The dumb thing about these kinds of websites is that they're based on current actuarial tables for a handful of factors. In reality, stuff like your job, your country, and your income have way more to do with how long you'll live than any of these. Also, actuarial tables are inherently biased because we can't account for what innovations in medical science and technology will happen in the next 76 years, meaning that our margin of error for an infant born today might be as bad as 50%.
