Paper Towel Rolls Per Month Calculator: Rolls, Days per Roll and Yearly Cost

How it works

Rolls per month = sheets per day × 30.42 ÷ sheets per roll · Days per roll = sheets per roll ÷ sheets per day · Rolls per year = sheets per day × 365 ÷ sheets per roll · Price per roll = pack price ÷ rolls in pack · Cost per 100 sheets = price per roll ÷ sheets per roll × 100

Paper towel use comes down to two numbers: how many sheets the household tears off each day and how many sheets are on a roll. Multiply daily sheets by the days in an average month (365 ÷ 12 = 30.42) and divide by the sheets per roll to get rolls per month; a year is 365 days. Roll sizes vary widely between brands and pack labels. A “double” or “mega” roll is a multiple of that brand’s own regular roll, and some brands use half-size sheets, so the price per roll tells you little. Cost per 100 sheets is the fair comparison (price per roll ÷ sheets per roll × 100); if sheet sizes differ a lot, compare price per square foot printed on the pack instead. Enter a pack price and the number of rolls to work out the price per roll. The result assumes a steady daily use. Track your real use for a week (count the rolls you finish) for a better daily figure.

Worked example

Using 12 sheets a day from a 110-sheet roll, one roll lasts 110 ÷ 12 = 9.2 days. Over an average month that is 12 × 30.42 ÷ 110 = 3.3 rolls (buy 4), and over a year 12 × 365 ÷ 110 = 39.8, or about 40 rolls. At $1.50 a roll that costs $1.36 per 100 sheets, about $4.98 a month and $59.73 a year.

Sources: Omni Calculator: Unit price calculator (unit price = total price ÷ number of units)

Frequently asked questions