Get a rough daily fluid estimate based on the US National Academies’ adequate intake figures, adjusted for exercise.
Good to know
- Total water includes water from food, which usually provides around a fifth of it.
- Needs rise in hot weather, at altitude, and during pregnancy and breastfeeding.
- Thirst and pale-yellow urine are good everyday guides for most healthy adults.
- People with heart or kidney conditions may need to limit fluids. Follow your doctor’s advice.
This tool gives a general estimate for healthy adults. It isn’t medical advice. Medical disclaimer.