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GET /v1/range

Range from fuel, burn and ground speed

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10 free calls per day — no sign-up, no API key. Goes through the oanor gateway.

Custom headers (optional)
api.oanor.com/fuelburn-api

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Code snippets

curl "https://api.oanor.com/fuelburn-api/v1/range" \
  -H "x-oanor-key: oanor_test_..."
await fetch("https://api.oanor.com/fuelburn-api/v1/range", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
$ch = curl_init("https://api.oanor.com/fuelburn-api/v1/range");
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$out = curl_exec($ch);
import requests
requests.get(
    "https://api.oanor.com/fuelburn-api/v1/range",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

A real response from this endpoint, captured by the latest health check.

{
    "data": {
        "note": "Range = usable endurance × ground speed, so it lives or dies on the wind: a headwind cuts the ground speed and the range with it, while burning the same fuel per hour. Always plan range on the forecast ground speed, not the true airspeed, and keep the reserve out of the calculation — the range here is to the reserve, not to dry tanks.",
        "inputs": {
            "burn_gph": 10,
            "fuel_gal": 50,
            "reserve_min": 45,
            "ground_speed_kt": 120
        },
        "range_nm": 510,
        "usable_endurance_h": 4.25
    },
    "meta": {
        "timestamp": "2026-06-07T08:18:05.424Z",
        "request_id": "0225b91d-eaba-4525-b22f-8790a9424b6e"
    },
    "status": "ok",
    "message": "Range",
    "success": true
}