The Office for National Statistics experts base their projections on current and future survival trends.
And if their calculations are borne out, more than 95,000 of those who turn 65 this year can expect to celebrate their 100th birthday in 2047.
The number of centenarians has been steadily increasing - from 600 in 1961 to nearly 13,000 in 2010.
In 2012, the figure is expected to hit 14,500, and by 2035 will have breached the 100,000 mark.
And more of these will be women than men.
In 2012 there are 826,000 babies aged under one year. Although more are boys - 423,000 compared to 403,000 girls - the survival odds are greater for females. Women have higher life expectancies than men at every age.
Of those born in 2012, 135,000 men and 156,000 women are expected to still be alive by age 100.
The report -What are the Chances of Surviving to Age 100?- comes as ministers have pledged to double funding for dementia research in the UK.
In the next decade, the number with the disease - mostly elderly - is expected to top one million.

The site's new owners, City & Country Group, have invited people to share their thoughts on what should happen to the 220-year-old building.
Some 320 inmates were held inside until March 2013 when it closed.
Helen Moore, from City & Country, said they wanted to deliver a new scheme which would play "a significant role in the greater regeneration" of the area.
Previous suggestions for the site, which is in the heart of the city and adjacent to Gloucester Docks, have included housing, a museum and a hotel complex.

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A third of babies born in 2012 in the UK are expected to live to 100, according to a new report.
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Cells inside the redundant Gloucester Prison have been opened as part of a consultation on its future use.
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Each day we feature a photograph sent in from across England - the gallery will grow during the week.