How long after drinking will I be OK to drive?
A small shot of liquor: 1 hour. A pint of beer: 2 hours. A large glass of wine: 3 hours.
How long until my BAC is 0?
After a big night out you may still be over your legal alcohol limit for much of the next day. After a heavy night of drinking, it can take more than 18 hours for your blood alcohol concentration to get back to zero.
Can I drive after 2 pints UK?
But as a general rule, 2 pints of regular-strength lager or 2 small glasses of wine could put you over the limit. This equates to roughly 4.5 units of alcohol. For more information, check out our alcohol unit calculator. But this isn't a firm rule for everyone.
How long after a drink can you drive UK?
A very approximate guide would be to give yourself an hour per unit of alcohol before driving. For example, if you've had a glass of wine worth 2.8 units, you should wait for about three hours before getting behind the wheel.