Alcohol — Quick 8‑Section Guide
Estimate ABV alcohol content and approximate BAC. Results are estimates only—never drink and drive.
1) Core idea
- Alcohol volume = drink volume × ABV%
- BAC (Widmark‑style): ((alcohol ml × 0.789) / (weight × r)) − 0.015 × hours
2) Flow
- Pick drink, size, ABV (or custom); enter weight, sex, and hours
- We compute pure alcohol ml, estimated BAC, and a decay curve
3) Sanity checks
- Weight in kg; if using lb, convert: 1 lb = 0.45359237 kg
- Hours since first drink, not since last sip
4) Shortcuts
- Standard drink ≈ 14 g alcohol (about 17.7 ml)
- Average elimination ≈ 0.015 BAC per hour
5) Pitfalls
- Individual metabolism varies; meds and food change absorption
- Charts/devices aren’t legal proof—laws differ by region
6) Micro examples
- 500 ml beer at 5% → 25 ml alcohol
- 90 ml whisky at 42.4% → 38.2 ml alcohol
7) Mini‑FAQ
- Safe to drive? Never rely on estimates; use a certified test
- Privacy? All calculations run in your browser
8) Action tip
Plan a ride before drinking. Hydrate and pace yourself responsibly.