly.

Aircraft scales

Aircraft models use their own conventions: 1:72 is the classic military-aviation scale (a fighter jet comes out around 8–10 in), while airliners are usually 1:200 (~14 in for a typical narrow-body) or 1:400 (~7 in) — compact enough to build a whole fleet.

Which scale should you collect?

There is no wrong answer — most collectors settle on one or two scales so their shelf looks consistent. If you want maximum detail for the money, go 1:18. If you want variety and volume, go 1:64. If you run a model railway, 1:87 vehicles will match your layout perfectly.

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