Everyday life

Toilet Paper Calculator

Estimate how long your toilet paper will last.

Rolls on hand

Sheets per roll

People

Sheets per use

Uses per person/day

Calculated Output

Days it lasts (days) 24

Weeks (weeks) 3.429

Formula: days = total sheets ÷ daily use

Step-by-Step Breakdown

1. Values used:

2. Rolls on hand = 12

3. Sheets per roll = 160

4. People = 2

5. Sheets per use = 8

6. Uses per person/day = 5

8. Days it lasts = 24days

9. Weeks = 3.429weeks

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The math behind it

days = (rolls × sheets per roll) ÷ (people × uses per day × sheets per use).

12 rolls × 160 sheets, 2 people → ~24 days.

Sheets per use?

Estimates vary widely; ~8 is a common assumption.