ECEF to lat/lon/height API

Converts Earth-Centered Earth-Fixed (ECEF) Cartesian X/Y/Z meters back to geodetic latitude, longitude and ellipsoidal height on WGS-84 using Bowring's closed-form method. Answers 'What lat/lon does this ECEF coordinate map to?', 'How do I invert 3D Cartesian back to GPS coordinates?'.

Price$0.06per request

MethodPOST

Route/v1/geo/ecef-to-geodetic

StatusLive

MIME typeapplication/json

Rate limit120/minute

Cache0s public

geogisecefgeodeticbowringinversewgs84xyzcoordinate-transform

API URLhttps://x402.hexl.dev/v1/geo/ecef-to-geodetic

Integration docs

Example request

{
  "x": 3978675,
  "y": -8875,
  "z": 4968703
}

Example response

{
  "ecef": {
    "x": 3978675,
    "y": -8875,
    "z": 4968703
  },
  "ellipsoid": "WGS-84",
  "latitude": 51.50165,
  "longitude": -0.127806,
  "heightM": 289.154,
  "interpretation": "ECEF -> geodetic: 51.50165, -0.127806 at 289.154 m ellipsoidal height (Bowring's closed-form method)."
}

Input schema

{
  "type": "object",
  "required": [
    "x",
    "y",
    "z"
  ],
  "properties": {
    "x": {
      "type": "number",
      "examples": [
        3978675
      ]
    },
    "y": {
      "type": "number",
      "examples": [
        -8875
      ]
    },
    "z": {
      "type": "number",
      "examples": [
        4968703
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}