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Alcohol units when driving

Whenever there’s a reason to celebrate, no one wants to drive. Whether it’s Christmas time or a mate’s birthday, finding a designated driver is difficult but it’s important that your party has one unless you can afford the exuberant taxi charges you’ll face after midnight. The maximum alcohol units when driving depends on a lot of factors. We’ll tell you the max units you can have to drive and a bit about how the blood alcohol limit works in the UK so you can have a great night and then get home safely.
    Getty - Paul J Richards

Drink and drive law

In the UK, the alcohol limit for drivers is set at 80 milligrammes of alcohol per 100 millilitres of blood, 35 microgrammes per 100 millilitres of breath or 107 milligrammes per 100 millilitres of urine. In a lot of other European nations, the limits are set a lot lower.

How much can you drink?

The amount you can consume on a night out if you’re driving home isn’t easily defined as it varies from person to person. There are a lot of factors that come into play including a person’s weight, their gender and their metabolism. Things like your current stress levels and whether you’ve eaten recently can also have a major difference on your blood / alcohol levels. Your age is also a consideration as younger people tend to process alcohol slowly.

Units of alcohol

Although there are many factors that affect the outcome of the breathalyser test, there are a few general rules you can follow to determine how many units of alcohol you can drink if you need to drive. For men, the generally understood maximum amount of alcohol is 4 units. For women, it’s 3 units. If you’d like a more accurate understanding of how much alcohol you can drink before driving, check out the alcohol units calculator at sites like confused.com/car-insurance/alcohol-units-calculator or nhs.uk/Tools/Pages/Alcohol-unit-calculator.

Final word

For more info on the subject, go to drinkaware.co.uk.

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