{
  "slug": "pediatric-dose",
  "title": "Weight-Based Dosage Calculator",
  "heading": "Weight-Based Dosage Calculator",
  "category": "fitness-health",
  "url": "https://www.revenuelab.fyi/toolbox/pediatric-dose",
  "summary": "Total dose and volume to draw from a mg/kg order.",
  "description": "Turn a mg-per-kilogram order into a total dose, then into the millilitres to draw given the concentration on the vial — with a daily total across scheduled doses.",
  "formula": "Dose = weight (kg) × mg/kg. Volume = dose ÷ concentration.",
  "dateModified": "2026-09-30",
  "run_url": "https://www.revenuelab.fyi/api/public/calc?tool=pediatric-dose",
  "inputs": [
    {
      "id": "kg",
      "label": "Patient weight",
      "kind": "number",
      "hint": null,
      "default": 18,
      "unit": "kg",
      "min": 0.5,
      "max": null
    },
    {
      "id": "mgkg",
      "label": "Ordered dose",
      "kind": "number",
      "hint": null,
      "default": 15,
      "unit": "mg/kg",
      "min": 0,
      "max": null
    },
    {
      "id": "conc",
      "label": "Concentration",
      "kind": "number",
      "hint": null,
      "default": 32,
      "unit": "mg/mL",
      "min": 0.1,
      "max": null
    },
    {
      "id": "perDay",
      "label": "Doses per day",
      "kind": "number",
      "hint": null,
      "default": 4,
      "unit": null,
      "min": 1,
      "max": null
    },
    {
      "id": "maxDay",
      "label": "Max daily dose",
      "kind": "number",
      "hint": null,
      "default": 2000,
      "unit": "mg",
      "min": 0,
      "max": null
    }
  ],
  "outputs": [
    {
      "id": "dose",
      "label": "Dose per administration (mg)",
      "format": "decimal",
      "hint": null,
      "primary": true
    },
    {
      "id": "volume",
      "label": "Volume to draw (mL)",
      "format": "decimal",
      "hint": null,
      "primary": false
    },
    {
      "id": "daily",
      "label": "Total daily dose (mg)",
      "format": "decimal",
      "hint": null,
      "primary": false
    },
    {
      "id": "headroom",
      "label": "Remaining under daily max (mg)",
      "format": "decimal",
      "hint": null,
      "primary": false
    },
    {
      "id": "pctMax",
      "label": "Percent of daily max",
      "format": "percent",
      "hint": null,
      "primary": false
    }
  ],
  "worked_example": {
    "inputs": [
      "Patient weight: 18 kg",
      "Ordered dose: 15 mg/kg",
      "Concentration: 32 mg/mL",
      "Doses per day: 4",
      "Max daily dose: 2000 mg"
    ],
    "outputs": [
      "Dose per administration (mg): 270",
      "Volume to draw (mL): 8.44",
      "Total daily dose (mg): 1,080",
      "Remaining under daily max (mg): 920",
      "Percent of daily max: 54%"
    ]
  },
  "how_to": {
    "title": "How to use this",
    "steps": [
      "Enter patient weight (kg).",
      "Enter ordered dose (mg/kg).",
      "Enter concentration (mg/mL).",
      "Enter doses per day.",
      "Enter max daily dose (mg).",
      "Read your dose per administration (mg) on the right — it updates as you type.",
      "Hit Share to keep the scenario or send it to someone."
    ]
  },
  "scenarios": [
    {
      "name": "Conservative",
      "description": "Lower-end numbers — what if things land soft?",
      "values": {
        "kg": 10.799999999999999,
        "mgkg": 9,
        "conc": 19.2,
        "perDay": 2,
        "maxDay": 1200
      }
    },
    {
      "name": "Typical",
      "description": "Defaults — the most common real-world setup.",
      "values": {
        "kg": 18,
        "mgkg": 15,
        "conc": 32,
        "perDay": 4,
        "maxDay": 2000
      }
    },
    {
      "name": "Ambitious",
      "description": "Higher-end numbers — what if things really pop?",
      "values": {
        "kg": 28.8,
        "mgkg": 24,
        "conc": 51.2,
        "perDay": 6,
        "maxDay": 3200
      }
    }
  ],
  "limitations": [
    "Population formulas describe averages; individual bodies vary, especially at the extremes of height, age, or muscle mass.",
    "Results do not account for medical conditions, medication, or pregnancy.",
    "Use this as a directional reference, not a diagnosis — talk to a clinician before acting on it."
  ],
  "faq": [
    {
      "q": "Pounds or kilograms?",
      "a": "Kilograms. Divide pounds by 2.205 first — mixing the two is the single most common dosing error."
    },
    {
      "q": "What if the daily total exceeds the max?",
      "a": "Stop and re-check the order. This tool flags it but cannot decide for you."
    }
  ],
  "related": [],
  "license": "CC-BY-4.0",
  "citation": "RevenueLab — Weight-Based Dosage Calculator (https://www.revenuelab.fyi/toolbox/pediatric-dose)"
}