How Much Water Do You Actually Need?
Base formula: Body weight (kg) × 35ml = daily water intake in ml
| Weight | Base Need | +1hr Moderate Exercise | Hot Climate (+) | Total Range |
|---|---|---|---|---|
| 55 kg | 1,925 ml | +600 ml | +500 ml | 2.5–3.5 L |
| 70 kg | 2,450 ml | +600 ml | +500 ml | 3.0–4.0 L |
| 85 kg | 2,975 ml | +700 ml | +500 ml | 3.5–4.5 L |
| 100 kg | 3,500 ml | +800 ml | +600 ml | 4.0–5.0 L |
Signs of Dehydration — By Severity
| Urine Color | Hydration Status | Action |
|---|---|---|
| Clear / pale yellow | Well hydrated | Maintain current intake |
| Light yellow | Good hydration | Fine |
| Dark yellow | Mild dehydration | Drink 500ml now |
| Orange / amber | Moderate dehydration | Drink 1L now, evaluate |
| Brown | Severe dehydration / medical issue | Seek medical attention |
Water Intake Tips for Indians
- India's hot climate (especially April–June) increases requirement by 0.5–1 litre
- Chai and coffee are mild diuretics — add 150ml extra per cup
- High-sodium Indian food increases water requirement
- Dal, sabzi, and fruits (watermelon, cucumber) count toward daily total
- Fastest way to drink more: keep a 1L bottle visible on desk
Overhydration — Yes, It's Real
Drinking excessive water (above 4–5L for non-athletes) can cause hyponatremia — dangerously low sodium levels. Signs: nausea, headache, confusion. Rare for most people but can happen during endurance events where only plain water is consumed without electrolytes.
💧 Calculate Your Water Intake
Use Water Intake Calculator →Q: Does drinking more water help with weight loss?
Partially. Drinking 500ml of water before meals reduces calorie intake by 10–13% in studies. Cold water burns 8–10 extra calories per 500ml (body warms it). Water replaces high-calorie drinks. But water itself doesn't 'burn fat' — it supports the process.
Q: Is coconut water better than plain water for hydration?
For most situations, plain water is perfectly adequate. Coconut water adds electrolytes (potassium, sodium) and is useful after intense sweating (30+ min exercise). The natural sugars make it unnecessary for desk workers — stick to plain water and get electrolytes from food.
⚠️ Educational purposes only. Consult a certified financial advisor for personalised advice.