Daily water goal · Hydration schedule · Urine colour guide · Foods with water content
Your Details
Your Daily Water Goal
—
Litres / Day
—
ml / Day
—
Glasses (250ml)
Breakdown
Advertisement
Recommended Drinking Schedule
Urine Colour Hydration Guide
The simplest way to check if you're drinking enough water — check urine colour throughout the day.
Pale Yellow
✓ Ideal
Light Yellow
✓ Good
Yellow
~ Drink more
Dark Yellow
⚠ Dehydrated
Amber/Brown
✗ Very low
💡 Urine should be pale yellow (like lemonade) throughout the day. Clear urine means over-hydration. Dark orange/brown means severe dehydration — drink water immediately.
High Water Content Foods — Count Towards Your Daily Goal
20–30% of daily water intake comes from food. These foods count towards your hydration goal.
🥒
97%
Cucumber
🍉
92%
Watermelon
🥛
87%
Buttermilk
🥥
94%
Coconut Water
🍅
95%
Tomato
🥦
89%
Spinach / Palak
🍊
88%
Orange
🍓
91%
Strawberry
🥣
84%
Curd / Dahi
Advertisement — 728×90
Daily Water Intake Calculator — How Much Water Should You Drink?
SuccessMate's free water intake calculator uses the WHO and ICMR-validated formula (body weight × 0.033 litres) as the base, then adjusts for activity level, climate, gender and health conditions including pregnancy and kidney health. Used daily by adults across India, the USA, UK, Canada, Australia, Germany and UAE who want to know their exact hydration goal rather than following the generic "8 glasses a day" guideline. No login, instant results.
Why the "8 Glasses a Day" Rule is Wrong for Most People
The "8 × 250ml = 2 litres" rule ignores your body weight, activity level and climate. A 50kg sedentary woman in air-conditioned Mumbai needs 1.4L/day. An 85kg construction worker in Hyderabad summer needs 3.5L+/day. A breastfeeding mother needs an extra 700ml above her base. People in hot countries like UAE, Australia and the southern US states need significantly more than those in the UK or Germany. This calculator accounts for all these variables precisely.
Signs You Are Not Drinking Enough Water
Check urine colour — pale yellow means hydrated, dark yellow means drink more, amber or brown means severe dehydration. Other signs: persistent headache, difficulty concentrating, dry lips, constipation, muscle cramps during exercise. Dehydration of just 2% of body weight reduces physical performance by 10% and cognitive performance by 5–10% — common causes of afternoon energy slumps in offices across India, UK, Canada and Australia.
❓ Frequently Asked Questions
How much water should I drink per day? ▾
Your daily water need = body weight (kg) × 0.033 litres. A 70kg adult needs 2.3L/day at rest. Add 500ml for every 30 minutes of exercise. In hot Indian summer (35–45°C) or in UAE/Australia, add 500ml–1L extra. Pregnant women need +300ml, breastfeeding mothers +700ml above base. Use this calculator for your exact personalised goal.
Does drinking water help with weight loss? ▾
Yes. Drinking 500ml of water 30 minutes before meals reduces calorie intake by 13% on average. Water temporarily boosts metabolism by 24–30% for 60 minutes. Replacing sugary drinks (chai with 3 spoons sugar, packaged juice, cold drinks) with water reduces daily calorie intake by 200–400 kcal — significant for weight loss over weeks and months.
Can I drink too much water? ▾
Yes — overhydration (hyponatremia) can occur when drinking excessive water too quickly, diluting sodium levels in the blood. Clear, colourless urine throughout the day is a sign of overhydration. Athletes who drink plain water during long events (marathons, cycling) without electrolytes are at risk. For most healthy adults following this calculator's output, overhydration is not a concern.
Does tea and coffee count towards daily water intake? ▾
Yes, partially. Tea and coffee are about 98% water and do contribute to hydration. However, caffeine has a mild diuretic effect — meaning you lose some of the water back through urine. A cup of tea effectively provides about 70–80% of its volume in net hydration. Drinks like buttermilk, coconut water, diluted lassi and plain soups count fully.
When is the best time to drink water? ▾
2 glasses on waking (rehydrates after 7–8 hours without water). 1 glass 30 min before each meal (reduces appetite, aids digestion). 1 glass 2 hours after each meal (prevents diluting digestive enzymes during the meal). 1 glass before exercise, sip 150–250ml every 20 minutes during exercise. 1–2 glasses in the evening. Avoid large amounts right before bedtime to prevent disrupted sleep.