How Much Water Should a 145 lb Dog Drink a Day?

145 fl oz/day

145 lb dog · ≈ 18.1 cups · 4.29 litres per day

Daily water for a 145 lb dog

Situation	fl oz	Cups	Litres
Typical day	145	18.1	4.29
Low (wet food diet)	72	9.1	2.14
Hot day / active	218	27.2	6.43
Upper normal limit	290	36.2	8.58

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

How much water should a 145 lb dog drink?

About 145 fl oz (18.1 cups, 4.3 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 290 oz (2 oz/lb) a day can signal diabetes, kidney disease or Cushing’s – see your vet.