How to figure out event capacity

Written by jennifer hearing
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How to figure out event capacity
Crowded house? (aetb/iStock/Getty Images)

Planning an event requires both creativity and realism. Events and parties need excellent entertainment but also careful attention to aspects such as cost and logistics. One of the most important practical decisions regards how many people can fit in a venue comfortably. You can calculate the capacity yourself or use an online calculator to help you in your quest to organise the perfect event.



  1. 1

    Multiply the width of the event space by its length. This will give you the room's area in square metres.

  2. 2

    Note the space needed for each person. At events where people will stand, each person needs about 0.5 square metres (five to six square feet) of space. If the event requires seating for everyone, such as a class or theatre setting, allow 0.55 to 0.75 square metres (six to eight square feet) per person. If the event includes dining, allow 0.75 to 1.1 square metres (eight to 12 square feet.)

  3. 3

    Divide the area of the room by the space needed for each person to calculate how many people can attend the event. For example, if you have 45 square metres (500 square feet) and each person will need 0.45 square metres (five feet,) then you can fit 100 people.

    Use an event calculator

  1. 1

    Find the area of the event space, as shown above.

  2. 2

    Open a space calculator for banquet and meeting rooms online.

  3. 3

    Type the number of people attending your event, or the area of your venue, in the input field.

  4. 4

    Click the "Calculate" button. The fields will populate and indicate the space required or the capacity for a variety of event options, from conferences to trade show booths.

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