Don’t get so sad. A life expectancy calculator is a nice idea, but frankly the idea is a bit silly. It doesn't take accidents into account, or infections, or genetically acquired conditions – and some of the life expectancy calculator sites basically tell you that next Friday you'll be killed in the zombie Apocalypse. However, a new one, the Living to 100 Life Expectancy Calculator, is more of a questionnaire about your healthy habits, like exercise and nutrition. If you think about it, the turn of random events more or less dictates that you can't rely on it. However, the Living to 100 life expectancy calculator is a good assessment of habits, and maybe you have some debt settlement to do with your health.