{
    "name": "Conference Venue Capacity Calculator",
    "url": "https://calculators.geekmidst.com/calculators/conference-venue-capacity-calculator",
    "markdown": "https://calculators.geekmidst.com/calculators/conference-venue-capacity-calculator.md",
    "category": "Food & hospitality",
    "description": "Estimate how many people a conference or event room holds from its size, usable floor share and space per person, capped at any posted occupancy limit.",
    "summary": "Capacity is the usable floor area divided by the space each guest needs for your layout, never more than the legal occupancy limit posted for the room.",
    "also_called": [
        "Event space capacity calculator",
        "Room capacity calculator"
    ],
    "applies_to": "Worldwide",
    "last_updated": "2026-10-29",
    "computation": "Results are computed in the visitor’s browser on the HTML page. This API describes the calculator; it does not compute results.",
    "inputs": [
        {
            "name": "unit",
            "label": "Measurements in",
            "type": "segmented",
            "default": "m",
            "options": {
                "m": "Metres",
                "ft": "Feet"
            }
        },
        {
            "name": "length",
            "label": "Room length",
            "type": "number",
            "default": "20"
        },
        {
            "name": "width",
            "label": "Room width",
            "type": "number",
            "default": "15"
        },
        {
            "name": "usable_pct",
            "label": "Usable share of floor",
            "type": "number",
            "default": "85",
            "unit": "%"
        },
        {
            "name": "space_per_person",
            "label": "Space per person",
            "type": "number",
            "default": "1"
        },
        {
            "name": "legal_limit",
            "label": "Posted occupancy limit (optional)",
            "type": "number",
            "default": "",
            "unit": "people",
            "optional": true
        }
    ],
    "outputs": [
        {
            "key": "capacity",
            "label": "Capacity",
            "format": "integer"
        },
        {
            "key": "limited_by",
            "label": "Limited by",
            "format": "text"
        },
        {
            "key": "by_area",
            "label": "Capacity by floor space",
            "format": "integer"
        },
        {
            "key": "gross_area",
            "label": "Floor area (square units)",
            "format": "number"
        },
        {
            "key": "usable_area",
            "label": "Usable area (square units)",
            "format": "number"
        },
        {
            "key": "gross_area_m2",
            "label": "Floor area in square metres",
            "format": "number"
        }
    ],
    "formula": {
        "text": "Area = Length × Width;  Usable = Area × Usable%;  Capacity = min(⌊Usable ÷ Space per person⌋, Posted limit)",
        "variables": {
            "Space per person": "floor area each guest needs in your layout",
            "Posted limit": "maximum occupancy set by the fire or building authority (1 ft² = 0.09290304 m²)"
        }
    },
    "worked_example": {
        "inputs": {
            "unit": "m",
            "length": "20",
            "width": "15",
            "usable_pct": "85",
            "space_per_person": "1",
            "legal_limit": ""
        },
        "steps": [
            "Area = 20 × 15 = 300 m².",
            "Usable = 300 × 85% = 255 m².",
            "Capacity = 255 ÷ 1 m² = 255 people."
        ],
        "result": "A 20 × 15 m room with 85% usable floor holds 255 people at 1 m² each."
    },
    "interpretation": "Treat the result as a planning estimate for the layout you entered. The legal occupancy limit always wins, and accessibility, exits and sight lines can lower the practical number.",
    "assumptions": [
        "The room is a rectangle; enter the equivalent area for other shapes as length × 1."
    ],
    "limitations": [
        "It does not check fire code, exit widths or accessibility; always confirm with the venue."
    ],
    "rules": null,
    "faqs": [
        {
            "question": "Why does layout matter so much?",
            "answer": "Rows of chairs pack people close together; classroom desks and banquet rounds need much more room per guest, so the same room holds far fewer."
        },
        {
            "question": "Where do I find the occupancy limit?",
            "answer": "The venue should know it, and many jurisdictions require it to be posted in the room."
        }
    ],
    "sources": [],
    "related": [
        {
            "name": "Event Break-even Attendance Calculator",
            "url": "https://calculators.geekmidst.com/calculators/event-break-even-attendance-calculator"
        },
        {
            "name": "Event Ticket Revenue Calculator",
            "url": "https://calculators.geekmidst.com/calculators/event-ticket-revenue-calculator"
        },
        {
            "name": "Classroom Capacity Calculator",
            "url": "https://calculators.geekmidst.com/calculators/classroom-capacity-calculator"
        }
    ],
    "disclaimer": null,
    "publisher": "GM¹X CalcVerse"
}