Yep, How Much Toilet Paper is a web-based calculator that lets you guesstimate how much wipeable material you’ll need to survive the pandemic. Simply enter the amount of rolls you’ve stocked and your average number of daily visits to the loo, and the calculator will crunch the numbers.

[Read: Porn sites have turned coronavirus into a viral marketing scheme — and it’s working] Now, there’s a few things you should know. By default, How Much Toilet Paper assumes a 14-day period of quarantine, an average of 5 wipes per visit, 2 sheets per wipe, and 160 sheets per roll. Clearly, all of these depend on your specific situation. Personally, I’m quite liberal when it comes to sheets per wipe, so the default settings will inevitably fail me in the long run. Don’t worry, though: You can head into the Advanced Settings section to adjust these to your habits. Alternatively, you could try Got Paper? which gets more granular about your TP consumption patterns.

And if you want to avoid this hassle altogether, you can always go entirely paperless. We hear it’s the future. For more information about the coronavirus, please visit the following sources:

World Health Organization COVID-19 Q&A European Center for Disease Control and prevention facts on COVID-19 Center for Disease Control COVID-19 facts This coronavirus toilet paper calculator knows if you ll survive quarantine - 48This coronavirus toilet paper calculator knows if you ll survive quarantine - 75