Looks about right.
Its a good starting point but the best way to find your BMR is on your own. Start with around 3500 for a week. If you start to gain weight, decrease by 100 each week until you reach a point where you no longer gain weight (maintanance). Drop 200-300 from there and you're set. Of course this takes a long time but going by 10x bodyweight or whatever will never be accurate because everyone is different (fast/slow metabolism). Anyways I'm telling you stuff that you already know right?