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Health & FitnessGenerated accuracy model review: 2026-05-06
Water Intake accuracy and testing
This page documents how Calwarden builds trust for this calculator: source notes, regression-style default tests, limitations, assumptions, unit handling, rounding, and visible change history.
Formula source
- Base Formula: Weight (lbs) / 2 = Ounces per day. Activity Adder: +12 ounces for every 30 minutes of exercise.
Test cases
Default input regression check
Generated from the checked-in default inputs and calculate function.
Inputs
- Body Weight: 160 lbs
- Daily Exercise: 30 min
Expected outputs
- Daily Target: 2.72 Liters
- In Ounces: 92 oz
Known limitations
- This page documents the checked-in calculator logic and does not certify results for every real-world edge case.
- Use the result as a planning estimate unless the calculator page states a stricter purpose.
Assumptions
- The estimate uses a weight-based baseline plus an exercise add-on rather than a clinical hydration assessment.
- It assumes moderate conditions and does not fully account for heat, altitude, illness, or heavy sweat rates.
- Water needs can also be influenced by diet, medications, pregnancy, and electrolyte losses.
Unit handling
- Body Weight accepts values in lbs.
- Daily Exercise accepts values in min.
- Daily Target is displayed in Liters.
- In Ounces is displayed in oz.
Rounding rules
- Number displays use up to 2 decimal places in the calculator UI.
Version history
1.0.0 - 2026-05-06
Generated accuracy and testing page from the current water-intake-calculator calculator definition.
Change log
2026-05-06
Published default regression test documentation and metadata fallbacks for Water Intake.
Calculator transparency
Accuracy pages are generated from checked-in calculator definitions and can be upgraded with curated review metadata over time.