Calculate Yourself

• 1). Multiply the width times the length of the room or space for the event. This will give you the room's square footage.
  
  
• 2). Note the space needed for each person. At events where people will stand, each person needs 5 to 6 square feet of space. If the event requires seating for everyone, such as a class or theater setting, figure 6 to 8 square feet per person. And if the event includes dining, count on 8 to 12 square feet.
  
  
• 3). Divide the square footage by the space needed for each person to calculate how many people can attend the event. For example, if you have 500 square feet and each person will need 5 square feet, then you can fit 100 people.
  
  

Use an Event Calculator

• 1). Multiply the width times the length of the room or area for the event. This will give you the room's square footage.
  
  
• 2). Open a space calculator for banquet and meeting rooms online.
  
  
• 3). Type the number of people attending your event or the square footage of your venue in the input field.
  
  
• 4). Choose the "Calculate" button. The fields will populate and indicate the space required or the capacity for a myriad of event options, from conferences to trade show booths.