{
    "name": "Lime Application Calculator",
    "url": "https://calculators.geekmidst.com/calculators/soil-lime-requirement-calculator",
    "markdown": "https://calculators.geekmidst.com/calculators/soil-lime-requirement-calculator.md",
    "category": "Agriculture",
    "description": "Convert a soil-test lime requirement into the amount of your liming product, adjusting for its neutralising value (ECCE/CCE) and your tillage depth.",
    "summary": "Soil labs give the lime needed as pure calcium carbonate for a set depth. Scale it by your product’s neutralising value and the depth you will mix it into.",
    "also_called": [
        "Agricultural lime calculator",
        "Liming rate 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": "requirement",
            "label": "Lime requirement from soil test",
            "type": "number",
            "default": "2.5"
        },
        {
            "name": "req_basis",
            "label": "Requirement unit",
            "type": "select",
            "default": "t_ha",
            "options": {
                "t_ha": "tonnes per hectare",
                "ton_acre": "US tons per acre",
                "lb_acre": "lb per acre"
            }
        },
        {
            "name": "ecce",
            "label": "Product neutralising value (ECCE or CCE)",
            "type": "number",
            "default": "80",
            "unit": "%"
        },
        {
            "name": "rec_depth",
            "label": "Depth the requirement is for",
            "type": "number",
            "default": "15"
        },
        {
            "name": "depth",
            "label": "Depth you will incorporate to",
            "type": "number",
            "default": "20"
        },
        {
            "name": "area",
            "label": "Field area",
            "type": "number",
            "default": "3"
        },
        {
            "name": "area_unit",
            "label": "Area in",
            "type": "segmented",
            "default": "ha",
            "options": {
                "acre": "Acres",
                "ha": "Hectares"
            }
        }
    ],
    "outputs": [
        {
            "key": "total_t",
            "label": "Product for the field",
            "format": "number"
        },
        {
            "key": "product_t_ha",
            "label": "Product per hectare",
            "format": "number"
        },
        {
            "key": "product_ton_acre",
            "label": "Product per acre",
            "format": "number"
        },
        {
            "key": "product_lb_acre",
            "label": "Product per acre",
            "format": "integer"
        },
        {
            "key": "total_us_tons",
            "label": "Product for the field",
            "format": "number"
        }
    ],
    "formula": {
        "text": "Product rate = Requirement × (100 ÷ ECCE) × (Your depth ÷ Recommendation depth);  Total = Rate × Area",
        "variables": {
            "Requirement": "lime needed as 100% CaCO₃",
            "ECCE": "effective calcium carbonate equivalent of your product, %"
        }
    },
    "worked_example": {
        "inputs": {
            "requirement": "2.5",
            "req_basis": "t_ha",
            "ecce": "80",
            "rec_depth": "15",
            "depth": "20",
            "area": "3",
            "area_unit": "ha"
        },
        "steps": [
            "ECCE adjustment: 2.5 × 100 ÷ 80 = 3.125 t/ha.",
            "Depth adjustment: 3.125 × 20 ÷ 15 = 4.17 t/ha.",
            "For 3 ha: 4.1667 × 3 = 12.5 t."
        ],
        "result": "A 2.5 t/ha requirement for 15 cm becomes 4.17 t/ha of an 80% ECCE product mixed to 20 cm, or 12.5 t for 3 ha."
    },
    "interpretation": "Large rates are often split over two or more years; your adviser or lab may set a maximum single application.",
    "assumptions": [
        "The requirement is expressed as 100% calcium carbonate equivalent.",
        "Lime need scales in proportion to the depth of soil treated."
    ],
    "limitations": [
        "The calculator does not derive a lime requirement from soil pH; that needs a lab buffer test and regional tables."
    ],
    "rules": null,
    "faqs": [
        {
            "question": "What is ECCE?",
            "answer": "Effective calcium carbonate equivalent: the product’s neutralising value relative to pure CaCO₃, adjusted for how fine it is ground. Coarser lime has a lower ECCE."
        },
        {
            "question": "Why does depth matter?",
            "answer": "Lime only neutralises the soil it is mixed into. Treating a deeper layer means more soil, so more lime."
        }
    ],
    "sources": [],
    "related": [
        {
            "name": "Fertiliser NPK Calculator",
            "url": "https://calculators.geekmidst.com/calculators/fertilizer-npk-blend-calculator"
        },
        {
            "name": "Fertiliser Application Rate Calculator",
            "url": "https://calculators.geekmidst.com/calculators/fertilizer-application-rate-calculator"
        },
        {
            "name": "Soil Carbon Stock Calculator",
            "url": "https://calculators.geekmidst.com/calculators/soil-carbon-stock-estimate-calculator"
        }
    ],
    "disclaimer": null,
    "publisher": "GM¹X CalcVerse"
}