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We've used data from the Office for National Statistics (ONS) to figure out how long your lifeline might be.
New stats show that, extraordinarily, one in eight boys and one in five girls are expected to live into triple figures in 2030.
Getting up to 100 has long been considered an impressive feat - so much so that Brits who turn 100 receive a special letter from the monarch to mark the milestone.
Now thousands of babies are expected to get three candles on their cake in later life.
If you're curious to see your what your life expectancy might be, all the information you need is the year you were born and your gender.
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The latest data suggests girls born today are expected to live to an impressive 90-years-old.
This is three years longer than their male counterpart, who on average will reach 86.7.
However this gap is getting smaller and the life-expectancy gap is shrinking as time goes on.
An improvement in mortality rates among people is one of the key assumptions behind the data.
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The figures are only projections as they have been modelled on past trends in annual death registrations and combined with the input from a panel of boffins.
The projections suggest that 17.9 per cent of girls and 11.5 per cent of boys born in 2023 are expected to live to at least the age of 100, increasing to 19.9 per cent and 13.1 per cent respectively for babies born in 2030.
These stats will continue to rise, reaching 24.7 per cent and 17.3 per cent for girls and boys born in 2047.
The ONS said it published the data to "allow us to understand the size of the projected population at older ages, which is important for policy making and service planning."
The figures also suggest that girls born in the UK in 2023 can expect to live on average to an age of 90.0 years and boys to 86.7 years, increasing to 92.2 years and 89.3 years respectively for babies born in 2047.
Females aged 65 in the UK in 2023 can expect to live a further 22.5 years, while males can expect to live another 19.8 years, projected to rise to 24.4 years and 21.8 years respectively by 2047.
The gap between male and female life expectancy at birth has dipped from 4.4 years in 1981 to 3.4 years in 2023 and is projected to fall further in the future.
All data is based on what is known as "cohort life expectancy."
This takes into account mortality patterns of those of the same age.
The ONS said this is a "more realistic measure" of life expectancy, as it reflects likely improvements in mortality in the future, instead of assuming mortality rates will stay the same.
Kerry Gadsdon of the ONS said: "Boys born in the UK in 2023 can expect to live on average to age 86.7 years, and girls to live to 90.0 years, taking into account projected changes in mortality patterns over their lifetime.
"The gap between male and female cohort life expectancy at birth has fallen over the past four decades.
"This is likely due to improvements in lifestyle, for example reduction in smoking rates and the working conditions of men over several decades, as well as advances in healthcare, for example the prevention and treatment of heart disease.
"The gap is projected to be down to 2.5 years by 2072."
While the proportion of babies projected to live to at least 100 years has "increased significantly over time", the latest projections are "slightly lower" than previous estimates, the ONS noted.
Figures published in 2022, using 2020-based population data, projected more than a quarter (27.7 per cent) of girls born in 2047 to live until at least 100, along with more than a fifth (21.5%) of boys.
The new projections, using 2022-based population data, revise these downwards to just under a quarter (24.7 per cent) and about a sixth (17.3 per cent).
In addition, the ONS has revised its assumptions about how the UK's mortality improvement rate will change over time.
Its new projections are based on an annual long-term improvement rate of 1.1 per cent for males and females aged 0 to 90, down from a rate of 1.2 per cent used for the 2020-based projections.
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"This reflects that mortality improvements have been consistently slower for more than 10 years and follows advice from our mortality experts about future rates of improvement," the ONS added.
"However, there is considerable uncertainty about the prospects for mortality improvement rates in the long term and our expert panel noted that these may remain slow at certain ages, or improvements may increase again, through better access to medical advancements or changes to health and social care policy."
