A daily weight check is one of the simplest things you can do for a litter, and often the earliest objective sign that something needs attention — frequently well before any other symptom becomes visible.
The most important first
- Normal weight gain after the first day is roughly 5 to 10% of body weight per day.
- Aim for at least 1.5 times birth weight by day 7, and roughly double birth weight by about day 10–14.
- Weigh daily for the first two weeks, then every 2 to 3 days going forward.
- A flat or declining weight curve on any single puppy warrants attention immediately, even if the litter’s average looks fine.
- Birth weight varies enormously by breed size — judge each puppy against its own trend, not a fixed number.
Free interactive tool
Log each puppy’s weight online and see the whole litter on one growth chart, with a flag when a puppy misses these targets. Open the puppy weight chart →
Why daily weighing matters so much
A weight check is objective in a way that behavior alone often isn’t — a puppy can look and act fairly normal for a while even as it quietly falls behind, and a flat or declining weight trend is frequently the first hard signal that something needs investigating, sometimes appearing before any other visible sign of trouble. This is part of why weight tracking runs through so much of this area, tying directly into the neonatal assessment score sheet and the weight chart tool.
The first 48 hours are the most important. Large studies of kennel puppies show that how much a puppy gains or loses between birth and day two is one of the strongest early predictors of whether it survives. Small and low-birth-weight puppies have almost no margin for early loss. Weight loss over these two days is also a common sign that a puppy didn’t get enough colostrum.
What normal growth looks like
After a normal initial adjustment in the first 24 hours, healthy puppies typically gain roughly 5 to 10% of their body weight per day, should reach at least one and a half times their birth weight by the end of the first week, and roughly double it by about day 10–14. If a puppy hasn’t doubled by two weeks, talk to your vet. Larger breeds gain more grams per day in absolute terms; a rough guide is a few grams a day for every kilo of expected adult weight, and your vet can tell you what to expect for your breed. Recommended checkpoints are daily for the first two weeks, then every two to three days after that — some breeders use a tighter schedule in the first week specifically (birth, 12 hours, 24 hours, 48 hours, then days 3, 5, and 7) for extra reassurance on higher-risk litters.
Reading the curve, not just the number
A single weight reading tells you less than a trend does — what matters is whether a puppy’s weight is climbing steadily, and how that compares to its own previous readings, not just to its littermates. A puppy whose curve flattens or dips, even briefly, deserves closer attention right away, even if every other puppy in the litter is doing well and the litter average would look fine on paper.
In practice
A breeder sees the litter’s average weight gain looking healthy overall and doesn’t look closely at each individual puppy’s numbers. One puppy has actually plateaued for two days running, hidden within a good litter average. Checking each puppy’s individual trend, not just the group average, is what would have caught this — a litter-wide average can mask one puppy quietly falling behind.
(Illustrative, composite scenario.)
To compare puppies of different sizes, work in percentages: (today’s weight − previous weight) ÷ previous weight × 100. A 5 g gain means something very different for a 120 g puppy than for a 500 g one.
Accounting for breed-size variation
Birth weight varies enormously across breeds — a toy-breed puppy and a giant-breed puppy start from very different baselines, and that’s expected. The useful comparison is always a puppy against its own trajectory over time, not against a fixed weight target that doesn’t account for your breed’s typical size.
When to call your vet
- A puppy loses more than about 10% of its birth weight in the first 24 hours.
- Weight keeps falling beyond the second day, or stops rising for a day or more.
- Less than 1.5 × birth weight by day 7, or birth weight not roughly doubled by about day 10–14.
- A supplemented puppy hasn’t started gaining within a day or so.
- Weight problems come with weak suckling, crying, or a puppy that feels cool or is lying apart — call sooner.
- If in doubt, call — your vet would rather hear from you early.
Work on it
A few minutes here will teach you more than re-reading the article.
Ask yourself
- Am I weighing every puppy on a consistent schedule, not just when I remember to?
- Would I catch a single puppy’s flattening curve, even if the litter average looked fine?
- Do I know roughly what birth weight and growth rate to expect for my specific breed?
Find out & check
- Find out what scale precision your vet recommends — grams tend to show meaningful change earlier than larger units.
Do one thing
- Set a consistent daily weighing time and stick to it for the whole litter.
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Sources & further reading
- Merck Veterinary Manual — Management of the Neonate in Dogs and Cats. merckvetmanual.com
- Mugnier A, Gaillard V, Chastant S — Relative Impact of Birth Weight and Early Growth on Neonatal Mortality in Puppies, Animals 2023;13(12):1928. mdpi.com
- Schrank M, Mollo A, Contiero B, Romagnoli S (2020), Animals 10(1):8 — Bodyweight at Birth and Growth Rate during the Neonatal Period in Three Canine Breeds. mdpi.com
- Royal Canin Veterinary Academy (Chastant S., ENV Toulouse) — Dealing with the sick newborn puppy. academy.royalcanin.com
- Royal Canin Veterinary Academy (Vannucchi C.) — A quick guide to intensive care of newborn puppies. academy.royalcanin.com
- Lawler DF — Neonatal and pediatric care of the puppy and kitten, Theriogenology 2008;70:384–392. confluence.cornell.edu (PDF)
- American Kennel Club — Raising Newborn Puppies. akc.org
- Dogs NSW (Hedberg K., BVSc) — Care of puppies birth to 10 days. dogsnsw.org.au (PDF)
Where evidence is limited, recommendations rest on established practice and expert judgment, and may be updated as knowledge develops.
Next steps
- Read next: Neonatal weight chart.
- Related: Nursing and monitoring milk intake.
- Return to the area hub: The neonatal period.