There’s a Toilet Paper Calculator That Cuts Through ‘Mega’ and ‘Jumbo’ Marketing Claims (2024)

Even Kevin Purdy, who spent hours researching and writing Wirecutter’s first iteration of our guide to toilet paper, can’t make sense of the way toilet paper is marketed. “I generally don’t trust ‘mega ultra super’ rolls,” Kevin says. “It seems like we’re being charged more for the same products.”

We reached out to three of the largest toilet paper manufacturers for more insight on their toilet paper strategy and marketing language; Kimberly-Clark declined to comment, and Procter & Gamble hasn’t responded to our emails at this writing. Georgia-Pacific vice president of consumer knowledge and analytics Rafael Garcia told us that “roll size descriptor factors like Double, Triple, [and] Mega are based on the number of sheets,” so ply and absorbency aren’t a factor, while descriptors like “ultra” can sometimes point to “a higher level of performance” but other times refer to softness, strength, or absorbency.

Unfortunately, the only way to make any sense of it all is to do the math—to multiply the number of rolls in the package by the sheets per roll to get the total number of sheets, and then divide the price by that number before multiplying by 100 to get a per-sheet result in fractions of a cent. (You can usually find the number of sheets per roll on the lower-left or lower-right corner of a toilet paper package, usually in a sterile, all-caps typeface.)

Ly has been keeping tabs on the prices of household products for the better part of a decade to make quick comparisons. He shared his findings with other deal hunters on Slickdeals but soon realized that even folks in the online deals communities had a hard time determining value for price when it came to many everyday consumables—especially those with marketing-driven size claims. His spreadsheet put all of that info into one easy-to-digest place.

Albert Wiersch, a Slickdeals member and Denton, Texas–based software developer who goes by TidalWaveOne, reached out to Ly, asking to use his spreadsheet for the basis of a toilet paper calculator. Ly agreed, and Wiersch used Ly’s research to create the Toilet Paper Value Calculator.

“The idea of the calculator made a lot of sense given that calculating cost per sheet was a relatively simple calculation to make,” says Wiersch. And relying on Ly’s data was a no-brainer: “TofuVic is the respected toilet paper expert on Slickdeals, so I used his calculated price as a comparison point.”

This online tabulator uses the number of rolls and the sheets per roll to tell you exactly how good (or awful) a discount is, taking the guesswork out of scoring maximum savings. It doesn’t, however, take into consideration sheet size. Because there is no industry standard, sheet sizes vary from brand to brand. Some brands, such as Quilted Northern, make square 4-by-4-inch sheets, while others, like Kirkland Signature, go with 4½ by 4 inches. Neither Ly nor Wiersch considers the width of sheets to be a significant factor, given how similar in size they are, though Ly says that if brands begin making narrower toilet paper, he’ll revisit his calculations.

Likewise, Ly’s research doesn’t account for the difference between two-ply and three-ply toilet paper—he considers the two to be fairly interchangeable—but he does exclude one-ply toilet papers from his data set since most people don’t enjoy using it regardless of its price. According to Garcia of Georgia-Pacific, ply also doesn’t factor into the company’s marketing language; what’s really reflected is the number of sheets on the roll.

The calculator Wiersch created is a user-friendly, straightforward way to determine the real value of any given toilet paper deal. Simply enter the number of rolls in the pack, the sheets-per-roll count, and the price. If you’d like, you can also input any coupons or rebates, but that info isn’t required for you to get a result.

After you submit your entry, the calculator spits out a deal grade, which offers a quick visual of how the price stacks up, as well as a detailed breakdown of the calculation. The grades range from A to F, with A being a standout deal and an F, predictably, being the worst you can do.

“After looking at hundreds of data points, I came to the conclusion that the deal price for quality toilet paper is 0.253¢ per sheet,” Ly says. He adds that, with price fluctuations and inflation, this inflection point may vary, but he has seen it hold steady for the past few years.

To receive a passing grade, the toilet paper in question has to cost less than 0.253¢ per sheet. To get an A, it must beat Costco’s Kirkland Signature toilet paper, which Ly has deduced to be the king of bath tissue deals. Kirkland Signature’s in-store pricing is $17 for a 30-roll pack with 425 sheets per roll, which boils down to an unbelievable 0.133¢ per sheet (Costco increases the price to $20 for online purchases).

You might expect someone who has spent as much time as Ly has studying toilet paper prices to prefer the most affordable bath tissue, but he has a confession: “I may be known as the ‘Toilet Paper King’ but I’m actually a traitor to toilet paper,” Ly admits. “I have a luxurious bidet at home, and it is truly a step up from even the highest-quality toilet paper.”

Recently, we tushy-tested 36 varieties of toilet paper over the course of ten months. Of all those rolls, only three truly impressed us. Read more in our guide to the best toilet papers.

This article was edited by Annemarie Conte.