286 2-ply sheets per roll. Total 51.3 sq m (558 sq ft). 9.9 cm x 10.1 cm (3.92 in x 4 in). 18 mega = 72 regular (based on number of sheets in Charmin Regular Roll). Cleans better, use less (vs. leading bargain brand (USA), vs. bird brand 1-ply (Canada)). Clog safe, septic safe. Charmin is safe for your sewer or septic system. Looooong-lasting roll. 1 mega = 4 regular rolls (Based on number of sheets in Charmin Regular Roll). Unscented. www.charmin.com. www.pg.com. how2recycle.info. Facebook. Twitter. Join the conversation with Charmin and don't forget to enjoy the go! Questions? 1-800-777-1410 www.charmin.com. FSC: Mix - Paper from responsible sources. www.fsc.org. Rainforest Alliance Certified. Made in the USA from domestic and imported materials.