{
    "name": "Classroom Capacity Calculator",
    "url": "https://calculators.geekmidst.com/calculators/classroom-capacity-calculator",
    "markdown": "https://calculators.geekmidst.com/calculators/classroom-capacity-calculator.md",
    "category": "Education",
    "description": "Find how many students a classroom holds from its size, space reserved for the teacher and furniture, the area allowed per student and any occupancy limit.",
    "summary": "Capacity is the usable floor area divided by the space each student needs, rounded down, and never more than any occupancy limit set for the room.",
    "also_called": [
        "Room capacity calculator",
        "Classroom size 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": "units",
            "label": "Units",
            "type": "segmented",
            "default": "metric",
            "options": {
                "metric": "Metres",
                "imperial": "Feet"
            }
        },
        {
            "name": "length",
            "label": "Room length",
            "type": "number",
            "default": "9"
        },
        {
            "name": "width",
            "label": "Room width",
            "type": "number",
            "default": "7"
        },
        {
            "name": "reserved_area",
            "label": "Area reserved (teacher zone, storage, aisles)",
            "type": "number",
            "default": "8",
            "optional": true
        },
        {
            "name": "area_per_student",
            "label": "Area per student",
            "type": "number",
            "default": "2"
        },
        {
            "name": "max_occupancy",
            "label": "Occupancy limit for the room",
            "type": "number",
            "default": "",
            "optional": true
        }
    ],
    "outputs": [
        {
            "key": "capacity",
            "label": "Students the room holds",
            "format": "integer"
        },
        {
            "key": "by_space",
            "label": "Capacity by floor space alone",
            "format": "integer"
        },
        {
            "key": "gross_area",
            "label": "Floor area",
            "format": "number"
        },
        {
            "key": "usable_area",
            "label": "Usable area",
            "format": "number"
        },
        {
            "key": "area_each_at_capacity",
            "label": "Usable area per student at capacity",
            "format": "number"
        }
    ],
    "formula": {
        "text": "Usable area = Length × Width − Reserved;  Capacity = min(⌊Usable ÷ Area per student⌋, Occupancy limit)",
        "variables": {
            "Reserved": "area that students cannot use",
            "Area per student": "the space allowance you must meet"
        }
    },
    "worked_example": {
        "inputs": {
            "units": "metric",
            "length": "9",
            "width": "7",
            "reserved_area": "8",
            "area_per_student": "2",
            "max_occupancy": ""
        },
        "steps": [
            "Floor area = 9 × 7 = 63 m².",
            "Usable = 63 − 8 = 55 m².",
            "55 ÷ 2 = 27.5, rounded down to 27 students."
        ],
        "result": "A 9 × 7 m room with 8 m² reserved holds 27 students at 2 m² each."
    },
    "interpretation": "Round down, never up: a fractional student means the last one would not get the full allowance. Lab, art and early-years rooms usually need far more space per child than lecture-style rooms.",
    "assumptions": [
        "The room is a rectangle; for L-shaped rooms add the areas yourself and enter them as length × 1."
    ],
    "limitations": [
        "Space allowances, exits and fire limits are set locally; this tool does not check them."
    ],
    "rules": null,
    "faqs": [
        {
            "question": "How much space does each student need?",
            "answer": "It depends on age, activity and local rules. Enter the figure from your education authority or building code."
        },
        {
            "question": "Should I reserve area for the teacher?",
            "answer": "Yes. Teacher desk, board access, storage and walkways are not usable seating space."
        }
    ],
    "sources": [],
    "related": [
        {
            "name": "Teacher Student Ratio Calculator",
            "url": "https://calculators.geekmidst.com/calculators/teacher-student-ratio-calculator"
        },
        {
            "name": "University Seat Allocation Calculator",
            "url": "https://calculators.geekmidst.com/calculators/university-seat-allocation-calculator"
        },
        {
            "name": "Academic Year Working Days Calculator",
            "url": "https://calculators.geekmidst.com/calculators/academic-year-working-days-calculator"
        }
    ],
    "disclaimer": null,
    "publisher": "GM¹X CalcVerse"
}