Dog Crate Size Calculator
Estimate comfortable internal kennel dimensions from your dog's standing length and height.
About choosing the right dog crate size
Dog crate size examples
| Dog measurements | Suggested internal crate | Shopping note |
|---|---|---|
| 20 in long, 16 in high | 24 x 18 x 20 in | Choose the next standard size at least this large. |
| 30 in long, 24 in high | 34 x 25.5 x 28 in | Verify interior rather than package dimensions. |
| 40 in long, 32 in high | 44 x 33 x 36 in | Allow extra ear and bedding clearance if needed. |
How to size a dog crate
- Have the dog stand naturally on a level surface.
- Measure from nose tip to tail base, then from the floor to the highest point of the head or ears.
- Enter both measurements and select Calculate Crate Size.
- Choose a standard crate with internal dimensions at least as large as the estimate.
- Confirm that the dog can stand, turn around, and lie down naturally before regular use.
Dog crate size FAQ
How much extra room should a dog crate have?
A few inches beyond the dog's body measurements usually allows natural movement without excessive empty space. This calculator adds four inches to measured length and height as a practical starting allowance.
Should I include the tail in the length?
Measure from the nose to the base of the tail rather than the tail tip. A long tail can curl or rest naturally and should not determine the full crate length.
What if the calculated size is not sold?
Choose the next standard size whose internal dimensions meet or exceed the estimate. Check actual interior measurements because listed dimensions may describe the outside of the crate.
Can I buy an adult crate for a puppy?
Yes, a safe fitted divider can reduce the usable area during house training and move as the puppy grows. Recheck measurements regularly because growth rates vary.
Is this size suitable for airline travel?
Not necessarily, because airlines and destinations impose additional clearance and construction rules. Confirm every requirement directly with the carrier before travel.