{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://askcalculators.com/calculator/calorie-needs-calculator/schema.json",
  "title": "Calorie Needs Calculator inputs",
  "description": "Estimate daily maintenance calories and apply an optional daily adjustment.",
  "type": "object",
  "properties": {
    "sex": {
      "title": "Equation sex constant",
      "type": "string",
      "default": "female",
      "enum": [
        "female",
        "male"
      ],
      "x-optionLabels": {
        "female": "Female constant",
        "male": "Male constant"
      }
    },
    "age": {
      "title": "Age",
      "type": "number",
      "default": 35,
      "minimum": 18,
      "maximum": 120,
      "x-step": 1,
      "multipleOf": 1
    },
    "weightKg": {
      "title": "Weight",
      "type": "number",
      "default": 70,
      "minimum": 1,
      "maximum": 500,
      "x-step": 0.1,
      "x-suffix": " kg"
    },
    "heightCm": {
      "title": "Height",
      "type": "number",
      "default": 170,
      "minimum": 50,
      "maximum": 300,
      "x-step": 0.1,
      "x-suffix": " cm"
    },
    "activityFactor": {
      "title": "Activity factor",
      "type": "number",
      "default": 1.375,
      "enum": [
        1.2,
        1.375,
        1.55,
        1.725,
        1.9
      ],
      "x-optionLabels": {
        "1.2": "Sedentary — 1.2",
        "1.375": "Light activity — 1.375",
        "1.55": "Moderate activity — 1.55",
        "1.725": "Very active — 1.725",
        "1.9": "Extra active — 1.9"
      }
    },
    "dailyAdjustment": {
      "title": "Daily calorie adjustment",
      "type": "number",
      "description": "Optional; negative or positive",
      "default": 0,
      "minimum": -2000,
      "maximum": 2000,
      "x-step": 50,
      "multipleOf": 50,
      "x-suffix": " kcal"
    }
  },
  "required": [
    "sex",
    "age",
    "weightKg",
    "heightCm",
    "activityFactor"
  ],
  "additionalProperties": false,
  "x-askcalculators": {
    "version": "1.0.0",
    "calculatorUrl": "https://askcalculators.com/calculator/calorie-needs-calculator/",
    "queryExample": "https://askcalculators.com/calculator/calorie-needs-calculator/?sex=female&age=35&weightKg=70&heightCm=170&activityFactor=1.375&dailyAdjustment=0",
    "migrationStatus": "new",
    "reviewStatus": "pending",
    "pageStatus": "live",
    "workStatus": "pending",
    "formula": {
      "expression": "Maintenance calories = Mifflin–St Jeor BMR × activity factor"
    },
    "quality": {
      "availability": "live",
      "technicalReviewRecord": "/reviews/calorie-needs-calculator.json",
      "qualifiedReview": "pending",
      "qualifiedReviewer": null,
      "qualifiedReviewDate": null,
      "formulaVersion": "1.0.0",
      "referenceCoverage": "references-listed",
      "releaseTestScope": "Catalog and regression checks are not a professional formula audit; consult release evidence.",
      "historicalMetadataDate": "2026-08-18",
      "historicalMetadataNotice": "The imported date is not evidence of a completed human review."
    },
    "outputs": {
      "maintenanceCalories": {
        "title": "Estimated maintenance",
        "type": "number",
        "x-format": "integer",
        "x-suffix": " kcal/day",
        "x-primary": true
      },
      "targetCalories": {
        "title": "Adjusted daily target",
        "type": "number",
        "x-format": "integer",
        "x-suffix": " kcal/day"
      },
      "bmr": {
        "title": "Estimated BMR",
        "type": "number",
        "x-format": "integer",
        "x-suffix": " kcal/day"
      },
      "weeklyEnergyDifference": {
        "title": "Weekly energy adjustment",
        "type": "number",
        "x-format": "integer",
        "x-suffix": " kcal/week"
      }
    }
  }
}