how much does world of warcraft cost monthly?

Answer 1

Online Subscriptions (Credit/Debit Card):

$14.99/Month
$13.99/Month (prepaid 3 months)
$12.99/Month (prepaid 6 months)
*NOTE: If you purchase prepaid time and quit the game, you will NOT be refunded. You will, however, be able to play the game until your time expires.

OR

$29.99 60-day Timecard from your local retailer (Target, Walmart, Kmart, Circuit City, Best Buy, Etc.)

Answer 2

13-15 dollars a month depending on your payment method.