What is the difference between DUI and dwi?

a DUI is when you are under the influence of alcohol or any other drugs and it stands for Driving Under the Influence; a DWI is when you are drunk while driving and it stands for Driving While Intoxicated. Both will end in highly priced fines and arrests. its best to be safe then sorry, don't drink and drive.

----To better explain it, DUI is basically drinking and driving with a BAC under your states required level, and or/ under the influence or narcotics, or over the counter/prescription drugs. As a DWI is drinking and driving with a BAC over the limit. Expensive!

The terms DUI and DWI are often used interchangeably. However, the correct term and associated definition depends on your state's specific statutes on driving a vehicle while under the influence of alcohol, drugs, or otherwise impaired. Certain states even refer to it as OVI (operating a vehicle while impaired), OUI (operating under the influence), OWI (operating while intoxicated), and so forth. The penalties associated with the offense differ from state to state, no matter what people call the criminal offense.