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Savannah size
The Savannah is a tall, long-legged breed whose size depends on its generation. Adults weigh about 11–25 lb (5–11 kg), depending on generation and sex, and they can take about 3 years to reach full size. Enter your cat's weight to see how it compares.
You'll see where your cat sits in the usual Savannah range.
Breed ranges are a guide, not a target: a healthy body shape matters more than the number on the scale. Last reviewed October 9, 2026.
How big do Savannahs get?
Breed registries and vet sources don't agree exactly, so here is what each one says about adult weight:
| Source | Males | Females |
|---|---|---|
| Purina | 12–25 lb (all adults) | 12–25 lb (all adults) |
| PetMD (vet reviewed) | 11–20 lb, depending on generation | 11–20 lb, depending on generation |
Based on these figures, the size checker uses 11–25 lb (5–11 kg) for all adults. Ranges a source gives for all adults are shown for reference.
When do Savannahs stop growing?
Purina says a Savannah takes about 3 years to fully mature and reach adult size. Savannahs keep filling out after their first birthday, so a 1-year-old can still be well below its adult weight.
There is no published month-by-month growth chart for Savannah kittens from a breed registry or vet source, so we don't print one. For the first months, compare your kitten with the kitten growth chart, and use the kitten feeding chart to see how much to feed.
Savannah size facts
- PetMD says first-generation (F1) Savannahs average about 16.3 inches tall, and later generations are a little smaller.
- The tallest living domestic cat in Guinness World Records is Fenrir Antares Powers, an F2 Savannah, measured at 47.83 cm (18.83 in) in 2021.
- TICA says Savannahs weigh less than other cats of a similar size; their tall, lean build makes them look heavier than they are.
Savannah size compared with other breeds
| Breed | Males | Females | Full size by |
|---|---|---|---|
| Savannah | 11–25 lb | same range | about 3 years |
| Maine Coon | 12–22 lb | 9–15 lb | 3–5 years |
| Ragdoll | 15–20 lb | 10–15 lb | about 4 years |
| Siberian | 12–20 lb | 8–12 lb | 3–5 years |
| Bengal | 9–18 lb | 6–12 lb | about 2 years |
| British Shorthair | 10–18 lb | 8–15 lb | 3–5 years |
| Norwegian Forest Cat | 10–18 lb | 8–12 lb | up to 5 years |
| Siamese | 8–15 lb | 5–12 lb | about 1 year* |
| Persian | 9–14 lb | 7–11 lb | about 1 year* |
| Sphynx | 8–12 lb | 6–10 lb | about 1 year* |
| Average house cat | 8–12 lb | about 1 year | |
Weights are the overall ranges from the breed sources on each page. *No breed-specific age given; most cats reach adult size at about 12 months. The average house cat weighs about 8–12 lb (PetMD).
Questions people ask
How big do Savannahs get?
Adults weigh about 11–25 lb (5–11 kg), depending on generation and sex, and they can take about 3 years to reach full size.
How much does a Savannah weigh?
Purina gives 12–25 lb and PetMD 11–20 lb, depending on the generation. Early generations such as F1 are the biggest.
When is a Savannah full grown?
Savannahs can take about 3 years to reach full size, according to the breed sources above. Most of the growth happens in the first year.
Is my Savannah overweight?
Breed ranges are wide, so check body shape instead: you should be able to feel the ribs easily and see a waist from above. The cat weight calculator uses the 9-point body condition score to estimate your cat's ideal weight.
How much should I feed a Savannah?
Base it on your cat's ideal weight and activity, not the breed. The cat food calculator turns that into calories and cans or cups.
Sources
- Purina: Savannah
- PetMD (vet reviewed): Savannah
- Guinness World Records
- TICA
- PetMD: Average weight of cats