How Much Water Should a 40 kg Dog Drink Per Day?
Calculate daily water requirements for a large 40 kg breed such as a German Shepherd or Rottweiler.
How to use this tool
- Enter your dog's body weight.
- Select their typical activity level.
- Ensure fresh water is always available; hot weather or illness increases needs.
Very large dogs need a substantial daily water supply — get an accurate hydration target for your 40 kg dog.
Frequently asked questions
- How much water should a dog drink?
- A general guideline is 50–70 ml of water per kg of body weight per day. Active dogs or those in hot climates may need considerably more.
- What if my dog drinks more or less than the estimate?
- Sudden changes in water consumption can signal health issues such as diabetes or kidney disease. Consult a vet if you notice significant changes.