A Morkie has no kennel-club breed standard and no single adult weight: depending on which parent it takes after, an adult runs 4 to 7 lb (2 to 3 kg). The chart below gives the typical weight and the usual range by month.
Quick answers
- There is no Morkie breed standard. The American Kennel Club does not recognise the cross, so no adult weight range is set by a kennel club.
- Size depends on which parent it takes after. A first cross lands between its two parents: Maltese × Yorkshire Terrier 4–7 lb.
- Every figure comes from the AKC for one of the two parent breeds, its standard or its breed-page figure; no kennel club sets a standard for this cross.
- If you do not know the category, the puppy weight calculator estimates adult weight from your puppy’s age and weight today, which is the better tool here.
Morkie growth chart by size
Each table below covers one parent pairing. Its range runs from the lighter parent’s standard to the heavier one’s, because a first-generation cross lands between its parents, and it is scaled by the growth curve for the size class that span falls in. Both parents are capped at about 7 lb, so there is one pairing and one narrow range.
Maltese × Yorkshire Terrier Morkie
Both parents’ AKC standards cap them at about 7 lb: the Maltese under 7 lb, with 4 to 6 lb preferred, and the Yorkshire Terrier not to exceed 7 lb. So the cross has one narrow range.
| Age | Typical | Usual range | Lightest 1 in 10 | Heaviest 1 in 10 |
|---|---|---|---|---|
| 2 months mo | 0.81.7 | 0.4–1.21.0–2.7 | < 0.3< 0.8 | > 1.5> 3.4 |
| 3 months mo | 1.12.4 | 0.6–1.81.3–3.9 | < 0.5< 1.1 | > 2.2> 4.8 |
| 4 months mo | 1.43.1 | 0.8–2.31.8–5.1 | < 0.6< 1.4 | > 2.9> 6.3 |
| 6 months mo | 1.84.1 | 1.0–3.12.3–6.7 | < 0.8< 1.8 | > 3.8> 8.5 |
| 9 months mo | 2.24.8 | 1.2–3.62.7–8.0 | < 1.0< 2.1 | > 4.5> 9.9 |
| 12 months mo | 2.35.1 | 1.3–3.82.8–8.4 | < 1.0< 2.2 | > 4.7> 10.4 |
| 18 months mo | 2.45.3 | 1.3–4.02.9–8.7 | < 1.1< 2.3 | > 4.9> 10.8 |
| 24 months mo | 2.55.5 | 1.4–4.13.1–9.0 | < 1.1< 2.5 | > 5.0> 11.1 |
Each chart spans the whole size category, from its lightest adults to its heaviest, so its ranges run wider than a single breed’s: at least half of puppies in the category weigh within the usual range, and fewer than 1 in 10 weigh less than the lightest figure or more than the heaviest. Males and females are shown together, because the size categories are not set by sex.
Weigh on the same scale at the same time of day where you can. The trend across several weighings tells you far more than any single row, and in a cross it is the only thing that narrows the answer.
Where these numbers come from
No kennel club recognises the Morkie, so this page does not invent a standard for it.
Every weight range above is built from the American Kennel Club figures for its parent breeds — the Maltese and Yorkshire Terrier pages on this site carry those figures and their sources — and a first-generation cross is taken to land between its two parents. That is why the ranges are wider than on a breed page: they cover everything the two parents allow, not a figure someone chose.
The month-by-month ranges are not measurements of Morkies. They are the same growth curves used everywhere on this site — built from 8,754,779 veterinary bodyweight records published by Salt and colleagues — applied to each size category’s adult range.
That research found dogs of similar adult size grow on similar curves whatever the breed, which is what makes the arithmetic valid for a cross with no standard of its own. The derived table, the filtering steps and the known gaps are published in full.
- O’Neill DG, Witkowska SD, Brodbelt DC, Church DB, Engdahl KS (2025). Yorkshire Terriers under primary veterinary care in the UK: demography and disorders. Companion Animal Health and Genetics 12:6
- Salt C, Morris PJ, Wilson D, Lund EM, German AJ (2017). Growth standard charts for monitoring bodyweight in dogs of different sizes. PLoS ONE 12(9): e0182064
- Supporting dataset, University of Liverpool DataCat (CC BY 4.0)
Where to go next
- Puppy weight calculatorAge and weight in, adult weight range out — the tool to use when there is no breed standard.
- Dog size chartThe five size classes, and how to tell which one a puppy is heading for.
- Maltese weight chartOne of the parent breeds, with its own AKC standard.
- Yorkshire Terrier weight chartOne of the parent breeds, with its own AKC standard.
- Body condition scoreThe 9-point scale vets use, and why it beats the scale alone.
Other toy breeds
A Morkie sits in the toy size class at the category this page is filed under, so these breeds share its growth curve. Each has an American Kennel Club standard behind its numbers, which a cross does not.
Frequently asked questions
How big will my Morkie get?
A Morkie lands between about 4 and 7 lb as an adult on its parents’ standards, because the Maltese and the Yorkshire Terrier are both capped at about 7 lb. Pet toy dogs often run above their standards, so a heavier Morkie is common. If you do not know the pairing, enter your puppy’s age and weight into the calculator on the home page.
Is there a Morkie breed standard?
No kennel club recognises the Morkie, so no kennel club sets its weight. The ranges on this page come from the American Kennel Club standards of its parent breeds, the Maltese and the Yorkshire Terrier.
How much does a Morkie weigh in kg?
A Maltese × Yorkshire Terrier cross lands between about 1.8 and 3.2 kg as an adult on its parents’ standards. Each table above gives every month in kilograms, with a switch to pounds.
When is a Morkie fully grown?
A Morkie is close to adult weight by about 12 months, as small dogs are; the last few percent can fill in over the following months.
Is my Morkie puppy underweight if it is below the chart?
Not necessarily. The tables show a span, and a puppy taking after the smaller parent will sit toward its bottom. A puppy that is consistently below its range and not gaining, or has dropped from a higher line to a lower one, is worth a vet visit; a single low reading is not.
How can I tell if my Morkie is a healthy weight?
Body condition tells you more than the scale. You should be able to feel the ribs under a thin layer of fat without pressing, see a waist from above and see the belly tuck up from the side. In a coated cross that check has to be done by hand.