Keep garden sites stocked for workers and visitors. Choose roll types and set usage assumptions. Get clear totals, then download CSV or PDF instantly.
| Scenario | People | Days | Uses/day | Sheets/use | Roll type | Waste% | Buffer% | Estimated rolls |
|---|---|---|---|---|---|---|---|---|
| Weekend volunteer cleanup | 18 | 2 | 4 | 8 | Standard (250) | 10 | 15 | 6 |
| Farmers market day | 60 | 1 | 3.5 | 7 | Mega (500) | 12 | 20 | 4 |
| Field station week | 12 | 7 | 5 | 9 | Jumbo (1000) | 8 | 15 | 5 |
BaseSheets = People × Days × UsesPerPersonPerDay × SheetsPerUse
TotalSheets = BaseSheets × (1 + Waste%/100) × (1 + Buffer%/100)
RollsNeeded = CEILING(TotalSheets ÷ SheetsPerRoll)
Waste covers loss during outdoor use. Buffer covers delays and surprises.
Outdoor gardens often run temporary restrooms for staff, volunteers, and visitors. This calculator converts expected attendance into roll counts using people, days, daily uses, and sheets per use. Typical planning ranges are 3–6 uses per person per day and 6–10 sheets per use, depending on tissue thickness and dispenser control. For guided tours, usage is usually lower.
Roll size drives the final quantity. Standard rolls are commonly modeled at 250 sheets, mega at 500 sheets, and jumbo at 1,000 sheets. If your supplier lists a different sheet count, choose Custom and enter the exact value to match procurement specifications and reduce overbuying. Where theft or misuse is a concern, smaller rolls can reduce loss but increase restock labor.
Garden environments increase waste due to humidity, wind, and hurried use during events. A waste factor of 8–15% is a practical starting point for open-air storage or high turnover. The safety buffer adds contingency for delivery delays, weather extensions, or unexpectedly high attendance; 10–25% is often used for public days. If rolls are stored in sealed bins and refilled daily, waste can be set closer to 5%.
Operations teams usually buy by pack, not by roll. Enter pack size to convert rolls-to-buy into packs-to-buy using ceiling rounding, so you always purchase enough. If cost per roll is provided, the calculator multiplies rolls-to-buy by unit cost for an estimate that can be shared with supervisors. Use the estimate to compare vendors by true cost per sheet, not just pack price.
The daily sheets figure helps set restock cadence. Combine current rolls with daily rolls consumed to estimate days of supply, then schedule checks before stock drops below two days. For festivals, export CSV for handoffs and download PDF for supply boards. When changing roll types, rerun the calculation to keep the same service level with fewer emergency trips.
Start with 8 sheets for average use. Increase for single-ply or high-dust days. Decrease if dispensers limit pull length. Validate by checking one busy shift.
Use 8–15% for humid storage, windy sites, or public events. If rolls are sealed and issued daily, 5–8% is often sufficient.
If visitors stay briefly, lower uses per day may fit. For markets or tours with long dwell time, visitor usage can match staff patterns.
Supplies must cover full demand. Ceiling rounding prevents shortages when the calculation lands between rolls or between purchasable pack sizes.
No. Buffer adds contingency stock to the total requirement. Daily sheets and daily rolls reflect expected usage plus waste, not the extra safety reserve.
Compare cost per sheet: cost per roll divided by sheets per roll. Then rerun the calculator to see how roll count, packs, and restock frequency change.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.