Living Longer Is a Blessing — But Your Retirement Fund Needs to Stretch Further
Medical advances keep pushing life expectancy higher, which is great news, but it also means your retirement savings need to cover more years than you may have planned for. If you budgeted for retirement through age 85 but end up living to 90, you need to fund those extra 5 years from somewhere. This calculator takes your monthly expenses and extra expected years and tells you how much additional retirement fund you need. If your retirement assets earn a real return above inflation, the future cost can be discounted to present value, so the actual amount needed is a bit less than the simple total.
Real return rate is your expected investment return minus inflation. A 4% return with 2.5% inflation works out to roughly 1.5% real return. If you're not sure what to use, enter 0% for a conservative estimate — at 0%, the extra amount needed is simply monthly expenses × 12 × extra years. Even a few years of unexpected longevity can add tens of thousands of dollars to what you need, so it pays to build in a margin when planning your retirement.
Frequently Asked Questions
Total annual expenses for the extra years, discounted to present value if you have a real return rate. Without a return rate, it's simply expenses × 12 × years.
Expected return minus inflation. A 4% return with 2.5% inflation is about 1.5% real. Enter 0% if you're unsure, for a conservative estimate.
It has generally trended upward and now sits in the high-70s. A few extra years of expenses can add tens of thousands of dollars to your needs.
※ Your actual needs vary with inflation, returns, and spending. This is a reference estimate only.