Diecast Model Car Scales Explained: 1:18 vs 1:24 vs 1:43 (and More)

If you’re new to collecting, the numbers on a diecast model box can be baffling. Is a 1:18 car bigger or smaller than a 1:43? Why are some F1 cars 1:24 and others 1:18? And which scale is right for your shelf, your budget and your collection?

This guide explains how diecast model car scales work, how big each one really is, and what each scale does best, using real models from the CarModelZone collection so you can see the difference for yourself.

What Does a Scale Like 1:18 Actually Mean?

A scale is simply a ratio. A 1:18 model is 18 times smaller than the real car, so every centimetre on the model represents 18 centimetres on the full-size vehicle. The bigger the second number, the smaller the model: a 1:43 car is much smaller than a 1:18 car.

To work out how long a model will be, divide the length of the real car by the scale. A typical 4.5-metre sports car works out at about 25 cm in 1:18, 19 cm in 1:24 and just over 10 cm in 1:43. Bigger cars make bigger models, so a 1:18 limousine or Formula 1 car will be noticeably longer than a 1:18 hatchback.

Diecast Scales at a Glance

Sizes below are approximate, based on a typical 4.5-metre car.

Scale	Approx. length	Best for
1:12	37 cm	Statement centrepieces with exceptional detail
1:16	28 cm	Large display pieces, often vintage
1:18	25 cm	The collector’s favourite: detail, opening parts and presence
1:24	19 cm	Great value, classic F1 and a good balance of size and detail
1:25	18 cm	A traditional American kit scale, close to 1:24
1:32	14 cm	Slot cars and racing sets
1:43	10.5 cm	Building a big collection, rare and limited editions
1:64	7 cm	Pocket-sized fun and huge collections

1:18 Scale: The Collector’s Favourite

If one scale defines serious diecast collecting, it’s 1:18. At around 25 cm long, a 1:18 model is big enough to show off real detail: a recognisable engine under the bonnet, a fully trimmed interior, accurate wheels and badging. Many 1:18 models have opening doors, bonnets and boots, and steerable front wheels.

Quality ranges from affordable brands like Bburago and Maisto up to premium makers such as AUTOart, Minichamps and Cult Models. Some high-end 1:18 models are made from sealed resin rather than diecast metal: they have no opening parts, but they allow sharper body detail and rarer subjects.

Examples from our collection: the Bburago 1:18 Ferrari F80, the Bburago 1:18 Jaguar E-Type Cabriolet and the Cult Models 1:18 Saab 900 Turbo.

Choose 1:18 if you want each model to be a centrepiece and you have the shelf space to show it off.

1:24 Scale: The Sweet Spot

At around 19 cm long, 1:24 models still have plenty of presence but take up noticeably less room than 1:18. They’re often more affordable too, which makes 1:24 a great scale for building a themed collection without needing a dedicated room to display it.

1:24 also has a special place in Formula 1 collecting. Bburago’s classic 1:24 F1 range from the 1980s and 1990s covered many of the greatest cars and drivers of the era, and boxed examples are now sought-after vintage collectables.

Examples from our collection: the Bburago 1:24 Ferrari 12Cilindri, the Bburago 1:24 Lotus 99T Ayrton Senna and the Maisto 1:24 Lamborghini Urus.

Choose 1:24 if you want a good balance of detail, size and value, or you collect classic F1.

What About 1:25?

1:25 is a traditional American model kit scale that sits very close to 1:24. The difference is only a few millimetres, so 1:24 and 1:25 models sit happily together on the same shelf. Our Maisto 1:25 Volkswagen T1 ‘Samba’ Van is a good example.

1:43 Scale: The Classic Collector’s Scale

At roughly 10 cm long, 1:43 models are small enough to fit dozens on a single shelf, which is exactly why this scale has long been the favourite of European collectors. It’s the scale for building a comprehensive collection: every Le Mans winner, every car a driver raced, or every version of a favourite model.

Don’t let the small size fool you. Specialist makers such as Minichamps, Spark and Ixo produce beautifully detailed 1:43 models, often in limited numbers and of cars that are never made in larger scales. Most are sealed, display-only models, usually supplied in a clear case.

Examples from our collection: the Spark 1:43 Pagani Zonda C12 S, the Minichamps 1:43 Lamborghini 350 GT and the 1:43 March 881 driven by Ivan Capelli.

Choose 1:43 if you want to build a large collection, love rare and limited-edition subjects, or are short on space.

Bigger Scales: 1:16 and 1:12

At around 28 cm, a 1:16 model is a real presence on any shelf. The scale is less common today, which makes vintage 1:16 pieces from makers like Polistil all the more collectable. We currently stock the Polistil 1:16 Ferrari 288 GTO and the Polistil 1:16 Jaguar E-Type.

1:12 models go further still: at roughly 37 cm long, they’re true centrepieces with extraordinary detail. They’re also expensive and need a lot of space, so most collectors own just one or two as the highlight of their display.

Smaller Scales: 1:32 and 1:64

1:32 is the classic scale of slot car racing, used by makers such as Scalextric and Carrera. At around 14 cm, these cars are built to be raced rather than just displayed, but the best of them are detailed enough to sit in a collection too. Try the Carrera 1:32 James Bond Aston Martin V12 Vanquish or the Fly 1:32 Venturi 500 Le Mans.

1:64 is the pocket-sized scale made famous by Hot Wheels and Matchbox. At around 7 cm long, these cars are affordable, fun and easy to collect in huge numbers. Mass-market 1:64 cars are often only approximately to scale, adjusted to fit standard packaging, while premium ranges are increasingly detailed. Read more in our post on Hot Wheels’ 1:64 Ferrari Heritage models.

How to Choose the Right Scale

• Measure your display space first. A shelf that holds four 1:18 models might hold ten 1:43s.
• Decide what matters most. For opening parts and engine detail, go 1:18. For the widest choice of rare subjects, go 1:43.
• Stick to one scale per theme. Mixing scales in the same display can make cars look oddly sized next to each other. Many collectors keep, say, their F1 cars in 1:43 and their road cars in 1:18.
• Check the subject is available. Popular cars come in every scale, but many rare and historic cars are only made in 1:43.
• Think about who it’s for. Sealed and resin models are for display only. For a younger enthusiast, a robust 1:24 or 1:64 model may be a better choice.

Find Your Scale at CarModelZone

Whether you’re after a single show-stopping 1:18 model or a growing row of 1:43 classics, our shop stocks models from 1:16 down to 1:43 across road cars, Formula 1, rally and touring cars. Every order is packed by hand and ships free within the UK.

Not sure which scale is right for you, or looking for a particular model? Email us at info@carmodelzone.com. We’re collectors too, and we’re always happy to help.