Science-based dehydration factors for Starbucks, Nevada Coffee & Greenwich. See exact extra water amounts for 20+ drinks β automatically tracked in Suu.
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Dehydration factors and recommended extra water for Starbucks drinks.
| Drink | Volume | Caffeine | Net Hydration | Extra Water | Effect |
|---|---|---|---|---|---|
| Americano (Grande) | 473ml | ~225mg | ~265ml | ~210ml | High |
| Latte (Grande) | 473ml | ~150mg | ~340ml | ~130ml | Medium |
| Cappuccino (Grande) | 473ml | ~150mg | ~330ml | ~140ml | Medium |
| Mocha (Grande) | 473ml | ~175mg | ~310ml | ~160ml | Medium |
| Cold Brew (Grande) | 473ml | ~205mg | ~275ml | ~200ml | High |
| Espresso (Solo) | 30ml | ~75mg | ~17ml | ~100ml | High |
| Flat White (Grande) | 355ml | ~130mg | ~265ml | ~90ml | Low |
| Matcha Latte (Grande) | 473ml | ~80mg | ~400ml | ~70ml | Low |
| Frappuccino (Grande) | 473ml | ~95mg | ~330ml | ~140ml | Medium |
| Drink | Volume | Caffeine | Net Hydration | Extra Water | Effect |
|---|---|---|---|---|---|
| Americano | 300ml | ~150mg | ~165ml | ~135ml | High |
| Latte | 300ml | ~100mg | ~220ml | ~80ml | Medium |
| Cappuccino | 250ml | ~100mg | ~180ml | ~70ml | Medium |
| Espresso | 30ml | ~75mg | ~17ml | ~100ml | High |
| Cold Brew | 400ml | ~180mg | ~220ml | ~180ml | High |
| Drink | Volume | Caffeine | Net Hydration | Extra Water | Effect |
|---|---|---|---|---|---|
| Americano | 350ml | ~170mg | ~196ml | ~154ml | High |
| Latte | 350ml | ~110mg | ~258ml | ~92ml | Medium |
| Cappuccino | 300ml | ~110mg | ~215ml | ~85ml | Medium |
| Espresso Doppio | 60ml | ~150mg | ~33ml | ~150ml | High |
| V60 / Filter | 300ml | ~140mg | ~168ml | ~132ml | High |
The science behind caffeine's diuretic effect and real hydration contribution.
Every beverage has a hydration coefficient (0.0β1.0). This number shows what fraction of the drink's volume actually contributes to your body's net hydration. Suu calculates this using caffeine content, sugar content, and beverage type.
| Beverage | Factor | Net hydration per 200ml | Visual |
|---|---|---|---|
| Water | 1.00 | 200ml | |
| Milk / Kefir | 0.90 | 180ml | |
| 100% Fruit Juice | 0.85 | 170ml | |
| Green Tea | 0.75 | 150ml | |
| Black Tea | 0.70 | 140ml | |
| Filter Coffee | 0.60 | 120ml | |
| Espresso | 0.55 | 17ml (30ml base) | |
| Cola / Soda | 0.50 | 100ml | |
| Energy Drink | 0.40 | 80ml |
Caffeine is a mild diuretic that increases urine production. At moderate intake (under 400mg/day) the dehydration effect is minimal. Higher-caffeine drinks like espresso and cold brew require slightly more water compensation.
Milk-based drinks like Latte and Cappuccino have a lower net dehydration effect because milk itself has a hydration factor of ~0.90. This is why Latte requires less compensatory water than Americano of the same volume.
Suu is the only water tracking app with a dedicated coffee chain section. Select your exact Starbucks, Nevada, or Greenwich drink and Suu instantly shows how much extra water you need β no manual math required.
Pick your Starbucks, Nevada, or Greenwich drink from the Suu app β it instantly calculates your extra water need. Free, no ads, no subscription.