Porta Potty Calculator

Get a quick estimate for the number of units your event or job site needs.

Tell Us About Your Event

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1 day 3 days 90 days

Your Estimate

Fill in your event details and click Calculate to see your estimate.

How Many Units Do You Actually Need?

Industry guidelines vary by event type. Here's a quick reference to help you plan.

Construction Sites

OSHA requires 1 unit per 20 workers for a 40-hour week. Add 1 unit for every additional 40 workers per shift.

Outdoor Events

Plan for 1 unit per 50–75 attendees for a 4-hour event. Add 20% capacity if alcohol is served.

Weddings & Parties

For a 4-hour event, 1 unit per 50 guests is a comfortable minimum. Consider a restroom trailer for a premium feel.

ADA Compliance

Most public events are required to have at least 1 ADA-accessible unit. We recommend 1 per every 10 standard units.

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