How Much Water Should a 15 lb Dog Drink a Day?

15 fl oz/day

15 lb dog · ≈ 1.9 cups · 0.44 litres per day

Daily water for a 15 lb dog

Situation	fl oz	Cups	Litres
Typical day	15	1.9	0.44
Low (wet food diet)	8	0.9	0.22
Hot day / active	22	2.8	0.67
Upper normal limit	30	3.8	0.89

Rule of thumb only; wet food supplies part of the water. Puppies need water available at all times.

How much water should a 15 lb dog drink?

About 15 fl oz (1.9 cups, 0.4 L) a day – the common rule of 1 oz per lb of body weight. Hot weather, exercise, nursing and dry food raise it.

When is drinking too much a concern?

Consistently more than about 30 oz (2 oz/lb) a day can signal diabetes, kidney disease or Cushing’s – see your vet.