SINGAPORE - FEBRUARY 9: A woman takes a packet of toilet paper off a half-empty shelf at a supermarket after news of the raised outbreak of coronavirus became public people have been panicked to stock up on necessities as on February 9, 2020 in Singapore. The total number of people infected in Singapore has grown to 40. (Photo by Ore Huiying/Getty Images)
Calculate it with the How Much Toilet Paper website. You put in the number of rolls you have and the number of toilet visits you estimate you take per day, and it spits out a number.