Chihuahua Weight & Growth Chart

Complete weight guide with growth charts for male and female Chihuahuas from puppy to adult.

Male Adult Weight
3–6 lbs
Female Adult Weight
2–5 lbs

Chihuahua Weight Overview

A fully grown Chihuahua weighs between 3 and 6 pounds. Males range 3–6 lbs; females 2–5 lbs.

The AKC standard specifies under 6 pounds. Most healthy Chihuahuas weigh 3 to 6 pounds, though some may reach 10 pounds or more without being overweight..

Growth Chart

When Does a Chihuahua Stop Growing?

Expect your Chihuahua to reach adult height of 5–8 inches by 12–15 months. Full body maturity—including muscle development toward the 3–6 lb target—may continue until 14–18 months.

Growth is influenced by genetics, nutrition quality, and spay/neuter timing. Their extremely small size brings unique health vulnerabilities including hypoglycemia, fragile bones, and a fontanel that may never close. Dental crowding is nearly universal..

Is My Chihuahua Overweight?

To determine if your Chihuahua is at a healthy weight (3–6 lbs target):

  • Rib test: You should be able to feel the ribs without pressing hard, with a thin layer of fat covering them
  • Waist check: Viewed from above, there should be a visible waist behind the ribs
  • Tuck-up: From the side, the abdomen should tuck up behind the rib cage

Their coat type allows for relatively easy visual assessment. If your Chihuahua is overweight, work with your veterinarian to develop a safe weight loss plan. Even a 10% reduction can reduce the risk of Patellar Luxation and other conditions.

Feeding Recommendation

Feed an adult Chihuahua approximately 0.5–0.1 cups of quality kibble daily, split into two meals. Males (3–6 lbs) may need slightly more than females (2–5 lbs). The AKC standard specifies under 6 pounds. Most healthy Chihuahuas weigh 3 to 6 pounds, though some may reach 10 pounds or more without being overweight.. With moderate energy (3/5), portions at the middle of guidelines usually suffice.

Weight by Age Table

AgeMale (lbs)Female (lbs)
3 months 1.3–1.7 1.1–1.4
6 months 2.9–3.7 2.5–3.1
9 months 4.3–5.3 3.6–4.5
12 months 5.3–6.7 4.5–5.7

Frequently Asked Questions

Adult Chihuahuas weigh 3–6 lbs (males: 3–6 lbs; females: 2–5 lbs). The AKC standard specifies under 6 pounds. Most healthy Chihuahuas weigh 3 to 6 pounds, though some may reach 10 pounds or more without being overweight..
Most Chihuahuas reach adult height of 5–8 inches by 12–15 months, with full body weight of 3–6 lbs achieved shortly after. The AKC standard specifies under 6 pounds. Most healthy Chihuahuas weigh 3 to 6 pounds, though some may reach 10 pounds or more without being overweight..
Use the body condition scoring method: ribs easily felt, visible waist from above, and abdominal tuck from the side. If your Chihuahua exceeds 6 lbs without exceptional muscle mass, they are likely overweight. Obesity is particularly dangerous for this breed due to their predisposition to Patellar Luxation. Your vet can provide a precise assessment and weight loss plan.
Feeding amounts depend on age, current weight, and the Chihuahua's expected adult size of 3–6 lbs. Puppies under 6 months need 3–4 meals daily; older puppies eat twice daily. A high-quality puppy food formulated for small breeds provides the right nutrient balance. Their extremely small size brings unique health vulnerabilities including hypoglycemia, fragile bones, and a fontanel that may never close. Dental crowding is nearly universal..
Poor weight gain in a Chihuahua puppy warrants a vet visit. For a breed that should reach 3–6 lbs at maturity, slow growth can signal parasites (very common in puppies), underfeeding, food intolerance, or illness. Regular weigh-ins help track progress objectively. Your vet will likely run a fecal test and blood work.