{
    "name": "Garment Operator Efficiency Calculator",
    "url": "https://calculators.geekmidst.com/calculators/garment-operator-efficiency-calculator",
    "markdown": "https://calculators.geekmidst.com/calculators/garment-operator-efficiency-calculator.md",
    "category": "Textile & apparel",
    "description": "Calculate a sewing operator’s efficiency from pieces produced, operation SMV and minutes attended, separating off-standard time such as breakdowns.",
    "summary": "Earned minutes = pieces × SMV. Divide by minutes attended for overall efficiency, or by on-standard minutes (attended minus off-standard time) for the operator’s own performance.",
    "also_called": [
        "Sewing operator efficiency calculator",
        "Individual efficiency 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": "pieces",
            "label": "Pieces produced",
            "type": "number",
            "default": "400",
            "unit": "pcs"
        },
        {
            "name": "smv",
            "label": "Operation SMV",
            "type": "number",
            "default": "1.2",
            "unit": "min"
        },
        {
            "name": "attended_min",
            "label": "Minutes attended",
            "type": "number",
            "default": "480",
            "unit": "min"
        },
        {
            "name": "off_standard_min",
            "label": "Off-standard minutes",
            "type": "number",
            "default": "30",
            "unit": "min",
            "optional": true
        }
    ],
    "outputs": [
        {
            "key": "on_standard",
            "label": "On-standard efficiency",
            "format": "percent"
        },
        {
            "key": "overall",
            "label": "Overall efficiency",
            "format": "percent"
        },
        {
            "key": "earned_minutes",
            "label": "Earned minutes",
            "format": "number"
        },
        {
            "key": "target_100",
            "label": "Output at 100% on-standard",
            "format": "integer"
        }
    ],
    "formula": {
        "text": "Earned = Pieces × SMV;  On-standard % = Earned ÷ (Attended − Off-standard) × 100;  Overall % = Earned ÷ Attended × 100",
        "variables": {
            "Attended": "minutes the operator was at work",
            "Off-standard": "minutes lost for reasons the operator does not control"
        }
    },
    "worked_example": {
        "inputs": {
            "pieces": "400",
            "smv": "1.2",
            "attended_min": "480",
            "off_standard_min": "30"
        },
        "steps": [
            "Earned = 400 × 1.2 = 480 minutes.",
            "On-standard = 480 ÷ (480 − 30) = 106.67%.",
            "Overall = 480 ÷ 480 = 100%."
        ],
        "result": "The operator earned 480 minutes: 106.7% on-standard efficiency and 100% overall after 30 minutes of lost time."
    },
    "interpretation": "On-standard efficiency judges the operator; the gap between on-standard and overall shows how much time management and maintenance lost.",
    "assumptions": [
        "The SMV is the agreed standard for this operation."
    ],
    "limitations": [
        "Rework and quality rejects should be excluded from pieces produced, otherwise efficiency is overstated."
    ],
    "rules": null,
    "faqs": [
        {
            "question": "Can efficiency be above 100%?",
            "answer": "Yes. A skilled operator working faster than the standard pace earns more minutes than the time spent."
        },
        {
            "question": "What counts as off-standard time?",
            "answer": "Waiting for work, machine breakdown, power cuts, training and meetings — anything the operator cannot control."
        }
    ],
    "sources": [],
    "related": [
        {
            "name": "Sewing Line Efficiency Calculator",
            "url": "https://calculators.geekmidst.com/calculators/sewing-line-efficiency-calculator"
        },
        {
            "name": "Standard Minute Value (SMV) Calculator",
            "url": "https://calculators.geekmidst.com/calculators/standard-minute-value-calculator"
        },
        {
            "name": "Garment Costing Calculator",
            "url": "https://calculators.geekmidst.com/calculators/garment-costing-calculator"
        }
    ],
    "disclaimer": null,
    "publisher": "GM¹X CalcVerse"
}