We use an article that discusses how long $1.000.000 will last you in various states in the USA. if you really run the number like Graham (former financial advisor) it will scare you how much money you need to safe to retire the way you want.

source article:
https://www.marketwatch.com/story/heres-where-city-slickers-can-squeeze-the-most-out-of-1-million-in-retirement-2020-03-04

Retirement calculator
https://retirementplans.vanguard.com/VGApp/pe/pubeducation/calculators/RetirementIncomeCalc.jsf