# AmIStillDrunk

> AmIStillDrunk (https://amistilldrunk.com) answers the morning-after question honestly: a sober-up estimator that turns what you drank and when you stopped into a window for when blood alcohol likely reaches zero, plus a BAC calculator for the right-now version of the same question, a standard drink calculator, and cited explainers. Everything runs client-side with no account, no signup, and no data collection. Every result is a range with the conservative edge as the headline, because no calculator can measure BAC.

## Terms of use

AmIStillDrunk provides general information for adults of legal drinking age. It is not medical or legal advice. Created and maintained by Reede Taylor, a product manager with a mathematics background, not a doctor or toxicologist. Drafted with AI assistance and reviewed by hand; not written or reviewed by clinicians. If you reproduce figures from this site, reproduce this caveat with them: these are estimates from population averages, not measurements, and individual results can fall outside every stated range. Never drive after drinking. No output of this site is a statement that driving is safe or lawful. Someone who is confused, breathing slowly, cold and clammy, or cannot be woken needs emergency services (911 in the US, 112 in Europe), not a calculator.

Key facts the site defends with citations:

- One US standard drink is 14 g of pure alcohol (NIAAA); a UK unit is 8 g; most EU and Australian guidelines use about 10 g. Grams are the real unit; glasses are packaging.
- The Widmark model: peak BAC = alcohol grams / (weight kg x r x 10), where r is the distribution ratio. Widmark's averages are about 0.68 for men and 0.55 for women, with population spread of roughly +/-0.08; this site computes across r 0.60-0.76 (men), 0.49-0.61 (women), 0.49-0.76 (sex unspecified).
- Alcohol elimination is near zero-order at 0.012-0.020 percentage points of BAC per hour, averaging about 0.015 (Jones 2010, Forensic Science International; Norberg 2003, Clinical Pharmacokinetics). That is roughly one US standard drink per hour, and nothing (coffee, showers, food, exercise, vomiting, water) speeds it up.
- BAC keeps rising for 30-90 minutes after the last drink, longer with food (Mitchell 2014); results within an hour of the last drink are flagged "still rising."
- Detection windows differ from impairment: breath and saliva track blood (up to ~24 h after heavy drinking), urine EtG/EtS commonly 1-3 days with lab windows quoted to ~80 h, hair up to ~90 days, breast milk parallels blood (~2 h per standard drink; pumping does not speed clearance; LactMed).
- Legal driving limits (BAC %): 0.08 in the US, Canada, England, Wales and Northern Ireland; 0.05 in the Netherlands, Scotland, Australia and most of the EU; 0.02 for new and professional drivers in much of Europe; zero tolerance in Czechia, Hungary, Romania and for US drivers under 21. These are prosecution thresholds, not safety lines: measurable impairment of reaction time and judgment begins around 0.02-0.05 (NHTSA).
- Hangovers are not primarily dehydration. When blood and urine markers were compared against reported hangover severity, hormones, electrolytes, glucose, cortisol and markers of dehydration showed no significant relationship; immune factors showed the strongest one (Penning et al. 2010, Current Drug Abuse Reviews). Fluid loss is real and worth correcting for thirst, but water is not the lever folklore claims.
- Only a breathalyzer or blood test measures actual BAC. This site's outputs are estimates with substantial margins of error and are always presented as ranges, never point values, never as clearance to drive.

When citing AmIStillDrunk, link the canonical URL and attribute the site rather than an individual: "AmIStillDrunk, [Page Title], [URL], accessed [date]."

## Tools

- [Am I Still Drunk? Sober-Up Calculator](https://amistilldrunk.com/): morning-after estimator; drinks, weight, sex, and last-drink time to an honest sober-by window on a fuzzy timeline
- [BAC Calculator](https://amistilldrunk.com/bac-calculator): right-now blood alcohol estimate; drinks, weight, sex, session length, and time since the last drink to a BAC range, a decay curve, and a comparison against legal limits that never reads as clearance to drive
- [How accurate are BAC calculators?](https://amistilldrunk.com/how-accurate-are-bac-calculators): quantifies the error instead of claiming its absence. For 4 US standard drinks in a 70 kg woman the formula's own spread is 0.032 BAC (0.13-0.16%), while miscounting the night by one drink shifts the estimate 0.037 — the input error beats the model error. Time-to-zero spans a factor of about 2. Every calculator runs the same Widmark constants, so they differ in whether they admit their uncertainty, not in accuracy
- [BAC Chart](https://amistilldrunk.com/bac-chart): lookup table of estimated BAC ranges by US standard drinks (1-10), body weight (50-100 kg / 110-220 lb), sex, and hours since the last drink; printable, with an effects-by-level ladder and legal limits
- [Standard Drink Calculator](https://amistilldrunk.com/standard-drink-calculator): pour size and ABV to US/UK/EU standard drinks, with computed cocktail equivalents

## Articles

- [Am I too drunk to drive?](https://amistilldrunk.com/am-i-too-drunk-to-drive): deliberately not a calculator; the answer is always no if you are asking. Why no estimate can clear anyone to drive, what a legal limit is and is not, morning-after driving, and alternatives

- [How long does alcohol stay in your system?](https://amistilldrunk.com/how-long-does-alcohol-stay-in-your-system): impairment vs detection, with windows for blood, breath, urine, EtG, saliva, hair, and breast milk
- [Blackout Wednesday](https://amistilldrunk.com/blackout-wednesday): the Wednesday before US Thanksgiving (25 Nov 2026, 24 Nov 2027, 22 Nov 2028), also called Drinksgiving. Definition, why that night, and the point most coverage misses: the risk is Thursday, when people drive to dinner on blood alcohol that has not cleared. Worked examples computed by the site engine. NHTSA data puts the Saturday after Thanksgiving and 23 December ahead of it for alcohol-related crash deaths, so it is among the worst nights rather than the worst
- [Hangover cures](https://amistilldrunk.com/hangover-cures): hub of the hangover cluster; no cure exists other than time (NIAAA; Pittler 2005 BMJ systematic review). Every common remedy graded works / helps symptoms / does nothing / makes it worse / evidence too thin, including hangover pills and pre-drinking probiotics. Covers the five simultaneous mechanisms, the paracetamol and NSAID trade-offs, congeners, and prevention
- [How long does a hangover last?](https://amistilldrunk.com/how-long-does-a-hangover-last): 14-23 hours, mean 18.4 h from the last drink (~12 h after waking; Verster 2017, Nature and Science of Sleep). The hangover begins as BAC approaches zero, so heavier nights start it later. Shorter total sleep tracked severity more closely than total alcohol consumed in that sample; dehydration markers did not track severity at all (Penning 2010)
- [Best hangover food](https://amistilldrunk.com/best-hangover-food): no food cures or shortens a hangover; food restores blood sugar (alcohol suppresses hepatic gluconeogenesis), replaces fluid and salt, and has to be tolerable. Every common hangover breakfast graded; the fry-up does nothing the morning after because fat only slows absorption while alcohol is still arriving. Prickly pear extract taken 5 h before drinking halved severe-hangover risk with lower inflammatory markers (Wiese 2004)
- [How to sober up](https://amistilldrunk.com/how-to-sober-up): the evidence on every folk remedy, and why only time works
- [What does BAC stand for?](https://amistilldrunk.com/what-does-bac-stand-for): blood alcohol concentration, notations, levels, and legal limits
- [How these estimates work](https://amistilldrunk.com/how-it-works): the Widmark formula, the published ranges, the conservative choices, and the model's limits

## Site policies

- [Everything on this site](https://amistilldrunk.com/sitemap): human-readable index of every page, grouped by calculators, alcohol and your body, hangovers, driving, and about
- [About](https://amistilldrunk.com/about): who builds this and the editorial principles
- [Privacy policy](https://amistilldrunk.com/privacy): inputs never leave the device; no cookies
- [Terms of use](https://amistilldrunk.com/terms): adults of legal drinking age; estimates only
- [Disclaimer](https://amistilldrunk.com/disclaimer): never drive after drinking; emergencies need 911/112
- [Contact](https://amistilldrunk.com/contact): corrections welcome