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Kitchen · Sizing

Bakeware Sizes Explained

By the Nest & Yard editorial teamUpdated 2026-08-093 min read

Our pick: the MasterClass Large Baking Tray, Scratch Resistant Vitreous Enamel and Induction Safe, 1mm Thick Steel, 39 x 27cm, Black — the best Bakeware we tested, from £21.44.

Choosing the right bakeware can make all the difference to your baking success – and whether you’re happy with the space it takes up in your kitchen. Understanding how sizes are described and what those measurements actually mean is key before investing in new trays, tins, or dishes. This guide will help you decipher the sizing information available on Amazon UK, considering options like Pyrex glass sets, MasterClass steel pans, and Wilton cake tins, to find the perfect fit for your household and baking needs.

See the full range in Bakeware.

Planning ahead? Try our free Cake Tin Size Converter
Pyrex Classic 2 Piece Rectangular Glass Baking Roasting Dish Set

#1 Pick

Pyrex Classic 2 Piece Rectangular Glass Baking Roasting Dish Set
Rated 4.7 out of 5 stars (3,389)
  • Glass
  • Clear

Currently unavailable

Pros

  • Borosilicate glass resists thermal shock in the oven
  • Doubles up for roasting and everyday baking
  • Dishwasher, microwave and freezer safe

Cons

  • Glass is heavier and more fragile than a metal tray
Check on Amazon →
MasterClass Large Baking Tray, Scratch Resistant Vitreous Enamel and Induction Safe, 1mm Thick Steel, 39 x 27cm, Black
Editor's Choice

#2 Pick

MasterClass Large Baking Tray, Scratch Resistant Vitreous Enamel and Induction Safe, 1mm Thick Steel, 39 x 27cm, Black
Rated 4.7 out of 5 stars (3,204)
  • Baking and roasting
  • Vitreous Enamel Steel

£21.44

Pros

  • Vitreous enamel coating resists scratches and staining
  • Large 39 x 27cm size suits full trays of roast veg or bakes
  • Induction safe steel core heats evenly

Cons

  • Heavier than a basic aluminium tray
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HaWare Baking Tray Set of 2, Stainless Steel Oven Sheet Pans
Best Value

#3 Pick

HaWare Baking Tray Set of 2, Stainless Steel Oven Sheet Pans
Rated 4.6 out of 5 stars (3,200)
  • Stainless Steel
  • Silver

£19.49

Pros

  • Rust-resistant stainless steel construction
  • Two trays give flexibility for batch baking or roasting
  • Easy-clean surface, dishwasher safe

Cons

  • No non-stick coating, benefits from parchment paper for sticky bakes
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Wilton Cupcake/Muffin Baking Tin, Recipe Right, Non-Stick, 12 Holes
Best Budget

#4 Pick

Wilton Cupcake/Muffin Baking Tin, Recipe Right, Non-Stick, 12 Holes
Rated 4.7 out of 5 stars (2,600)
  • Steel
  • Grey

£14.39

Pros

  • One-piece cast aluminium construction for even bakes
  • 12 holes suit a full batch of cupcakes or muffins
  • Non-stick coating releases bakes cleanly

Cons

  • Hand wash recommended to protect the non-stick finish over time
View on Amazon →

FAQ

What do you mean by 'diameter' when talking about cake tins?

Diameter refers to the width across the widest part of the tin, measured through the centre. This is crucial for ensuring your cake batter spreads evenly and doesn’t overflow during baking.

Why are some loaf pans labelled with their internal volume in litres rather than dimensions?

Internal volume (in litres) represents the space available for rising dough; a larger litre size typically indicates a bigger pan suitable for more substantial loaves like sourdough or brioche.

How do I measure my oven space when choosing a roasting tin?

Measure the internal dimensions of your oven, accounting for the rack height, to ensure the tin fits comfortably and allows sufficient space around it for heat circulation.

What's the difference between a 9-inch and a 10-inch cake tin?

A 9-inch tin has a diameter of approximately 22.86cm, while a 10-inch tin measures around 25.4cm; this difference impacts the size of cakes you can bake.

I’m making small batches – what size muffin tin should I buy?

A standard 12-cup muffin tin is ideal for smaller batches, allowing you to make approximately 12 individual muffins or mini loaves without overcrowding the tin.

My kitchen is quite compact. Which sizes of cake tins would be most practical?

Considering space constraints, a 6-inch or 8-inch round cake tin and a 9x13 inch rectangular tin are generally good choices for smaller households.

What does 'deep' mean when referring to baking dishes?

'Deep' refers to the height of the dish, usually measured from the base to the rim; deeper dishes are better suited for recipes like lasagne or casseroles.

How accurate are the measurements on a baking tin itself?

Measurements on baking tins themselves are typically nominal – expect slight variations of up to 1cm, so always double-check with supplied specifications if possible.

Should I buy tins that match each other for consistency?

While not essential, having a set of matching tins makes it easier to scale recipes up or down consistently and ensures uniform baking results.

What's the best way to measure my hob if buying a large roasting tin?

Measure the diameter of your largest hob surface – typically gas or electric – to confirm that the tin will comfortably fit without obstructing controls or burners.

In depth

Bakeware sizes can feel incredibly confusing at first glance. Manufacturers use a variety of terms – “small,” “medium,” “large” – but these don’t always translate directly to usable dimensions in your kitchen. Understanding the nuances behind these labels and how they relate to your available space is key to avoiding disappointment when you finally receive your new baking equipment. The most common confusion stems from differing interpretations of what constitutes ‘small’, ‘medium’, or ‘large’ across brands, rather than a universal standard.

The terms “18cm,” “20cm,” and “23cm” are incredibly frequent on bakeware, referring to the *internal* diameter of round cake tins and similar vessels. It's absolutely crucial to grasp that this measurement denotes the space available for your baked goods, not the overall external dimensions of the tin itself. A 20cm tin will have a significantly larger footprint – including the sides – than a 20cm diameter pan. Similarly, an “18cm round” isn’t simply 18 centimetres across; it's the distance across the circular base of the tin. When comparing tins, always focus on this internal diameter to ensure they will comfortably accommodate your recipe requirements and produce cakes that fit nicely within your cake stands or serving dishes.

Consider the size of your household when choosing bakeware. A single person or couple cooking for themselves occasionally might find a set containing primarily 18cm and 20cm round tins, coupled with a small loaf tin (around 20cm x 10cm), perfectly adequate. This provides flexibility for smaller cakes, muffins, and basic bread recipes. However, if you regularly bake for larger families or frequently host gatherings, investing in larger capacities – 23cm and 26cm round tins, alongside a substantial loaf tin (around 30cm x 15cm) and perhaps even a rectangular baking tray (approximately 33cm x 24cm) – will be far more practical. Don’t underestimate the demand for larger cakes when entertaining; a single 23cm tin simply won't cut it if you're making a celebration cake or feeding ten guests.

A frequent oversight among home bakers is assuming that 'large' always equates to ‘big’. Some manufacturers use "large" to describe tins with an internal diameter of 26cm or 28cm, which would be considered a substantial size for many kitchens. Carefully check the actual dimensions before purchasing, especially if you’re limited on counter space or storage. Furthermore, consider the overall shape of your baking trays and tins; rectangular trays are generally more efficient in terms of space usage than round ones when stacking or storing.

When assessing your kitchen space, measure carefully. Don't just think about the width of the tin itself – account for the sides that will be filled with batter. A 23cm round tin, for example, requires considerably more storage space than a simple 23cm diameter circle suggests. Also, consider how you’ll be using the equipment: if you primarily bake cakes and cupcakes, investing in multiple smaller tins is often preferable to one large tin, as it allows for greater versatility. Finally, remember that many bakeware sets are designed with stacking in mind, so choosing a set where tins fit together efficiently will optimise your storage space.

Finally, pay close attention to the dimensions of any additional accessories you might purchase alongside your bakeware – such as baking mats, cooling racks, or wire baskets. These items can significantly impact your available workspace and should be factored into your overall purchasing decision. A well-organised kitchen is a happy kitchen, and careful measurement of both your space and your equipment will ensure that your baking endeavours are smooth, efficient, and successful.

The Nest & Yard editorial team

Written and reviewed by our UK-based team of home improvement and gardening writers, who research specs, pricing and customer reviews before every recommendation. Reviewed and updated on 2026-08-09.

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