Take Home Calculator is saying $3370.83 a month with the assumption that OP will get 40 hours every single week (so a full-time job). If OP wants to live alone the hardest part might not be paying rent but qualifying for a rent to begin with. Most places in the Seattle area ask for 2.5 times the rent so that gives a budget of about ~$1400 to qualify. OP, listen to whoever said you need roommates!