12 mega = 48 regular (based on number of sheets in Charmin Regular Roll). Cleans better (vs. leading bargain brand). Total 31.6 square meters (344 square feet). 9.9 centimeters by 10.1 centimeters (3.92 inches by 4 inches). 1 mega = 4 regular rolls (based on number of sheets in Charmin Regular Roll). Charmin is safe for your sewer or septic system. www.charmin.com. www.pg.com. www.fsc.org. how2recycle.info. Join the conversation with Charmin and don't forget to enjoy the go! Facebook. Twitter. Questions? 1-800-777-1410. www.charmin.com. Try our roll extender. Call 1-800-777-1410 or visit charmin.com for your free roll extender. Roll fit guarantee: If not satisfied with your Charmin roll fit, send original receipt, UPC and completed online form within 60 days of purchase for a refund via prepaid card. Limited to one redemption per household or name; no organizations. Refund is only for the cost of one pack of Charmin toilet tissue. Allow 6-8 weeks for refund. Visit www.charmin.com/guarantee for details. Recycle if clean & dry. how2recycle.info. Made in the USA from domestic and imported materials.