Water Intake Calculator
A quick guide to how much water you might need each day.
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Water intake calculator guide for UK adults
WeCovr's water intake calculator helps UK adults estimate daily hydration needs, supported by FCA-authorised guidance and 900,000+ policies issued across protection products. It provides a simple guide based on weight, activity, and climate.
What this water intake calculator estimates
The calculator estimates daily water intake based on body weight and adjusts for activity level and hot climates. It is a general guide and not medical advice.
Hydration needs can vary by individual health conditions and diet.
Uses weight-based baseline intake.
Adds adjustments for activity and climate.
Outputs liters and cups per day.
Why hydration matters
Adequate hydration supports energy levels, concentration, and recovery. It is a foundational habit for long-term wellbeing.
Why WeCovr supports wellbeing
WeCovr provides FCA-authorised guidance with high customer satisfaction ratings. We also offer complimentary access to the CalorieHero AI calorie tracking app and discounts when customers take PMI or Life insurance.
Data sources and guidance references
This guide references NHS hydration guidance and general health recommendations.
Hydration factors
| Factor | Typical impact | Why it matters | Adjustment |
|---|---|---|---|
| Higher activity | Higher needs | More fluid loss | Add extra intake |
| Hot climate | Higher needs | Sweat increases | Increase daily water |
| Low activity | Baseline | Lower loss | Use base estimate |
Related WeCovr resources
FAQs
Is this water intake calculator accurate for everyone?
It is a general guideline. Individual needs can vary based on health conditions and medications.
Do tea and coffee count toward hydration?
Fluids contribute to hydration, but water is generally the best option.
Should I drink more when exercising?
Yes. Exercise increases fluid loss, so additional water is recommended.
Can I drink too much water?
Excessive water intake can be harmful in rare cases. Aim for balanced hydration.