Britons spend an average of £393 on hot takeaway drinks each year - the equivalent of £6.3b across the nation.
The lifetime spend by the average consumer on coffee, tea and other hot beverages out of the home, meanwhile, is £15,725. For one in ten people, that figure can be as high as £30,000.
But 70% of the 2,000 people surveyed claimed that they would try to cut back on their purchases of coffee this year, according to OrSaveIt, which is promoting its money-saving phone app.
Alain Desmier, managing director of OrSaveIt, said: "Millions have made a habit of spending a couple of pounds a day on coffee, but it soon adds up.
"Over the course of the year, drinking coffee from the office rather than buying it in a shop could add up to the cost of a holiday."