🦊Foxulator
🍺

アルコール分解時間計算機

飲酒量からWidmark公式で血中アルコール濃度（BAC）と分解時間を計算します。運転可能時間の目安も確認可能。

🍶
Soju
17% · 360ml
0
🍺
Beer
5% · 500ml
0
🍷
Wine
12% · 150ml
0
🥛
Makgeolli
6% · 300ml
0
🥃
Whiskey/Spirits
40% · 30ml
0

ℹ️ About Alcohol Metabolism

Alcohol is metabolized by the liver at an average rate of about 0.015% BAC per hour. Blood alcohol concentration varies based on weight, gender, and amount consumed.

Average metabolism rate: ~1.5% per hour

📖 使い方

  1. Enter your weight in kg
  2. Select your gender
  3. Enter hours since drinking (optional)
  4. Select the types and amounts of drinks consumed
  5. Click Calculate

✨ 主な機能

  • ✓Accurate BAC calculation using Widmark formula
  • ✓5 drink presets (soju, beer, wine, makgeolli, whiskey)
  • ✓BAC change over time display
  • ✓Time until safe to drive (BAC ≤ 0.03%)
  • ✓Time until completely sober prediction

📐 計算式

BAC = (Alcohol g ÷ (Weight kg × r)) × 100 - (0.015 × hours)

💡 計算原理

  • •The Widmark formula calculates Blood Alcohol Concentration (BAC) based on alcohol consumed and body weight.
  • •r factor: Male 0.68, Female 0.55 (body water ratio difference)
  • •Alcohol content (g) = Volume (ml) × Alcohol % × 0.789 (alcohol density)
  • •Average metabolism rate: ~0.015% per hour (varies by individual)
  • •Legal driving limit varies by country (0.08% in US, 0.03% in Korea/Japan)
  • •BAC 0.08% or higher: Significant impairment, illegal to drive in most countries

❓ よくある質問

Q. How long after drinking 1 bottle of soju can I drive?

A. For a 70kg male, one bottle of soju (360ml, 17%) takes about 8-10 hours for BAC to drop below 0.03%. Individual variation is significant, so using public transportation is recommended.

Q. Why do women get intoxicated faster than men?

A. Women have higher body fat percentage and lower body water ratio (r=0.55 vs male 0.68), resulting in higher BAC from the same amount of alcohol.

Q. What is the legal BAC limit for driving?

A. It varies by country: 0.08% in the US and UK, 0.05% in most of Europe, 0.03% in Korea and Japan. Some countries have zero tolerance policies.

Q. Does drinking more alcohol help you sober up (hair of the dog)?

A. No. Drinking more alcohol only adds to your BAC and extends the time to sober up. Only time, rest, and hydration help.

Q. Why do I get drunk faster on an empty stomach?

A. On an empty stomach, alcohol is absorbed rapidly, causing BAC to rise quickly. Eating food before or while drinking slows absorption.

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