How much do I need in a 401k to get $2 000 a month?

Excuse me, I'm trying to plan for my retirement and I was wondering, how much would I need to have saved in my 401k account in order to receive $2,000 a month as a withdrawal? I understand that there are several factors that can affect this, such as the investment returns and the length of time that I have until retirement, but I'm just looking for a rough estimate to help me set a goal. Can you provide any guidance on this? Thank you for your time.