Units and calories in rum
Get the low-down on how many units and calories are in rum-based drinks.
Rum is a spirit made from sugar cane juice or fermented molasses that comes in both white and dark varieties. It’s used in cocktails or mixed drinks but can be served on its own.
A single 25ml measure of 40% Alcohol by Volume (ABV) rum contains one unit.
To keep health risks from alcohol to a low level, it's crucial that you follow the the UK Chief Medical Officers' (CMO) low risk drinking guidelines which advise it is safest not to drink more than 14 units a week on a regular basis.
Drinking 15 25ml measures of 40% ABV rum during a week (or eight double 50ml measures) means you’ll exceed these guidelines. Doing so regularly could increase your chances of developing long-term conditions like heart disease and cancer.
Remember that mixed drinks featuring rum can contain more than one measure, making it harder to stick to the unit guidelines.
Find out more about the health effects of alcohol.
A single 25ml measure of 40% ABV rum contains 61 calories – similar to a digestive biscuit. Don’t forget that in a cocktail the mixer also adds to the overall calorie count.
Just like in other alcoholic drinks, these are ‘empty calories’ with no nutritional value, so don’t benefit your body in any way.
Rum is a spirit, which makes it stronger than many other alcoholic drinks.
It’s easy to check how strong rum is – just look out for the Alcohol by Volume (ABV) on the bottle, or ask at the bar. The ABV tells you what percentage of the drink is alcohol.
For example, a 25ml 40% ABV measure of rum contains 40% pure alcohol. The higher the ABV, the more alcohol is in the rum.
Be aware that some small-batch and artisan rums may feature a higher ABV than traditional brands.
Whether you’re at a pub or a party, it’s smart to see how much rum is going in your drink.
In cocktails ask whether you’re getting a single (25ml), double (50ml) measure – or more. And remember that home-poured drinks can be much stronger than those at a bar.
To make sure you’re not drinking more than you’d like, use these tips: