curl --request POST \
  --url https://api.iotools.cloud/v1/tool/baking-pan-size-converter \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "originalPreset": "round9",
  "targetPreset": "rect9x13",
  "ingredients": "",
  "roundingMode": "fractions"
}
'

{
  "tool": "baking-pan-size-converter",
  "tool_version": "1.0.2",
  "outputs": {
    "summary": "Scale by ×1.84 when moving from the original pan to the target pan.",
    "result": [
      {
        "metric": "Scale factor",
        "value": "× 1.84"
      },
      {
        "metric": "Original pan volume",
        "value": "127 in³ (≈9 cups)"
      },
      {
        "metric": "Target pan volume",
        "value": "234 in³ (≈16 cups)"
      },
      {
        "metric": "Fill & bake note",
        "value": "Similar depth to the original pan, so the original oven temperature should still work — start checking for doneness at the original bake time and adjust from there."
      }
    ],
    "scaledIngredients": ""
  },
  "credits_used": 5,
  "credits_remaining": null
}