curl --request POST \
  --url https://api.iotools.cloud/v1/tool/floor-tile-area-calculator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "unitSystem": "metric",
  "roomShape": "rectangle",
  "roomLength": "5",
  "roomWidth": "4",
  "tileLength": "600",
  "tileWidth": "600",
  "groutGap": "3",
  "wastagePct": "10",
  "tilesPerBox": "6"
}
'

{
  "tool": "floor-tile-area-calculator",
  "tool_version": "1.0.1",
  "outputs": {
    "results": [
      {
        "metric": "Total floor area",
        "value": "20.00 m²"
      },
      {
        "metric": "Effective tile area (with grout)",
        "value": "0.36 m²"
      },
      {
        "metric": "Tiles needed (no wastage)",
        "value": "56 tiles"
      },
      {
        "metric": "Tiles needed (with wastage)",
        "value": "61 tiles (+10%)"
      },
      {
        "metric": "Cut / waste tiles",
        "value": "~6 tiles"
      },
      {
        "metric": "Coverage from purchase",
        "value": "24.00 m² (66 tiles)"
      },
      {
        "metric": "Boxes to buy",
        "value": "11 boxes"
      }
    ],
    "summary": "20.00 m² floor · 61 tiles +10% · 11 boxes of 6"
  },
  "credits_used": 3,
  "credits_remaining": null
}