Pet Travel Crate Size Calculator

Choosing the right crate size is important for both your pet’s comfort and safety — especially for air travel.

IATA (International Air Transport Association) sizing rules: A crate must be large enough for the animal to:

1. Stand with its head fully upright (no neck bending)
2. Turn around completely
3. Lie down in a natural position

Minimum crate dimensions (IATA formula):

• Length: Nose to tail base + half the length of front legs (approx. body length × 1.1)
• Width: Shoulder width × 2
• Height: Floor to top of head (when standing)

Standard crate size categories:

• XS: Up to 50 cm long — toy breeds, cats under 3 kg
• S: 50–61 cm — small dogs (Chihuahua, Yorkshire Terrier), average cats
• M: 61–76 cm — medium dogs (Beagle, Cocker Spaniel)
• L: 76–91 cm — large dogs (Labrador, Border Collie)
• XL: 91–107 cm — very large dogs (German Shepherd, Rottweiler)
• XXL: 107–122 cm — giant breeds (Great Dane, Saint Bernard)

Airline cabin vs hold:

• Cabin (in-cabin): Pet + carrier must fit under the seat (usually max 43 × 23 × 27 cm, combined weight ~8 kg)
• Hold (checked): IATA hard-shell crate required, no fabric carriers

For car travel: A crate 10–15 cm larger than the IATA minimum gives your pet more comfort on long drives.