How Big Do Morkies Get?

“How big is she going to get” is the question I field most from new morkie owners, and the honest answer is that most of it was decided before the litter was born. A morkie is a Maltese crossed with a Yorkshire Terrier. Two toy breeds, so there is no large morkie waiting in the wings the way a standard poodle gives you a big doodle. What you are really asking is which end of a narrow range your puppy lands on.

The Maltese barely moves. It sits around 4 to 7 pounds and always has. The Yorkie is where the spread comes from. By the breed standard a Yorkie is supposed to stay under 7 pounds, but plenty of pet Yorkies come from bigger, older-style lines that run 8, 10, even 12 pounds. So before you try to read the future off the puppy in your lap, find out what the Yorkie parent weighed grown. That one fact tells you more than the puppy’s current size ever will.

Most pet morkies live in that top row, four to eight pounds, because most of the Maltese and Yorkies used for the cross are on the small side to begin with. If nobody can tell you what the parents weighed, bet on the smaller end. It is the safer guess more often than not. And if a breeder is promising you a morkie that stays under three pounds, read the teacup section below before you write a check.

How small do they start?

Smaller than the photos make them look. An eight-week-old morkie is often a pound and a half, a fistful of fur you can hold in one hand with room to spare. I tell every foster family the same thing: go meet the puppy in person before you commit, because the little thing asleep on the cushion and the grown dog in that chart above are hard to believe are the same animal.

Growth chart by age

Here is the rough curve for a morkie headed toward the usual 4-to-8-pound range. Read it as a guide, not a promise. Every pup runs a little ahead or behind, and the smaller the dog, the more a couple of ounces swings the percentage. A morkie from two tiny parents tracks the low line of every row. One with a bigger Yorkie behind it rides the top.

The shape of the curve holds no matter which line your dog came from. Quick early growth through the first three or four months, then a long slow fill where the dog packs on body rather than height. If your six-month-old has stopped shooting up and is just thickening a little, that is exactly right. Nothing is wrong.

When is my morkie full grown?

Height first, weight second. Most morkies reach close to their adult height by about eight months, then spend the next few months thickening through the chest and legs. Call it done around a year, twelve months at the outside. Small dogs wrap up growth earlier than big breeds do, so do not sit around waiting for a growth spurt that is not coming. If your morkie looks full-sized at ten months, it probably is.

How can I predict the adult size?

Three checks, in the order I trust them. First, the parents’ grown weights, because your puppy almost always lands between the two, and the Yorkie parent is the one that matters most here. Ask the breeder, and ask to see both dogs if you can. Second, a small-breed rule of thumb: a morkie’s weight at six months is usually close to its adult weight. Third, the old big-paws test, loose skin and oversized feet meaning there is growing left. But the parents beat the paws every single time. When someone shows me a puppy and no parents, I know a lot less than they think I do.

Is a teacup morkie real?

No. Not as a real type. “Teacup” is a sales word, not a size any registry recognizes. What a breeder usually means by it is a morkie bred to stay under about three pounds, often by pairing the two smallest, sometimes runtiest, dogs in the barn and charging a premium for the result.

I steer people away from them, hard. A dog that small comes with trouble built in. Bones fragile enough to crack from a hop off the couch. Blood-sugar crashes that can drop a puppy fast, so you are syringe-feeding sugar water at midnight. Teeth crammed into a jaw the size of a thumbnail, which turns into dental bills for the life of the dog. And a windpipe and heart that were never meant to run that tiny. You pay more for the word and often get a more delicate animal for it. A healthy five-pound morkie is already a lap dog you can tuck under one arm. There is nothing to gain by chasing smaller.

Is my morkie overweight, or just fluffy?

You honestly cannot tell by looking, because the coat lies. Use your hands instead. Run them down the dog’s sides. You want to feel the ribs under a thin layer, about like the back of your own hand feels through the skin. From above there should be a waist tucking in behind the ribs. That silky coat hides a chunky dog and a bony one equally well, which is one more reason to keep it brushed down to the skin, a job I lay out in the morkie grooming guide. On a dog this small, half a pound of extra weight is a real slice of the body, and it lands straight on those toothpick knees, the exact joint toy breeds already tend to have trouble with.

For the whole breed at a glance, start with the morkie breed guide. A growing puppy is a training puppy, so run this next to the morkie training guide for the housebreaking and calm alone-time that fill those first months. Want to compare a slightly heavier lap dog? The maltipoo shares the Maltese half and often runs a touch bigger, and the rest of the designer crosses cover every size from pocket dog to couch-filler.