Porta Potty Calculator

How to Use the Porta Potty Calculator

Our porta potty calculator takes the guesswork out of planning. Whether you’re organizing a backyard wedding in Rhode Island or managing a busy construction site, enter a few quick details โ€” your guest count, event duration, and whether alcohol will be served โ€” and get an instant recommendation for how many portable restrooms you need.

For construction sites, switch to the Construction tab and enter your crew size. The calculator uses OSHA guidelines to give you a compliant count. When you’re ready to rent, Cassie’s Cans delivers clean, sanitized units across all of Rhode Island.

Find out how many units you need for your event or job site.

๐Ÿ—๏ธ OSHA Construction Site Requirements Showing both OSHA minimums and Cassie's Cans recommendations. Gender ratio and alcohol options are not applicable for job sites.
11,000+
0% (All Men)100% (All Women)
1 hr24 hrs

Recommended Units
2
Portable Restrooms
Based on your event details, we recommend at least 2 units to keep guests comfortable.
How We Calculated This
Industry chart rangeโ€”
Women's usage factorโ€”
Duration adjustmentโ€”
Alcohol factorโ€”
Total recommendedโ€”

Porta Potty Calculator FAQs

Our calculator is built on industry-standard formulas used by event planners and site managers. It accounts for guest count, event length, alcohol service, and the percentage of women attending โ€” all factors that affect usage rates. It’s a solid planning estimate, not a guarantee.

Yes โ€” alcohol increases usage frequency by roughly 20โ€“40%. The calculator adjusts for this automatically when you toggle “Yes” on the alcohol question.

Absolutely. We serve all 39 Rhode Island cities and towns. Once you have your number, request a free quote, and we’ll confirm availability and pricing.