By the same measure, sales were up 4% in the first five weeks of its new financial year starting 23 February, helped by the early Easter break.
"We begin the new financial year confidently - with a good start in the UK, excellent progress in our established international markets and promising early performance from our investments in future growth, particularly in the United States, China and Turkey," said Terry Leahy, Tesco chief executive.
Tesco opened 19 new Extra stores, 17 superstores and 103 new Express convenience stores, taking the total number of UK stores to 1,608.
It said it was continuing to work with the Competition Commission on the final stages of their investigation into anti-competitive practices in the grocery sector.
Richard Hunter, head of UK equities at Hargreaves Lansdown Stockbrokers, called the figures "sparkling", and said the upbeat forecast "set it apart from the crowd".
For the first time, Tesco's UK network did not make up the bulk of profit growth, with half coming from its stores overseas.
Its expansion drive overseas will continue this year with plans to open 11.5 million square feet of new store space, with 80% of this outside the UK.
Analysts had expected a robust performance from Tesco, but had been concerned about the group's performance in the US, particularly after it was revealed last month that its expansion plans for its Fresh & Easy chain had been put temporarily on hold.
But Mr Leahy said it was only natural that there should be a "pause for breath" after the rapid pace of expansion since the first Fresh & Easy store opened its doors last November
The outlook for the US economy is grim, with many analysts convinced that it has sunk into a recession.
But Tesco said that it was "encouraged" by the performance of the first 60 Fresh & Easy neighbourhood stores, modelled on Tesco Express and located in southern California, Arizona and Nevada.
It said sales at these stores were ahead of budget.
Another 150 are expected to be open by the end of the year.
More details about the performance of Tesco's US business will be available in its half-year report when it will give separate US sales figures for the first time.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.