Convert hardness units

Code-Snippets

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

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

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

Beispiel-Response

Echte Antwort dieses Endpoints, erfasst beim letzten Health-Check.

{
    "data": {
        "note": "Converted via ppm (mg/L as CaCO₃). 1 gpg = 17.118 ppm; 1 °dH = 17.848; 1 °f = 10; 1 °Clark = 14.254.",
        "input": {
            "from": "ppm",
            "value": 120
        },
        "hardness": {
            "mg_per_l": 120,
            "french_fh": 12,
            "german_dh": 6.7234,
            "ppm_caco3": 120,
            "mmol_per_l": 1.19896,
            "english_clark": 8.4187,
            "grains_per_gallon": 7.0102
        },
        "classification": "moderately hard"
    },
    "meta": {
        "timestamp": "2026-06-04T01:59:14.836Z",
        "request_id": "bda8b020-ecea-44ae-aebf-abfab6b127da"
    },
    "status": "ok",
    "message": "Hardness conversion",
    "success": true
}