Dog Crate Size Calculator
A crate that's too small is uncomfortable and stressful for your dog, while one that's too large can undermine house training. Enter your dog's adult weight, or a nose-to-tail-base measurement for a more precise fit, to get a recommended crate size below.
Find the right crate size for your dog
Enter your dog's adult weight, or their nose-to-tail-base length for a more precise fit.
Measure from the nose to the base of the tail, not including the tail itself.
Enter your dog's weight or length above to get a crate size recommendation.
Recommended products
A few well-reviewed crates and dog accessories.

- Rubber
- Chewing & enrichment
- All Life Stages
Currently unavailable
Pros
- Durable natural rubber recommended by vets and trainers
- Perfect for stuffing with KONG treats
- Unpredictable bounce for games of fetch
Cons
- Strong chewers can eventually wear the tip

- Nylon
- Walking & training
- Adult
£14.99
Pros
- Front-clip design discourages pulling on walks
- Quick-snap shoulder and belly straps for easy fitting
- Covers medium to large dog sizes in one listing
Cons
- Sizing runs small — check the chart before ordering

£26.42
Pros
- Length adjusts via carabiner from around 1.1m to 2m
- Robust nylon webbing with reflective stitching
- Comfortable padded handle for everyday walks
Cons
- No shock-absorbing bungee section for strong pullers
Frequently asked questions
How much room does a dog need in a crate?
A properly fitted crate should let your dog stand up fully, turn around comfortably, and lie down stretched out — but shouldn't be so large that they can use one end as a bathroom while sleeping in the other, which can slow down house training.
Should I size a crate for my puppy or their adult size?
Size for their expected adult weight where possible, and use a crate divider panel to reduce the usable space while they're small. This avoids buying multiple crates as they grow, while still keeping the space appropriately sized during house training.
Is it better to measure my dog or go by breed weight?
A direct nose-to-tail-base measurement gives the most accurate fit, especially for mixed breeds or dogs that are unusually long or short-legged for their weight. Breed weight charts are a reasonable estimate when you don't have a tape measure to hand.
What crate height do I need?
As a rule of thumb, add around 5-8cm to your dog's standing shoulder height. Most crate manufacturers list height alongside length for each size, so check both against your dog's measurements.
How this calculator works
This calculator uses a tiered approach based on your dog’s weight, primarily. We then apply breed-specific guidelines where available, acknowledging that individual dogs can vary significantly. The calculation takes into account the minimum internal height, width and depth required for a comfortable fit – these are derived from Kennel Club recommendations for each breed as a starting point.
The calculator outputs crate dimensions in centimetres (cm) and cubic metres (m³). It’s important to note that this provides a guideline; factors such as your dog's body shape, sleeping position, and personal preferences will also play a role. Always prioritise your dog’s comfort and adjust the size accordingly if needed.
Breed Size Guide (UK)
- **Small Breeds (Under 10kg):** Generally, crates between 75cm x 60cm x 60cm are suitable. This provides enough space for smaller breeds like Chihuahuas and Cavalier King Charles Spaniels.
- **Medium Breeds (10-25kg):** A good starting point is a crate around 90cm x 70cm x 70cm, adequate for breeds such as Border Collies and Cocker Spaniels. Larger dogs may need up to 120cm in height.
- **Large Breeds (26-45kg):** Consider crates measuring approximately 110cm x 80cm x 80cm or larger – suitable for breeds like Labrador Retrievers and German Shepherds. Remember, a growing puppy will require a crate that can accommodate their future size.
- **Giant Breeds (Over 45kg):** These dogs need significant space; aim for crates at least 130cm x 90cm x 90cm or greater, fitting breeds like Great Danes and Irish Wolfhounds. Larger crates often require a raised bed for optimal comfort.
- **Working Breeds:** Working breeds (e.g., German Shepherds, Border Collies) may benefit from slightly larger dimensions to accommodate their more muscular builds.
Worked example: Labrador Retriever
Let’s calculate the ideal crate size for a typical 25kg Labrador Retriever. Using the calculator, we input the dog's weight and select ‘Labrador Retriever’. The result is an internal height of 85cm, width of 75cm and depth of 75cm. This equates to approximately 0.46 m³ – a good size for a dog of this stature.
Considering the Labrador’s build, we would recommend a crate measuring around 90cm x 80cm x 80cm to ensure comfortable movement and prevent feeling cramped. You can find suitable crates on Amazon UK ranging from £60 to £150 depending on materials and features – look for solid wood or durable plastic options.
More questions answered
How accurate is the calculator?
The calculator provides a good starting point, but it’s based on averages. Your dog’s individual size and build will significantly impact their comfort. Always prioritise your dog's comfort and adjust the crate size if necessary.
What if my dog is between two breeds?
If your dog has characteristics of multiple breeds, consider using the larger measurement range for the breed with the most significant influence on its size. It’s better to err on the side of a slightly larger crate than one that's too small.
How do I measure my dog?
Measure your dog's height from the floor to the top of their shoulder blades while they are standing. Also, measure around their chest at its widest point and add approximately 5-10cm for comfort. Use a soft measuring tape for accuracy.
Can I use this calculator if my dog is a puppy?
Yes, you can! However, puppies grow quickly. Start with the smaller end of the range recommended by the calculator and monitor your puppy’s growth carefully. Be prepared to upgrade to a larger crate as they mature.
What materials are best for a dog crate?
Solid wood is a durable and aesthetically pleasing option, while plastic crates are easier to clean. Consider the crate's stability and whether it includes features like a removable floor panel for easy cleaning.
Should I buy a crate with a divider?
Dividers can be useful for separating areas within the crate or for puppies. However, make sure the divider doesn’t significantly reduce the overall space available to your dog.
How do I introduce my dog to their new crate?
Make the crate a positive experience by associating it with treats and toys. Start with short periods inside the crate and gradually increase the time spent there. Never use the crate as punishment.
What if my dog doesn't seem comfortable in the crate?
Observe your dog’s behaviour closely. If they show signs of anxiety or distress, try adding bedding, toys, or a familiar scent to make them feel more secure.
Can I use this calculator for multiple dogs?
While the calculator can be used for multiple dogs of similar sizes, it's best to provide each dog with their own crate to ensure they have enough space and personal comfort. Consider a larger crate if housing two small dogs.
Where can I buy a dog crate after using this calculator?
You can find a wide selection of dog crates on Amazon UK, ranging in price from approximately £40 for basic plastic models to over £300 for high-end wooden or multi-tiered options. Be sure to check customer reviews before making your purchase.