My Lancet news sub just lead me to the UK Longevity Explorer. For those of you interested in the research,
For those who just want to jump straight in, be aware that it's intended for 40-70 year-olds. Results may vary.
I'm 52 (how that happened is beyond me!) and my result was "your risk of dying in the next five years is equivalent to the average risk for men aged 58 in the UK." Which they state as being 4.2%.
I'll take those odds!