Restroom Calculator

Restrooms Needed for Events
Under normal conditions most people will use sanitation facilities once every four hours.
Please use this table as a guide.

Determine how many hours the event will last. If it spans multiple days, use the longest day.

Determine how many guests will attend. If there are multiple days, use the number of guests during peak hours/day.

 

# of Employees # of Restrooms Needed Hours Worked per Week
1-10 1 40
11-20 2 40
21-30 3 40
31-40 4 40
Over 40 +1 for each additional 10 employees 40
  Hours
Attendees 1 2 3 4 5 6 7 8 9 10
0 – 50 1 1 1 2 2 2 2 2 2 2
51 – 100 2 2 2 2 3 3 3 3 3 3
101 – 250 3 3 3 3 4 4 4 4 6 6
251 – 500 4 4 4 6 6 6 8 8 8 8
501 – 750 4 4 6 6 6 8 8 8 10 10
751 – 1,000 6 6 6 8 8 8 12 12 12 12
2,000 8 8 8 8 8 12 12 12 12 16
3,000 8 12 15 16 18 18 18 19 20 21
4,000 10 16 18 22 24 25 25 27 27 28
5,000 12 20 24 27 29 31 32 34 35 35
6,000 14 24 28 33 35 37 37 39 40 42
7,000 18 28 34 38 40 42 46 46 48 48
8,000 20 32 38 44 48 50 50 50 52 54
9,000 22 32 42 48 52 54 54 56 58 64
10,000 24 38 48 54 58 62 64 66 68 72