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Both calculators run independently — change the inputs on either side to compare results.
Nutrition
Daily Water Intake Calculator
Estimate daily water intake in millilitres from body weight, exercise duration and intensity, climate, and special health factors. Combines a baseline of ~35 ml/kg with adjustments for exercise sweat loss and environmental or physiological stress.
Fill in the required fields to see your result.
Nutrition
Protein Requirement Calculator
Estimate daily protein needs in grams from body weight and activity level. Designed to scale recommendations from the WHO baseline (~0.8 g/kg for sedentary adults) upward for active people, athletes, and those building or preserving muscle.
Fill in the required fields to see your result.
Key differences
| Daily Water Intake Calculator | Protein Requirement Calculator | |
|---|---|---|
| Category | Nutrition | Nutrition |
| Inputs required | 5 | 2 |
| Result | Daily Water Intake (ml) | Daily Protein Requirement (grams) |
| What it does | Estimate daily water intake in millilitres from body weight, exercise duration and intensity, climate, and special health factors. Combines a baseline of ~35 ml/kg with adjustments for exercise sweat loss and environmental or physiological stress. | Estimate daily protein needs in grams from body weight and activity level. Designed to scale recommendations from the WHO baseline (~0.8 g/kg for sedentary adults) upward for active people, athletes, and those building or preserving muscle. |