Start With a Practical Target
Most healthy adults can begin with a weight-based estimate of 30-40 ml per kg per day, then adjust for weather, exercise, sweating, and thirst.
Hydration Guide
Build a Better Daily Drinking Routine
Water supports temperature control, digestion, joints, concentration, and energy. The best routine is steady, realistic, and adjusted for your day.
Use the Pale Yellow Check
A pale yellow urine colour is a simple everyday signal for many people. Very dark urine can suggest low fluids, while constantly clear urine may mean you are overdoing it.
Count More Than Plain Water
Water is the cleanest choice, but lower-sugar drinks, milk, tea, coffee, soups, fruit, and vegetables can also contribute to total fluid intake.
Drink Around Your Day
Try a glass after waking, one with each meal, one mid-afternoon, and extra fluids around workouts or hot weather.
When You May Need More Water
You may need a higher intake when you exercise, work outdoors, travel in hot climates, sweat heavily, eat a high-protein or high-fibre diet, or recover from illness. Pregnant or breastfeeding people also often need more fluids.
When to Be Careful
Do not force large amounts of water quickly. People with kidney disease, heart failure, low sodium risk, or a doctor-advised fluid restriction should follow professional guidance instead of a generic calculator.
Easy Hydration Habits
- Keep a bottle where you work or study.
- Pair a glass of water with each meal.
- Add lemon, mint, cucumber, or berries if plain water feels boring.
- Increase fluids before and after exercise instead of waiting until you feel drained.