Everything on this site

20 pages: 14 tools and guides, plus the legal and about pages. The menu only has room for six of them.

Calculators

Every one answers with a range, and none of them will clear you to drive.

Am I still drunk?
The morning-after estimator: what you drank, when you stopped, and when it likely clears.
BAC calculator
Blood alcohol for right now, as a range, with the decay curve drawn.
Standard drink calculator
Any pour into US, UK and EU standard drinks, including mixed drinks.
BAC chart
Lookup table by drinks, body weight and hours elapsed. Printable.
How long does alcohol stay in your system?
Detection windows for blood, breath, urine, saliva, hair and breast milk.

What the numbers mean, how the estimates are made, and how wrong they can be.

What does BAC stand for?
The notation, promille conversion, and what each level does.
How to sober up
Coffee, showers, food and sweating, against the evidence.
How accurate are BAC calculators?
Each source of error, sized — including the one that beats the formula.
How these estimates work
The Widmark method, every constant, and every conservative choice.

The evidence-graded version, including the remedies that do nothing.

Hangover cures
Every remedy graded: works, helps, does nothing, or makes it worse.
How long does a hangover last?
14 to 23 hours, and the clock starts later than you think.
Best hangover food
Eleven breakfasts graded, and why the meal before matters most.

One page, one answer, and it does not depend on a number.

Am I too drunk to drive?
If you are asking, don’t drive. Why no calculator can say otherwise.

Who maintains it, what it collects, and the terms it is published under.

There is also a machine-readable sitemap for search engines, and an llms.txt summarising what each page establishes.