Interactive map
Hover or tap a highlight
Hover, focus, or tap a colored organ to update the explainer card.
Select a body dot
Hover, focus, or tap a colored dot to see the explanation.
Beer impact explorer
See where beers land on the body
Hover or tap the highlighted organs for a simple explanation, then use the formula section below when you want the math and the references.
Need the full calculator?
Jump back to the main beer calculator for serving-size comparisons, calories, carbs, and the broader sleep timeline.
Open the main beer calculator1 beer = 355 mL at 5% ABV
Inputs
Tune the estimate
1 beer
110
70 kg
Pure alcohol:14 g
Est. blood level:0.014%
Clearance:1.4 hr
Note: These outputs are educational estimates for informational purposes only for people aged 18+, not a legal impairment meter, drink-driving guide, or medical advice tool. [Read Full Terms & conditions]
Brain & focus
- Estimated blood alcohol concentration: ~0.014% after 1 hour
- Very low blood alcohol level, but mild reaction slowing can still happen.
- Based on a 70 kg male profile.
Heart + overnight recovery
- Sleeping heart rate: +5 bpm
- Overnight : -14%
- delay estimate: 14 min
Liver clearance
- Estimated clearance window: 1.4 hr
- Modeled clearance rate: 10 g/hr
- More drinks mostly add time rather than extra room.
Kidneys & hydration
- Extra urine pushed by alcohol: 140 mL
- Net short-term fluid balance: +215 mL
- This is why beer can feel wet up front and dry later.
How it is calculated
Formula details for each highlighted body part
Each body part below shows the equation or model, the current values, and the source links behind it.
How it is calculated
Formula details for each highlighted body part
Each body part below shows the equation or model, the current values, and the source links behind it.
Brain
Blood alcohol concentration estimate
Concentration = (A / (r × W × 10)) - (β × T)
Using your current selection
(14 / (0.7 × 70 × 10)) - (0.015 × 1) = 0.014%
A = pure alcohol
14 g
r = body-water factor
0.7
W = body weight
70 kg
T = observation window
1 hr
Kidneys
Diuretic output and net fluid balance
Excess urine (mL) ≈ 10 × A
Net fluid (mL) = V - excess urine
Using your current selection
Excess urine = 10 × 14 = 140 mL
Net fluid = 355 mL - 140 mL = +215 mL
A = pure alcohol
14 g
V = beer volume
355 mL
Extra urine
140 mL
Replace with water
0.6 × 250 mL
Liver
Clearance-time estimate
Clearance time (hr) = A / C
Using your current selection
14 g / 10 g/hr = 1.4 hr
A = pure alcohol
14 g
C = clearance pace
10 g/hr
Profile
Man
Result
1.4 hr
Heart + recovery
Recovery-load model
Body water (L) = weight × ratio
Load index = A / body water
Using your current selection
Body water = 70 × 0.58 = 40.6 L
Load index = 14 g / 40.6 L = 0.3
Dose tier = Moderate dose
REM delay
14 min
Sleeping heart rate
+5 bpm
HRV shift
-14%
Dose tier
Moderate dose
Sources
Reference directory
The formula cards above map to the source cards here.
Sources
Reference directory
The formula cards above map to the source cards here.
PubMed / Jones (2019)
Widmark review and forensic context
NHTSA
Psychomotor and cognitive impairment review
Mayo Clinic
Alcohol as a diuretic
NIAAA
Alcohol metabolism mechanics
PubMed / Holford (1987)
Clinical pharmacokinetics of ethanol
PubMed / Jones (2010)
Human ethanol elimination rates
Harvard Health
Alcohol and sleep disruption
Sleep Medicine Reviews / PubMed
REM delay meta-analysis
PLOS Digital Health
Wearable cardiovascular sleep study
This page is an educational estimate for adults, not a medical device, legal impairment meter, or drink-driving guide.
Calculator terms and conditions
This page is educational and not a medical service.
Calculator terms and conditions
This page is educational and not a medical service.
1. General & Educational Purpose Only
This tool is an informational and educational estimator, not a medical device, clinical service, or diagnostic tool. It is designed solely to illustrate broad, population-level patterns around ethanol dose, hydration strain, recovery load, sleep disruption, and spirit roughness based on user-selected inputs.
2. Clinical & Biological Limitations
Individual alcohol metabolism varies drastically based on factors not captured by this tool, including but not limited to: prescription or over-the-counter medications, biological sex, personal tolerance, liver and kidney function, recent food and water intake, pregnancy or nursing status, sleep debt, underlying health conditions, and genetic enzyme variations (such as ADH and ALDH polymorphisms). Output data does not reflect your specific physiological state.
3. No Medical Advice or Emergency Care
Nothing on this website constitutes professional medical advice, examination, diagnosis, or treatment. Never disregard or delay seeking professional medical advice because of an output from this calculator.
- If you believe you or someone else is experiencing alcohol poisoning, an adverse drug interaction, or any medical emergency, call your local emergency services (e.g., 911, 999, 112) or go to the nearest emergency room immediately.
- If you have concerns regarding alcohol dependence or substance use, please consult a licensed healthcare professional or contact a national substance support helpline.
4. Driving, Operating Machinery, and Safety-Critical Tasks
Never use this calculator to determine whether you are fit, safe, or legally permitted to drive, operate machinery, work, or supervise others.
Outputs are purely theoretical estimates and cannot predict blood alcohol concentration (BAC) or physical/cognitive impairment accurately. This tool cannot be used as evidence, verification, or a legal defense against driving under the influence (DUI/DWI) or any safety violation.
5. Age Requirement and Lawful Use
This calculator contains alcohol-related educational material and is intended exclusively for individuals who are at least 18 years of age or the legal drinking age in their jurisdiction, whichever is greater. Use of this calculator does not encourage, condone, or promote alcohol consumption, binge drinking, underage drinking, or any unlawful conduct.
6. "As Is" Warranty Disclaimer
To the maximum extent permitted by applicable law, this calculator and its outputs are provided on an "AS IS" and "AS AVAILABLE" basis without warranties of any kind, whether express, implied, or statutory, including but not limited to warranties of accuracy, completeness, reliability, fitness for a particular purpose, or non-infringement.
7. Limitation of Liability
To the fullest extent permitted by applicable law, the site owner, creators, contributors, and data providers shall not be liable for any direct, indirect, incidental, consequential, special, punitive, or reliance-based damages, losses, personal injury, property damage, fines, or legal penalties arising out of or in connection with your use of, or inability to use, this calculator. You assume full, sole responsibility for any decisions made or actions taken based on these outputs.