If you’re running low on toilet paper, there's an online tool that will help you calculate how much longer your supply will last.
Simply click on the website and enter how many rolls of toilet paper you have along with how many times you visit the bathroom on an average day. You can get even more detailed by customizing the number of wipes per trip to the toilet, the average number of sheets used and account for how many people are in the home.
Also, if you’re still having trouble finding toilet paper, a Costco blog has created a toilet paper tracker that allows you to check the stock of your local Costco before leaving your home. It also tracks the availability of paper towels, disinfecting wipes, water, rice, and Lysol.