Best Answer: Generally speaking 15 - 20 drops = 1 mL. So, about 4 to 5 drops should approximate 0.25 mL. However, this is only a guesstimate since there are many factors that contribute to this, including: viscosity of the liquid, dropper size, etc... To measure 0.25 mL more accurately, I would suggest drawing up the liquid into an oral syringe.
What is the legal limit for alcohol and driving? Every state in the US sets the legal limit for blood alcohol content, or BAC, at .08%. This means that if your blood alcohol level is above .08%, you can be arrested in any state in the United States and charged with DUI.
driving under the influence (DUI) n. commonly called drunk driving, it refers to operating a motor vehicle while one's blood alcohol content is above the legal limit set by statute, which supposedly is the level at which a person cannot drive safely. State statutes vary as to what that level is, but it ranges from .08 to .10. Driving on private property such as a parking lot is no defense, but sitting in a non-moving vehicle without the ignition on probably is (sometimes resulting in a charge of drunk in and about a vehicle).