Parse a tyre size

Code snippets

curl "https://api.oanor.com/tirecalc-api/v1/tire" \
  -H "x-oanor-key: oanor_test_..."

await fetch("https://api.oanor.com/tirecalc-api/v1/tire", {
  headers: { "x-oanor-key": "oanor_test_..." }
});

$ch = curl_init("https://api.oanor.com/tirecalc-api/v1/tire");
curl_setopt($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/tirecalc-api/v1/tire",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

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

{
    "data": {
        "spec": "205/55R16",
        "rim_in": 16,
        "rim_mm": 406.4,
        "width_mm": 205,
        "diameter_in": 24.878,
        "diameter_mm": 631.9,
        "revs_per_km": 503.735,
        "sidewall_mm": 112.75,
        "aspect_ratio": 55,
        "revs_per_mile": 810.682,
        "circumference_mm": 1985.17
    },
    "meta": {
        "timestamp": "2026-06-03T17:42:03.001Z",
        "request_id": "6aaccf9c-5c3e-4320-a77f-ebee508ea1ca"
    },
    "status": "ok",
    "message": "Tire dimensions",
    "success": true
}