Per the AKC
(American Kennel Club), the range for the Pomeranian breed standard is 3 - 7 lbs ( 1.36 - 3.175 kg). For show, 4 to 6 lbs. is preferred. While many Poms will indeed fall into the 3 to 7 lb. range, some will be smaller than this, and quite a few will be a bit larger. We'll discuss this more ahead.
A height is not given; however, most Poms that are 3 - 7 pounds will be 8 - 11 inches (20.32 - 27.94 cm), and this is measured from floor to withers (top of the shoulder blades).
The Kennel Club (KC)
standard stipulates a more narrow range without much room for variation: 4 - 5.5 lbs. (2 to 2.5 kg) for females and 4 - 4.5 for males (1.8 to 2 kg). Pomeranians of this size would fit into the AKC's standard.
The Canadian Kennel Club (CKC)
not to be confused with the American Continental Kennel Club, sets a standard size that is the same as AKC: 3-7 lb (1.36 -3.17 kg) with 4-6 lbs. (1.81 -2.72 kg) being considered ideal.
Per the FCI, Fédération Cynologique Internationale, which consists of over 80 member countries, weight is not included in the standard; however, height is. Pomeranians are to be 20 cm (+ or - 2 cm) from floor to shoulders (withers).
The 20 cm is a tad shorter than the expected height of AKC Pomeranians. Per the FCI, Pomeranians are actually referred to as Toy Spitz, and those that are taller than 22 cm are then classified as Miniature Spitz.
Want to hear something neat?
For 5 years we followed the growth rates of 247 Pomeranian puppies. These were Poms from both at-home breeders and those living with families across the US, Canada and the UK. We checked in at 8 weeks, 4 months, 6 months and at 10 months old.
At those time frames, we estimated the Pom's adult weight. We were accurate between 85 & 90% of the time within a 1/2 lb. range. We finally compiled all of our data, exported it into charts and have this in the new, improved Print Edition of the PetPom Book.