Fidelity Retirement Planner
I retired in March 2018. I used the Fidelity tool, the tool in Quicken and Firecalc. I also would find users on this site and Bogleheads that had a history of retirement planning. I would read through their historical posts and compare their plans and retirement success with my plans. I was just under 60 when I retired with no debt, a company pension with a monthly payout similar to my expected social security, and retiree medical that cost about 300/month for a high deductible plan. Also had all my kids through college, no mortgage or car payments, and my wife still works mainly for medical. For me all the retirement tools lined up. I have been doing good in retirement. Like everything the result is only as good as the input on expenses and return. Though you selected significantly below market in the Fidelity tool, I would still compare with other tools. I ended up moving my pre-tax 401k to a Fidelity IRA, post tax 401k contributions to a Fidelity Roth IRA, HSA to Fidelity, and obtained the Fidelity credit card. Good luck.