Mr. Money Mustache helped popularize “The Shockingly Simple Math Behind Early Retirement”.

Essentially, the time it takes to reach retirement is directly related to one’s savings rate. If you live on 100% of your income, you’ll never retire. If you live on none of it, you can retire today. The line isn’t linear between the two, however:

The fantastic NetWorthify calculator takes exactly eight seconds to fill out. So click the above graph and see where you are on the retirement timeline. It can be a bit depressing if you are only saving 5% toward retirement (hint: you’ll work 66 years before you can retire). Let that be a motivator to re-read this investing series and see where you can increase your savings rate. A goal to Live On Half is always a good one to have.