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Water intake calculator

Enter your details below to get your daily hydration target

years
st lb
🪑 Sedentary 🌥️ Temperate
Enter your details
and press Calculate
You should drink approximately
--
litres per day
-- ml  |  -- pints
Base intake
--
from body weight
Activity add-on
--
for exercise level
Climate add-on
--
for your weather
250 ml glasses
--
spread across the day
Tips to hit your target
🌅 Start with a large glass first thing in the morning
🔔 Set hourly reminders on your phone throughout the day
🍶 Carry a 500 ml bottle — refill it to your glass count
🥗 Fruit and veg count — about 20% of intake comes from food
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Water intake recommendations are estimates based on body weight and lifestyle factors. Individual needs vary depending on health conditions, medications, and diet. Always consult a healthcare professional for personalised advice.
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Formulas based on established research and clinical guidelines.
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