Pet Carrier Size
Find the minimum carrier dimensions for your pet's size.
About Pet Carrier Size
The pet should stand, turn and lie flat inside, so carrier length allows about 20 percent more than body length. A cramped carrier stresses pets on trips, while an oversized one can slide around and feel unsafe in a vehicle.
Formula
Pet Carrier Size
Length = pet length x 1.2 + 5; width = pet length x 0.6 + 5; height = weight x 3 + 15
- carrierLength
- Longest interior dimension, centered on pet body length
Worked example
With the default values below, Pet Carrier Size returns Carrier Length of 59.0. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Pet weightminimum 0.5 kg
- 8 kg
- Pet length (nose to base of tail)minimum 5 cm
- 45 cm
Results
- Carrier Length
- 59.0 cm
- Carrier Width
- 32.0 cm
- Carrier Height
- 39.0 cm
- Size Class
- Medium
Step by step
- 1Values used
- 2Pet Carrier Size
- 3Carrier Length= 59.0 cm
- 4Carrier Width= 32.0 cm
- 5Carrier Height= 39.0 cm
- 6Size Class= Medium
Assumptions and limits
- The result is derived only from the 2 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 1 decimal place, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Pet Carrier Size calculated?
Length = pet length x 1.2 + 5; width = pet length x 0.6 + 5; height = weight x 3 + 15 The pet should stand, turn and lie flat inside, so carrier length allows about 20 percent more than body length.
Why does Pet Carrier Size matter?
A cramped carrier stresses pets on trips, while an oversized one can slide around and feel unsafe in a vehicle.
What values do I need to enter?
This calculator takes 2 inputs: Pet weight, Pet length (nose to base of tail). The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.