
Of course, happy to help you figure that out!
Calculating the units in a bottle of wine depends on two key things: the size of the bottle and its alcohol strength, or ABV (Alcohol By Volume). A standard bottle of wine is 750ml. Assuming the "10" in your question refers to a wine with a 10% ABV, a 750ml bottle would contain 7.5 units of alcohol.
As the provided NHS guide explains, one unit of alcohol is equal to 10ml of pure alcohol. The number of units can vary quite a bit from one wine to another because their strengths differ. While a lower-strength 10% ABV bottle has 7.5 units, a stronger wine with a 13% ABV would have closer to 10 units in the same size bottle.
Keeping an eye on units is a simple way to track how much you're drinking. The general guidance for both men and women is to not regularly exceed 14 units per week to keep health risks low.


