6 mega = 24 regular (based on number of sheets in Charmin Regular Roll). Cleans better. So you can use less (vs. USA leading 1-ply bargain brand). 1 mega = 4 regular rolls (based on number of sheets in Charmin Regular Roll). Charmin is safe for your sewer or septic system. FSC: Mix - Paper from responsible sources. www.fsc.org. Rainforest Alliance certified. Learn how Charmin helps to protect, grow and restore trees at charmin.com. Protect + grow + restore. Learn more at charmin.com.