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Rottweiler Puppy Growth Chart & Weight Calculator

How much should a Rottweiler puppy weigh? Adult Rottweilers typically weigh 80-135 lb (36-61 kg). Use the month-by-month chart below or enter your puppy's weight to predict adult size.

Updated 2026-10-10 · Adult range based on typical breed standards

Rottweiler weight chart by age

AgeExpected weight (lb)Expected weight (kg)% of adult weight
2 months12-20 lb5-9 kg15%
3 months20-34 lb9-15 kg25%
4 months28-47 lb13-21 kg35%
5 months36-61 lb16-28 kg45%
6 months44-74 lb20-34 kg55%
7 months50-84 lb22-38 kg62%
8 months54-92 lb25-42 kg68%
9 months58-99 lb26-45 kg73%
10 months62-104 lb28-47 kg77%
12 months68-115 lb31-52 kg85%
14 months72-122 lb33-55 kg90%
16 months75-127 lb34-58 kg94%
18 months78-131 lb35-59 kg97%
24 months80-135 lb36-61 kg100%

Ranges span typical females (lower end) to males (upper end). Individual puppies vary; your vet's body condition assessment matters more than hitting an exact number.

How big will my Rottweiler get?

Free · instant · based on veterinary formulas

8 to 104 weeks
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When do Rottweilers stop growing?

As a giant breed, Rottweilers usually reach their adult weight at around 18-24 months, and are typically about half their adult weight by around 6 months. They may keep filling out (gaining muscle and chest depth) for a few months after their height stops increasing.

Feeding a growing Rottweiler

  • Feed a complete puppy food formulated for large-breed puppies, which controls calcium and calories to support healthy bone growth.
  • Split food into 3-4 meals a day until about 6 months, then 2 meals.
  • Keep your puppy lean. You should be able to feel the ribs easily. Use the dog food calculator (puppy setting) as a starting point.
  • Weigh your puppy every 1-2 weeks and compare with the chart above.

Is my Rottweiler puppy overweight or underweight?

A puppy slightly outside the chart range is usually fine if it is active, eating well and has a good body shape. Talk to your vet if your puppy is far outside the range, stops gaining weight, or looks pot-bellied or bony. Parents' size is a strong clue: puppies from smaller parents often finish at the lower end.

Other breed growth charts

Frequently asked questions

How big will my Rottweiler get?

Most adult Rottweilers weigh 80-135 lb. Enter your puppy's weight and age in the calculator above for a personalized estimate.

How much should a 6-month-old Rottweiler weigh?

Typically about 44-74 lb, depending on sex and genetics.

At what age is a Rottweiler full grown?

Usually around 18-24 months.

Rottweiler at a glance

Adult weight: 80-135 lb
Size: giant
Full grown: 18-24 months

Puppy weight calculator →