Promillerechner Switzerland

Drinking and driving is not a good idea. But if you've only had a little beer or wine with dinner, you can still drive home without any problems, right?

The answer to this question is not quite so simple. That is why we have Per mille calculator Switzerland with which you can easily find out whether you can still drive in Switzerland (or from when you can drive again).

If you have any more questions on the topic, we look forward to an exchange in the comments!

Quick guide to the alcohol calculator

To find out how many per mille you currently have in your blood, you need to enter a few details into the calculator.

First you have to choose whether you Beer, wine or spirits and how much of it you drank.

As many factors can influence the breakdown of alcohol (we'll come to this in a moment), you also need to analyse your Your age, weight, height and gender enter.

And also important, of course, how much time has passed since your last drink. So you still have to choose when you had your last drink.

It will then calculate how much alcohol you have consumed, how many per mille this has led to and how long it will take for the alcohol to be completely broken down. Of course, these are all just estimates and are not guaranteed.

Important information on the alcohol reduction calculator and alcohol calculator Switzerland

In addition to the alcohol reduction calculator, you should also have a little background knowledge so that you know when to use the alcohol calculator.

Blood alcohol limit in Switzerland - how much is allowed?

In Switzerland there is a Blood alcohol limit of 0.5. This means that you are still allowed to drive if you have less than 0.5 per mille in your blood.

For New driver however, a 0-tolerance. This means that for the first 3 years after your driving test, you are not allowed to drive at all if you have been drinking alcohol. During this time, you have a probationary driving licence, which is immediately revoked if you are caught drinking and driving.

How long does alcohol stay in the blood?

Even if you have drunk a lot of alcohol and are definitely over the drink-drive limit, you will be allowed to drive again after a certain period of time. This is because the alcohol is slowly broken down again, so that after a while your blood alcohol level is back below 0.5 and eventually back to 0.

As a rule of thumb, you can remember that 0.1 to 0.2 per mille per hour degraded becomes. So if you had 1 per mille, you have to wait 5 hours until you are allowed to drive again according to the 0.5 limit.
However, it is safer if you wait longer or simply leave the car parked.

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Calculate alcohol breakdown and residual alcohol

So that you can estimate a little more precisely how much Residual alcohol you still have in your blood, let's look next at how the Alcohol degradation works and how you can calculate the residual alcohol.

Alcohol is broken down by the liver. On average, this happens a little faster in men. There are various reasons for this and other factors can also play a role, e.g:

Gender: Women often have a higher body fat percentage and a lower fluid percentage, which leads to a higher blood alcohol level and slower metabolisation.
Weight and size: Heavier and taller people have more blood volume, which dilutes the alcohol more.
State of health: Liver disease or other health problems can slow down the breakdown of alcohol.
Food intake: A full meal before or during alcohol consumption can slow down the breakdown of alcohol, as the alcohol is absorbed more slowly into the bloodstream.

There is a general Alcohol per mille formula for determining the blood alcohol concentration (BAC). This is:

A : (p x r)

The letters stand for:

A: alcohol ingested in grams
p: Body weight in kilograms
r: reduction factor (0.7 for men, 0.6 for women)

Essential more uncomplicated but of course this is possible with our Alcohol reduction calculator.

With this background knowledge, let's take a look at the blood alcohol content of the most common alcoholic drinks so that you can better judge when you are allowed to drive again.

How many per mille does a beer have?

A Standard beer (3 dl) has about 0.2 to 0.5 per milledepending on the alcohol content. This is an average value.
For heavier and taller men, the influence is more likely to be in the range of 0.2 to 0.3 per mille. For smaller and lighter women, on the other hand, the 0.5 per mille limit is reached more quickly.

How many per mille does a glass of wine have?

With a glass of wine (2 dl) is the per mille content is already somewhat higher and averages between 0.6 and 0.8. This means you'll have to wait between one and three hours before you can get behind the wheel again.

How many per mille does an Aperol Spritz have?

A glass of beer or wine with dinner is almost normal in some circles and is often mistakenly not regarded as impaired driving. And what about an aperitif drink? A Aperol Spritz (3 dl) has about 0.7 per mille alcohol.

However, this value can vary greatly, as it depends in particular on the method of preparation. Depending on how much Aperol and Prosecco is added, the drink can also contain significantly more per mille.

How many per mille does a schnapps have?

It is well known that schnapps has the highest alcohol content. So how many per mille do you have afterwards? That depends on the type of schnapps, of course, but an average Shot with 40% alcohol (4 cl) has approx. 0.4 per mille.
Just one drink, but after two at the latest, driving is taboo.

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Consequences of drink driving

If you were driving with more than 0.5 per mille, you could face consequences of Fines up to imprisonment. Incidentally, there are similar consequences if you were travelling too fast. You can find out more about this in our fine calculator.

Here is an overview of the Penalties depending on the amount of the per mille limit exceeded:

0.5 to 0.79 per mille

With a blood alcohol level between 0.5 and 0.79 per mille threat in Switzerland Buses and a Warning. Also a Driving licence withdrawal is possible. In addition, this can lead to an entry in your criminal record, which you probably don't want.

0.8 - 1.59 per mille

If the blood alcohol level is between 0.8 and 1.59 per millethe penalties increase considerably. In addition to high fines and a longer driving licence disqualification are also Traffic psychological examinations (MPU) required. Repeat offenders can expect even stricter penalties.

From 1.6 per mille

When you work with more than 1.6 per mille on the road, it becomes really unpleasant. This is considered a serious offence. In addition to the penalties mentioned above, there is also the threat of Prison sentences. It can also lead to a permanent withdrawal of the driving licence and extensive measures must be taken to regain the driving licence.

As you can see, it really isn't worth travelling with too much alcohol in your blood.

FAQ

How much is 1% to per mille?

1% is 1/100. 1 per mille is 1/1000. 1% therefore corresponds to 10 per mille.

How do I calculate my per mille?

The best way to do this is with our alcohol calculator. Simply enter what you have drunk, your weight, height, age and gender and how long it has been since your last drink. This will give you an estimate of how many per mille you still have in your blood and how long it will take for the remaining alcohol to be completely broken down.

How many per mille are you allowed to have in Switzerland?

In Switzerland, the blood alcohol limit is 0.5. If you have more than this, you are no longer allowed to drive until your blood alcohol level falls below this limit.

As a new driver, there is even a zero tolerance. In theory, this means that you can have a maximum of 0.1 per mille in your blood. This is because the digestion of certain foods, such as fruit, can also produce a small amount of alcohol.

How much alcohol is 0.5 per mille?

This depends on many factors. Women or smaller and lighter people tend to have a higher blood alcohol level more quickly due to the lower liquid content. Men or larger and heavier people, on the other hand, usually have a lower result with the same consumption.

Roughly speaking, you will end up with 0.5 per mille if you have drunk a small beer (3 dl), a small glass of wine (1dl) or a shot of schnapps (4cl).

Do you find such Calculators practical? You can find more here:

Disclaimer: The results of this per mille calculator are for guidance only and are not intended to be an exact measurement or legal advice. We accept no liability for the accuracy or completeness of the calculated values. The calculator is not a substitute for professional medical assessment or legal advice. Any decisions or actions taken based on the information provided here are solely your own responsibility. We strongly recommend that you seek professional advice before driving a vehicle or participating in activities that require clear judgement. The use of this calculator is not a substitute for a legal assessment in the event of a traffic offence or a medical assessment of your own state of health.