Student software developers Ben Sassoon and artist Sam Harris came up with a website that will calculate how long your toilet paper supply will last.

Howmuchtoiletpaper.com lets you enter how many rolls of toilet paper you have and how many times you visit the bathroom.

If you scroll to the “Advanced Options” section, you can really get detailed, customizing the average number of wipes per trip, the number of sheets per wipe, sheets on the roll, and people in the house.

More than 2 million people have used the tool, the website says, and the average user has a whopping 500% more toilet paper than they need for quarantine.

As households continue to stock up on toilet paper — emptying shelves across the country — a new website is attempting to answer the question: How much TP do we really need https://t.co/1FMoRI6pxg

— CNN (@CNN) March 21, 2020