How much eos does it costs to create a new account?


It costs RAM to create a new account on eos, so this question depends on how much RAM you want to buy for this new account. Besides you have to have to unstake your eos and delegate a least 1 eos to create the new account (that is the minimum we deem safe). You can remove what you delegated later.
SimplEOS shows you how much these resources will cost: