I don't follow those retirement calculators which do not work for me. Here is my methodology. Let me know what you think.
I take my current spending for everything not paid through payroll deduction. I have tracked this for years and have an average monthly spending amount. I assume this will be what I will need in retirement. I will not have commuting and other work related expenses but I will pay more for medical premiums for Parts B, D or whatever alphabet soup Medicare has at that time. So I call it a wash.
Since I am a risk averse person and do not invest in the stock market I assume a zero rate of return on my retirement savings. You could say I should have a negative rate of return to allow for inflation but I figure Social Security COLAs will take care of that.
I then look at my Social Security projected benefits. Good news - I will not have to work forever. I can retire at 70 based strictly on the SS benefit without a penny in the bank.
Then I take my benefit amount at other ages like 62 or 67 and subtract it from my average monthly spending to come up with my monthly shortfall. I multiply this by 12 then by the number of years from that age to 90 to come up with the amount I would need to retire at that age. I figure if I am still alive at 90 I will be so frail or so out of it that I will be in a facility and if I'm impoverished Medicaid can pick up the slack, so I don't worry about anything beyond 90.
According to these calculations based on what I have saved now I can retire at 67.
The online calculators are often put out by investment companies that tell you that you need a million or more dollars and that you must invest aggressively in what they are selling. That is not me.