Pet Bed Size Calculator
A pet bed that's too small forces your dog or cat to sleep curled up awkwardly, while an oversized one wastes floor space and can feel less cosy. Enter your pet's weight, or a nose-to-tail-base measurement for a more precise fit, below.
Find the right pet bed size
Enter your pet's weight, or their nose-to-tail-base length for a more precise fit.
Enter your pet's weight or length above to get a bed size recommendation.
Recommended products
A few well-reviewed pet beds.
- Fabric & memory foam
- Sleeping & joint support
£149.00
Pros
- Raised bolster edge gives dogs a sense of security
- Removable, machine-washable cover
- Orthopaedic memory foam supports joints
Cons
- Premium price versus a standard fibre-filled bed
£74.99
Pros
- Multiple platforms let cats climb and perch
- Sisal-wrapped posts protect furniture from scratching
- Plush covering is soft and hard-wearing
Cons
- Requires a stable wall or floor space to avoid wobble
£21.99
Pros
- Two-way hood lets pets sleep open or snuggled in
- Soft fleece lining
- Lightweight and easy to move between rooms
Cons
- Less structured support than a raised or bolster bed
Frequently asked questions
How much bigger should a bed be than my pet?
A comfortable bed lets your pet stretch out fully in any direction with a little room to spare — as a guide, add around 15-20cm to their nose-to-tail-base length to find a suitable bed size.
Do cats and dogs need different bed shapes?
Many cats prefer a bed with raised sides or a hooded shape that lets them curl up and feel enclosed, while dogs — especially larger breeds — often prefer a flatter, more open bed with room to stretch out fully.
Should I size a bed for my pet's current size or expected adult size?
For a growing puppy or kitten, sizing for their expected adult size saves buying multiple beds, though a smaller bed can feel more secure for a young or anxious pet in the meantime.
How often should pet beds be replaced?
Most pet beds benefit from replacement every 1-3 years depending on use, material and how well they're cleaned — flattened, lumpy filling no longer provides proper support, particularly for older pets with joint issues.