An online ppm calculator will help you calculate your blood alcohol level and complete elimination time
An online ppm calculator will help you calculate your blood alcohol level and complete elimination time
This calculator provides approximate calculations. Actual values may vary depending on individual characteristics of the body, food intake, medications and other factors. Do not use the results to make driving decisions.
The calculation is based on the Widmark formula, which takes into account gender, weight and amount of alcohol consumed.
The rate of alcohol elimination is approximately 0.15‰ per hour.
Results are approximate and may differ from actual values.
An alcohol calculator is a tool for approximating blood alcohol concentration (BAC) and how long it takes for it to leave the body. The calculator uses Widmark's scientifically proven formula and takes into account individual parameters of a person.
The calculator takes into account gender, body weight, amount and strength of alcohol consumed, as well as the time when drinking began. Based on the Widmark formula, the blood alcohol concentration (BAC) in ppm (‰) is calculated, the state of intoxication is determined, and the time for complete elimination of alcohol from the body is calculated.
Let's look at practical examples of calculating blood alcohol levels for different situations:
Man, 80 kg, drank 500 ml of beer (5% strength) at 20:00
Входные данные:
Gender: male, Weight: 80 kg, Volume: 500 ml, Strength: 5%, Time: 20:00Расчёт:
Pure alcohol: 500 × 0.05 × 0.789 = 19.7 g BAC = (19.7 / (0.7 × 80000)) × 1000 = 0.35‰BAC:
BAC: 0.35‰ (slight relaxation)
Состояние:
Light relaxation (0.3-0.5‰)
Время выведения:
Elimination time: ~2.5 hours (up to 0‰)
Woman, 65 kg, drank 250 ml of wine (12% ABV) at 19:00
Входные данные:
Gender: woman, Weight: 65 kg, Volume: 250 ml, Strength: 12%, Time: 19:00Расчёт:
Pure alcohol: 250 × 0.12 × 0.789 = 23.7 g BAC = (23.7 / (0.6 × 65000)) × 1000 = 0.61‰BAC:
BAC: 0.61‰ (mild intoxication)
Состояние:
Mild intoxication (0.5-1.0‰)
Время выведения:
Elimination time: ~4 hours (up to 0‰)
Man, 90 kg, drank 100 ml of vodka (40% strength) at 21:00
Входные данные:
Gender: male, Weight: 90 kg, Volume: 100 ml, Strength: 40%, Time: 21:00Расчёт:
Pure alcohol: 100 × 0.40 × 0.789 = 31.6 g BAC = (31.6 / (0.7 × 90000)) × 1000 = 0.50‰BAC:
BAC: 0.50‰ (slight relaxation)
Состояние:
Light relaxation (0.3-0.5‰)
Время выведения:
Elimination time: ~3.5 hours (up to 0‰)
Woman, 60 kg, drank 2 glasses of wine, 150 ml (12%) at 18:00
Входные данные:
Gender: woman, Weight: 60 kg, Volume: 300 ml (2×150), Strength: 12%, Time: 18:00Расчёт:
Pure alcohol: 300 × 0.12 × 0.789 = 28.4 g BAC = (28.4 / (0.6 × 60000)) × 1000 = 0.79‰BAC:
BAC: 0.79‰ (mild intoxication)
Состояние:
Mild intoxication (0.5-1.0‰)
Время выведения:
Elimination time: ~5.5 hours (up to 0‰)
Man, 85 kg, drank 2 liters of beer (5%) at 19:30
Входные данные:
Gender: male, Weight: 85 kg, Volume: 2000 ml, Strength: 5%, Time: 19:30Расчёт:
Pure alcohol: 2000 × 0.05 × 0.789 = 78.9 g BAC = (78.9 / (0.7 × 85000)) × 1000 = 1.33‰BAC:
BAC: 1.33‰ (average intoxication)
Состояние:
Average intoxication (1.0-2.0‰)
Время выведения:
Elimination time: ~9 hours (up to 0‰)
Woman, 55 kg, drank a 200 ml cocktail (15% strength) at 20:30
Входные данные:
Gender: woman, Weight: 55 kg, Volume: 200 ml, Strength: 15%, Time: 20:30Расчёт:
Pure alcohol: 200 × 0.15 × 0.789 = 23.7 g BAC = (23.7 / (0.6 × 55000)) × 1000 = 0.72‰BAC:
BAC: 0.72‰ (mild intoxication)
Состояние:
Mild intoxication (0.5-1.0‰)
Время выведения:
Elimination time: ~5 hours (up to 0‰)
| Level (‰) | State | Description |
|---|---|---|
| 0.0‰ - 0.3‰ | Трезвое состояние | Полное отсутствие алкоголя в крови |
| 0.3‰ - 0.5‰ | Лёгкое расслабление | Минимальное воздействие алкоголя |
| 0.5‰ - 1.0‰ | Лёгкое опьянение | Начальные признаки опьянения |
| 1.0‰ - 2.0‰ | Среднее опьянение | Заметное нарушение координации |
| 2.0‰ - 3.0‰ | Сильное опьянение | Серьёзное нарушение функций |
| 3.0‰ - 4.0‰ | Тяжёлое отравление алкоголем | Опасное для здоровья состояние |
| 4.0‰ - ∞ | Опасное для жизни состояние | Критическое состояние, требуется медицинская помощь |
The calculation is based on the Widmark formula, which takes into account the amount of pure alcohol, body weight and the distribution coefficient of alcohol in the body.
BAC = (A / (r × W)) × 1000A — amount of pure alcohol in grams
r — distribution coefficient (men: 0.7, women: 0.6)
W — body weight in grams
Alcohol is eliminated from the body at a constant rate of approximately 0.15‰ per hour. This value may vary depending on individual characteristics.
The average rate of alcohol elimination is 0.15‰ per hour
The rate of elimination is affected by age, gender, weight, liver condition and other factors.
Driving while intoxicated is extremely dangerous and is prohibited by law. Even small amounts of alcohol can significantly impair reaction and coordination.
Never drive after drinking alcohol. Even if the calculation shows an acceptable level, your reaction may be slowed down.
To calculate ppm, use an alcohol calculator: enter gender (male/female), body weight in kilograms, volume of drink consumed in milliliters, drink strength in percentage and time of start of drinking. The calculator will automatically calculate your blood alcohol concentration (BAC) in ppm (‰) using the Widmark formula. For example, for a man of 80 kg who drinks 500 ml of 5% beer, the result will be approximately 0.35‰.
Promille (‰) is a unit of measurement of blood alcohol concentration equal to 1/1000th of a part. 1 ppm means that a liter of blood contains 1 gram of pure alcohol. PPM is measured using a breathalyzer (breath test) or blood test. The online ppm calculator allows you to calculate the approximate BAC level based on the Widmark formula without the use of special equipment.
The Widmark formula calculates blood alcohol concentration (BAC) using the formula: BAC = (A / (r × W)) × 1000, where A is the amount of pure alcohol in grams, r is the distribution coefficient (0.7 for men, 0.6 for women), W is body weight in grams. Pure alcohol is calculated as: volume of drink × strength (%) × 0.789 (density of alcohol). This formula gives an approximate estimate of BAC.
The time for complete elimination of alcohol depends on the BAC level and the rate of elimination, which is approximately 0.15‰ per hour. For example, at a BAC of 0.5‰, alcohol is eliminated in ~3.5 hours, at 1.0‰ in ~7 hours, and at 1.5‰ in ~10 hours. Women eliminate alcohol more slowly due to differences in metabolism. Complete elimination means a reduction in BAC to 0‰.
The calculation of ppm is approximate because the concentration of alcohol in the blood is influenced by many factors: the rate of alcohol absorption (depending on food intake, type of drink), individual metabolic characteristics, liver condition, age, taking medications, chronic diseases, the phase of the menstrual cycle in women. Widmark's formula does not take these factors into account and gives an average statistical estimate.
The permissible ppm limit for driving varies by country: in most European countries - 0.5‰, in Russia - 0.0‰ (zero tolerance), in the USA - 0.08% (approximately 0.8‰), in some countries - 0.2‰. However, even at acceptable levels, reaction and coordination may be impaired. It is important to remember: if you have been drinking alcohol, it is better not to drive at all.
Permille (‰) and percentage (%) are different units of measurement. Permille is 1/1000 of a fraction, percentage is 1/100 of a fraction. 1 ppm = 0.1%. BAC is measured in ppm (for example, 0.5‰), the strength of drinks is measured in percentage (for example, beer 5%, wine 12%). For driving in the USA the percentage used is: 0.08% BAC = 0.8‰. The alcohol calculator shows the result in ppm, as this is the standard for most countries.
Gender influences the calculation of ppm through the alcohol distribution coefficient (r): for men r = 0.7, for women r = 0.6. This means that for the same amount of alcohol, women will have a higher BAC because they have less water in their bodies and metabolize alcohol more slowly. For example, when drinking 250 ml of 12% wine, a 65 kg woman will receive a BAC of ~0.61‰, and a man of the same weight will receive ~0.49‰. The alcohol calculator takes this difference into account.
Alcohol elimination time is calculated based on an elimination rate of 0.15‰ per hour. Formula: elimination time (hours) = BAC (‰) / 0.15. For example, with a BAC of 0.75‰: time = 0.75 / 0.15 = 5 hours. The ppm calculator automatically calculates the time for complete elimination to 0‰. It is important to consider that the elimination rate can vary from 0.10 to 0.20‰/hour, depending on individual characteristics.
Yes, body weight has a significant effect on your ppm alcohol level. For the same amount of alcohol, a heavier person will have a lower BAC because the alcohol is distributed over a larger volume of the body. Widmark's formula takes into account weight in the denominator: BAC = (A / (r × W)) × 1000. For example, with 100 ml of vodka 40%: a 60 kg man will receive a BAC of ~0.75‰, a 90 kg man will receive a BAC of ~0.50‰. The alcohol calculator takes body weight into account in its calculations.
To convert ppm to grams of pure alcohol, the inverse Widmark formula is used: A = BAC × r × W / 1000, where A is pure alcohol in grams, BAC is ppm, r is the coefficient (0.7 men, 0.6 women), W is weight in grams. For example, for an 80 kg man with a BAC of 0.5‰: A = 0.5 × 0.7 × 80000 / 1000 = 28 grams of pure alcohol. This is equivalent to approximately 90 ml of vodka 40% or 350 ml of beer 5%.
Permille levels correspond to different states of intoxication: 0.0-0.3‰ - sober state, 0.3-0.5‰ - slight relaxation (minimal impact), 0.5-1.0‰ - mild intoxication (initial signs), 1.0-2.0‰ - moderate intoxication (noticeable loss of coordination), 2.0-3.0‰ - severe intoxication (serious dysfunction), 3.0-4.0‰ - severe poisoning (hazardous to health), 4.0‰+ - critical condition (life-threatening). The alcohol calculator shows the corresponding status.
Yes, you can calculate ppm manually using the Widmark formula: 1) Calculate pure alcohol: volume (ml) × strength (%) × 0.789; 2) Determine the coefficient r (0.7 for men, 0.6 for women); 3) Calculate BAC = (pure alcohol / (r × weight in grams)) × 1000. For example, man 75 kg, 500 ml beer 5%: alcohol = 500 × 0.05 × 0.789 = 19.7 g; BAC = (19.7 / (0.7 × 75000)) × 1000 = 0.38‰. The alcohol calculator does this automatically.
Eating food slows the absorption of alcohol into the bloodstream, resulting in a slower rise in BAC and a lower peak level. On an empty stomach, alcohol is absorbed faster, BAC reaches its maximum faster (after 30-60 minutes), on a full stomach - more slowly (after 1-2 hours). Widmark's formula does not take into account food intake, so the calculation gives an average estimate. For a more accurate result, keep in mind that on a full stomach, BAC may be 20-30% lower.
BAC (Blood Alcohol Concentration) is the concentration of alcohol in the blood, measured in ppm (‰). BAC and ppm are the same thing, just ppm is the Russian unit of measurement for BAC. In English-speaking countries the percentage is sometimes used: 0.08% BAC = 0.8‰. The alcohol calculator shows BAC in ppm (‰), which is the standard in Russia and most European countries. 1 ppm = 0.1% = 1 gram of alcohol per liter of blood.
A BAC level above 2.0-3.0‰ (severe intoxication) is considered hazardous to health: coordination and speech are impaired, nausea, vomiting, and loss of consciousness may occur. Levels above 3.0-4.0‰ (severe poisoning) are dangerous to health: respiratory depression, risk of aspiration of vomit, risk of injury. Levels above 4.0‰ are critically life-threatening: coma, respiratory arrest, and death are possible. The alcohol calculator shows warnings for dangerous BAC levels.
Yes, age affects the rate at which alcohol is eliminated. With age, liver function decreases and metabolism slows down, so older people eliminate alcohol more slowly. Young people (under 25 years old) may have a faster metabolism, but this varies from person to person. The Widmark formula does not take age into account and uses an average elimination rate of 0.15‰/hour. In older people, the rate can be 0.10-0.12‰/hour, in young people - up to 0.18-0.20‰/hour.
To calculate the ppm of several drinks, calculate the pure alcohol for each drink separately, then add up. Formula: amount of alcohol = (volume1 × abv1 × 0.789) + (volume2 × abv2 × 0.789) + ... Then use Widmark's formula: BAC = (sum of alcohol / (r × weight)) × 1000. For example, 80 kg man: 500 ml beer 5% (19.7 g) + 100 ml vodka 40% (31.6 g) = 51.3 g alcohol; BAC = (51.3 / (0.7 × 80000)) × 1000 = 0.92‰. The alcohol calculator allows you to enter multiple drinks.
The alcohol distribution coefficient (r) in the Widmark formula reflects the ratio of water content in the body. For men, r = 0.7 (70% water in the body), for women, r = 0.6 (60% water). Alcohol is water soluble, so women with less water will have a higher BAC for the same amount of alcohol. This coefficient was empirically determined by the Swedish scientist Erik Widmark. The alcohol calculator uses these standard ratios.
The alcohol calculator can be used as a guide, but NOT to make driving decisions. Calculation is approximate and may differ from actual BAC. Even if the calculator shows an acceptable level (for example, 0.3‰), the response may be slow. The safest thing to do is not to drive at all after drinking alcohol. It is better to use a calculator to plan the time after which it is safe to drive (when the BAC is definitely 0‰).
In women, alcohol is excreted more slowly due to: lower water content in the body (coefficient 0.6 versus 0.7 in men), lower activity of the alcohol dehydrogenase enzyme, and hormonal factors. With the same amount of alcohol in women: BAC is higher (15-20%), elimination time is longer, the effects of alcohol are greater. For example, with 250 ml of wine 12%: woman 65 kg - BAC 0.61‰, excretion ~4 hours; man 65 kg - BAC 0.49‰, excretion ~3.5 hours. The alcohol calculator takes these differences into account.
If the ppm exceeds the permissible limit (in Russia 0.0‰, in most countries 0.5‰), do not drive under any circumstances. Use a taxi, public transport, or ask a sober driver. Wait until the alcohol is completely removed (to 0‰). Calculate your elimination time: if your BAC is 0.8‰, it will take about 5-6 hours to reach 0‰. Remember: driving while intoxicated is a serious crime that results in loss of license and criminal liability.
The strength of the drink directly affects the amount of pure alcohol and the ppm level. The higher the strength, the more alcohol in the same volume. Formula: alcohol = volume × strength × 0.789. For example, 500 ml: beer 5% = 19.7 g of alcohol, wine 12% = 47.3 g, vodka 40% = 157.8 g. With the same volume, 40% vodka will give 8 times more ppm than 5% beer. Man 80 kg: 500 ml beer 5% = 0.35‰, 500 ml wine 12% = 0.85‰, 500 ml vodka 40% = 2.81‰. The alcohol calculator takes into account the strength in the calculations.
The table of conditions by BAC level shows the correspondence between the concentration of alcohol in the blood (ppm) and the physiological state of a person: 0.0-0.3‰ - sober state, 0.3-0.5‰ - slight relaxation, 0.5-1.0‰ - mild intoxication (impaired attention), 1.0-2.0‰ - moderate intoxication (noticeable loss of coordination), 2.0-3.0‰ - severe intoxication (serious violations), 3.0-4.0‰ - severe poisoning (dangerous), 4.0‰+ - critical condition (life-threatening). The alcohol calculator determines the status based on the calculated BAC.
Yes, rate of drinking affects peak BAC levels. When consumed quickly (in a short time), alcohol is absorbed faster, BAC reaches maximum faster and may be higher. With slow consumption (extended over time), alcohol is partially eliminated during consumption, peak BAC is lower, but the period of increased BAC is longer. Widmark's formula calculates maximum BAC assuming immediate absorption. In reality, when taken slowly, peak BAC can be 10-20% lower.
Alcohol remains in the blood until complete elimination, which occurs at a rate of 0.15‰ per hour. The time depends on the BAC level: at 0.5‰ - ~3.5 hours, at 1.0‰ - ~7 hours, at 1.5‰ - ~10 hours, at 2.0‰ - ~13 hours. Women have a longer elimination time due to their slower metabolism. Alcohol is completely eliminated when the BAC reaches 0‰. A breathalyzer may show traces of alcohol 12-24 hours after consumption, but these are residual traces that do not affect the condition.
No, you cannot significantly speed up the elimination of alcohol from the body. The excretion rate is constant (0.15‰/hour) and depends on liver metabolism. Coffee, cold showers, physical activity do NOT speed up elimination, they may temporarily perk you up, but they do not reduce BAC. The only thing that helps is time. The body must metabolize alcohol through the liver. Some drugs can affect metabolism, but this is dangerous and not recommended. The best way is to wait the required time.
The accuracy of the alcohol calculator can be verified by comparison with a professional breathalyzer or a blood test at a medical facility. However, remember that the online calculator gives an approximate estimate using the Widmark formula; actual BAC may differ by ±20-30% due to individual factors (absorption rate, food intake, medications, health status). To accurately determine your BAC, use a professional breathalyzer or blood test. The calculator is useful for planning and rough estimates, but does not replace medical analysis.
Residual alcohol is the minimal traces of alcohol in the blood after its main elimination. The residual level is usually below 0.1-0.2‰ and does not affect the condition and reaction. In Russia, the permissible limit is 0.0‰, so even residual alcohol is considered a violation. Residual alcohol can be detected by a breathalyzer within 12-24 hours after consumption, especially after large amounts of alcohol. It takes 24-48 hours after the last drink to completely remove residual alcohol.
Medicines can affect the metabolism of alcohol and the accuracy of the calculation of ppm: some slow down elimination (some antibiotics, antifungals), others can enhance the effect of alcohol (sedatives, antihistamines). The Widmark formula does not take medications into account, so the calculation may not be accurate. When taking medications, it is better not to drink alcohol at all, as it can be dangerous to health. If you are taking medications, the calculator's results may be less accurate.
*Время выведения при скорости 0.15‰/час до полного выведения (0‰)