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Health & FitnessGenerated accuracy model review: 2026-05-06
Caffeine Calculator 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
- Standard averages used: * **Coffee (8oz):** 95 mg * **Espresso (1oz):** 63 mg * **Tea (8oz):** 26 mg * **Soda (12oz):** 40 mg * **Energy Drink (16oz):** 160 mg
Test cases
Default input regression check
Generated from the checked-in default inputs and calculate function.
Inputs
- Coffee Cups (8oz): 2
- Espresso Shots: 0
- Tea Cups (8oz): 0
- Soda Cans (12oz): 0
- Energy Drinks (16oz): 0
Expected outputs
- Total Caffeine: 190 mg
- % of Daily Limit: 47.50%
- Status: Safe
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
- Caffeine values are based on typical serving estimates rather than exact brand-specific lab measurements.
- The total reflects consumption amount, not how quickly your body metabolizes caffeine.
- Sensitivity varies widely, so the same total can feel very different from one person to another.
Unit handling
- Coffee Cups (8oz) accepts numeric values.
- Espresso Shots accepts numeric values.
- Tea Cups (8oz) accepts numeric values.
- Soda Cans (12oz) accepts numeric values.
- Energy Drinks (16oz) accepts numeric values.
- Total Caffeine is displayed in mg.
- % of Daily Limit is displayed as a percentage.
Rounding rules
- Number displays use up to 2 decimal places in the calculator UI.
- Percent outputs are displayed with two decimal places.
Version history
1.0.0 - 2026-05-06
Generated accuracy and testing page from the current caffeine-intake-calculator calculator definition.
Change log
2026-05-06
Published default regression test documentation and metadata fallbacks for Caffeine Calculator.
Calculator transparency
Accuracy pages are generated from checked-in calculator definitions and can be upgraded with curated review metadata over time.