The tester online is a quick way to check your blood alcohol content. The test is done a online that you check and or type in details about how much you have drunk, what type of alcohol, the strength, etc. and then will calculate an approximate estimate of your blood alcohol concentration.
The conversions are not completely accurate and should not be used to determine if you are capable of driving. There are other factors that would need to be considered, like your gender, height and weight, if you have eaten, how long before your last drink and so on. There best way to get a better reading of your BAC is to have a good quality personal .
Below is a picture of a Bac calculator by DrinkDriving.org that use can use to check your blood alcohol content. Click on the picture and it will take you to the calculator page on our site for your to use.