Drink Drive Limit Calculator

Alcohol driving calculator

Driving a vehicle whilst over the legal limit for alcohol is a serious offence. In the UK, thousands of motorists are found guilty of drink driving related offences each year. Whilst there are inevitably some motorists who blatantly and knowingly break the law by operating a vehicle whilst intoxicated, it is often the case for many that they are unaware of the fact that they may be over the legal limit. One of the most common examples of this is those who are caught by police officers the day after consuming alcohol. Alcohol can stay in a person’s body for a number of hours after it is consumed, meaning it can still show on a breath, blood or urine test hours after drinking. Even after a good night’s sleep, you could still be over the limit the morning after drinking – even if you ‘feel’ completely sober.

In order to avoid breaking the law, and avoid a penalty or conviction for drink driving, it’s important to ensure that your body is completely alcohol free before you drive. In order to help you do this, we’ve developed the drink driving calculator, below. Simply enter the type and number of alcoholic drinks that you have consumed, and the calculator will suggest the amount of time that you should wait before operating a vehicle.

Drink Driving Limits

The current drink driving alcohol limits for motorists in England and Wales are as follows:

  • 35 micrograms of alcohol per 100ml of breath
  • 80mg of alcohol per 100ml of blood
  • 107mg of alcohol per 100ml of urine.

If you are found to exceed the legal limit whilst operating or being in charge of a vehicle, then you could be charged and convicted of a drink driving offence. If you are accused of drink driving, then the knowledge and expertise of a specialist solicitor could help to reduce your sentence or avoid a penalty completely.

M.A.J. Law is a market leading drink driving defence firm.

Our specialist team of drink driving solicitors have got the knowledge, experience and expertise to help with your drink driving case. We can advise what is likely to happen in court, and what your best options may be.

Call us for your free consultation:

0151 422 8020


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The above blood alcohol calculator should be used as a guideline only, and not as an exact measure of blood alcohol levels or sobriety. M.A.J. Law do not hold any responsibility for the results provided by this tool. You should always seek professional legal advice if faced with a drink driving charge. If in doubt as to whether or not you are fit to drive a vehicle, it is better to be safe than to take risks.

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