Chihuahua Full Grown: Up to 6 lb Adult Weight & Height
Adult Chihuahuas weigh up to 6 lb (up to 2.7 kg) and stand 5–8 in at the shoulder. Most reach adult size at 6–8 months. Here is the full chart with sources.
Chihuahua adult weight and height
| Sex | Weight | Height at shoulder |
|---|---|---|
| All | up to 6 lb (up to 2.7 kg) | 5–8 in (13–20 cm) |
Most Chihuahuas reach their adult size at 6–8 months; larger dogs keep filling out for longer.
Estimate your puppy’s adult weight from its current age and weight.
Also: Chihuahua Lifespan: 14–16 Years and What Affects It
Sources
- Chihuahua — AKC (September 23, 2026)
- Chihuahua Dog Breed Health and Care — PetMD (vet-reviewed) (September 23, 2026)