12 mega = 48 regular (based on number of sheets in Charmin Regular Roll). Dermatologist tested. Gently cleans even irritated skin. Try our roll extender. 1 mega = 4 regular rolls (based on number of sheets in Charmin Regular Roll). 12 mega rolls. Unscented. Charmin is safe for your sewer or septic system. FSC. Rainforest Alliance certified.