BAC Calculator
Calculate a reference BAC estimate from drinks and elapsed time
飲酒情報を入力
推定結果
推定BAC
0.000%
ℹ️ 運転の可否は判定できません
しらふ
推算値が0になるまで（目安）
—
純アルコール
0 g
残留
0 g
代謝済み
0 g
分解速度には個人差があります。計算結果が0でも、運転できるとは判断できません。
About BAC Calculator
This model estimates BAC from alcohol intake and body weight, with a height-based adjustment and a fixed decrease of 0.015 percentage points per hour. That fixed decrease is not a measurement of your personal metabolism.
Food, drinking pace, delayed absorption, individual physiology, and health can make actual BAC differ from the result. Neither the estimate nor the time until the estimate reaches zero determines driving safety. Alcohol may remain in your body even when the calculation displays zero.
Your inputs are processed in your browser.
How to use BAC Calculator
- Enter sex, height, and weight.
- Add drinks and set the number of servings.
- Enter the time since drinking started.
- Review the reference BAC estimate. Do not use it to decide whether to drive.
Benefits of BAC Calculator
- Enter drinks using beer, wine, sake, and other presets.
- Compare reference estimates for different drink amounts and elapsed times.
- Calculate locally in your browser.
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