Weight
Sphynx weight chart
The nearly hairless Sphynx is famous for its wrinkled skin, huge ears, and dog-like personality. They crave warmth and human contact, often sleeping under blankets or on laps.
Energetic, intelligent, affectionate, and extroverted.
Adult reference weight is 6 to 12 lb. The breed record lists 10 to 15 years.
Breed record origin is Canada.
How much does a Sphynx weigh?
| Age | Female | Male |
|---|---|---|
| 8 weeks | 2 lb1.6 to 2.5 | 2 lb1.6 to 2.5 |
| 12 weeks | 3.1 lb2.6 to 3.5 | 3.4 lb2.8 to 3.9 |
| 16 weeks | 4.1 lb3.5 to 4.6 | 4.6 lb4.1 to 5.4 |
| 20 weeks | 4.9 lb4.4 to 5.5 | 5.9 lb5.2 to 6.7 |
| 24 weeks | 5.5 lb5.1 to 6.2 | 6.9 lb6.2 to 7.8 |
| 30 weeks | 6.1 lb5.5 to 6.6 | 8.3 lb7.3 to 8.9 |
| 36 weeks | 6.6 lb6 to 7.4 | 8.8 lb7.9 to 9.9 |
| 42 weeks | 6.5 lb5.8 to 7.1 | 9.4 lb8.4 to 10.2 |
| 1 year | 6.7 lb5.9 to 7.7 | 9.5 lb8.3 to 10.8 |
| 15 months | 7.1 lb6.4 to 7.8 | 10.1 lb9.2 to 11 |
| 18 months | 7.3 lb6.4 to 8.6 | 9.9 lb8.8 to 11.4 |
Breed weight ranges are a reference, not a diagnosis. Ask a vet before you treat a number as a problem.
WALTHAM growth curve validated for adult weight 2-7kg (Salt et al. 2022). Pair with BCS checks.
The curve comes from WALTHAM / Salt et al. PLOS ONE 2022 (Liverpool DataCat 1456). WALTHAM dataset
Food
High-calorie diet (30–50 % more than coated cats) due to higher metabolism.
Home
Strictly indoor; needs heated beds, sweaters in winter, and protection from sunburn.
Company
Extremely people-oriented; hates being alone.
Coat
Weekly baths to remove oil buildup; regular ear and nail cleaning.
What tends to stress them
- Cold
- Loneliness
- Dirty skin
Breed risks to mention to a vet
- Hypertrophic cardiomyopathy
- Skin conditions
- Cold sensitivity
A breed risk is not a diagnosis for your cat.
More breed charts
Plants, food, and household hazards
Check your entire room for hidden cat hazards in 10 seconds
Pick a room. These items are in the Borzi reference, and they hide in ordinary houses.
Open in Borzi