血液酒精含量计算器

使用方法

1. 1
   填写各项

   输入数字或选择所需选项。

2. 2
   查看结果

   更改任何值时，答案会立即更新。

3. 3
   使用结果

   复制结果或记下来。不会向任何地方发送任何内容。

About this tool

Enter the number of standard drinks (14 g of alcohol each), your weight, sex and the hours since you started. The tool uses the Widmark formula to estimate BAC and the hours needed to reach zero. It is an estimate only and must never be used to decide whether it is safe to drive.

How the estimate works

The Widmark formula divides the alcohol consumed by body weight and a distribution factor, about 0.68 for men and 0.55 for women, then subtracts about 0.015 percent per hour for elimination.

Why it is only a guide

Real BAC depends on food, medication, health, drink strength and how quickly you drink. Two people of the same weight can differ widely. Legal limits vary: 0.08 percent in most of the US and England, 0.05 percent in many European countries and Australia.

Safety

The only safe amount before driving is none. Use a taxi or a designated driver.

计算示例

With the boxes at their starting values (Standard drinks (14 g each): 3; Body weight (kg): 75; Sex: Male; Hours since the first drink: 2), the tool shows: As a percent: 0.052%; Hours to reach zero: 3.5; Estimated BAC (%): 0.052. Change any box to see your own numbers. The result updates as you type, and nothing leaves your browser.

获得最佳结果的提示

在相信结果之前先检查每一个输入项，因为一个错误的数字就会改变整个答案。请使用工资单、账单、证书或合同上的准确数字，并记下计算日期。税率、门槛和规则会不时变化，因此对于税费和法律事务，请将结果视为估算，并与本页注明的官方来源核对。您可以尝试任意多个方案；不会保存或发送任何内容，刷新页面会清空输入。