As others have said, you need to get a good handle on all your numbers - SS, expenses, medical costs, etc. and run them through RIP and other calculators.
Most people here are saving for retirement. We realized a few years ago we had a decent income to retire on already if we could just cut our expenses, so we've been focusing on that more. Our energy bills this month a few years ago used to be $300+ and our last bill was under $70. We've been doing the same with cable, the land line phone, insurance, taxes - everything really, and it adds up to needing less than half as much overall as we thought we'd need to retire. Most of the cuts are things we don't miss - like extra cable channels no one watched, bank fees, energy hog light bulbs and appliances, the land line phone, cell phone contracts, higher income taxes, cars with poor MPG and repair records, etc. If you have always optimized your expenses you may not have a lot to cut, but in hindsight we sure weren't on top of our expenses enough.
Plus we still work part-time from home, so that helps. But we cut our expenses enough to be FI without the extra income. What we initially thought were small pensions actually cover a decent part of our retirement expenses these days, now that our expenses are lower.
