Water and hydration
How much water does a puppy need per day?
Last updated 23 September 2026 · How we write and check this
Short answer
Puppies generally need more water relative to their weight than adult dogs, often 60 to 100 ml per kg a day, because their bodies hold a higher percentage of water and their metabolism runs faster. A 5 kg puppy might drink 300 to 500 ml (10 to 17 fl oz), spread across many small visits to the bowl rather than a few large ones.
Why puppies need proportionally more
A newborn puppy's body is around 80 percent water, compared to roughly 60 percent in an adult dog, and that higher water content persists through the fast-growing puppy months. Combined with a higher metabolic rate, this means puppies can dehydrate faster than adults if water is not available.
How intake changes through puppyhood
A very young puppy gets most fluid from nursing or milk replacer and drinks little from a bowl. By 8 to 12 weeks, once fully weaned onto solid food, water drinking increases steadily and should be offered freely rather than rationed, aside from a sensible cutoff before bed.
Watching a growing puppy's habits
Puppies often drink in short bursts around play, meals, and after waking from naps, which is normal and not overdrinking. A consistently full, clean bowl within easy reach at all times during the day works better for puppies than trying to measure exact amounts.
Key takeaways
- Puppies often need proportionally more water than adults, roughly 60 to 100 ml per kg a day.
- A puppy's body is around 80 percent water, higher than an adult dog's.
- Water intake rises steadily after full weaning around 8 to 12 weeks.
- Frequent small drinks around play and meals are normal puppy behavior.