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2026-05-16 11:10:19 +02:00
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+<!DOCTYPE html>
+<html lang="fr">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>Convertisseur d’unités</title>
+
+  <!-- Font -->
+  <link href="https://fonts.googleapis.com/css2?family=Comfortaa:wght@400;700&display=swap" rel="stylesheet">
+
+  <!-- CSS -->
+  <link rel="stylesheet" href="/data/css/style.unit.css">
+
+  <link rel="icon" type="image/png" sizes="32x32" href="/data/media/icon_circle.png">
+</head>
+
+<body>
+
+<div class="container">
+  <h1>Convertisseur d’unités</h1>
+
+  <label>Catégorie</label>
+  <select id="category" onchange="updateUnits()">
+    <option value="length">Longueur</option>
+    <option value="weight">Poids</option>
+    <option value="temperature">Température</option>
+    <option value="volume">Volume</option>
+  </select>
+
+  <label>Valeur</label>
+  <input type="number" id="value" placeholder="Entrez une valeur">
+
+  <div class="row">
+    <div>
+      <label>De</label>
+      <select id="from"></select>
+    </div>
+
+    <div>
+      <label>Vers</label>
+      <select id="to"></select>
+    </div>
+  </div>
+
+  <button onclick="convert()">Convertir</button>
+
+  <div class="result" id="result"></div>
+</div>
+
+<script>
+const units = {
+  length: {
+    mm: 0.001,
+    cm: 0.01,
+    m: 1,
+    km: 1000,
+    inch: 0.0254,
+    foot: 0.3048,
+    yard: 0.9144,
+    mile: 1609.34
+  },
+  weight: {
+    g: 1,
+    kg: 1000,
+    oz: 28.3495,
+    lb: 453.592
+  },
+  volume: {
+    ml: 1,
+    l: 1000,
+    pint: 473.176,
+    quart: 946.353,
+    gallon: 3785.41
+  },
+  temperature: {
+    c: "c",
+    f: "f"
+  }
+};
+
+function updateUnits() {
+  const category = document.getElementById("category").value;
+  const from = document.getElementById("from");
+  const to = document.getElementById("to");
+
+  from.innerHTML = "";
+  to.innerHTML = "";
+
+  for (const unit in units[category]) {
+    from.innerHTML += `<option value="${unit}">${unit}</option>`;
+    to.innerHTML += `<option value="${unit}">${unit}</option>`;
+  }
+}
+
+function convert() {
+  const category = document.getElementById("category").value;
+  const value = parseFloat(document.getElementById("value").value);
+  const from = document.getElementById("from").value;
+  const to = document.getElementById("to").value;
+  const resultEl = document.getElementById("result");
+
+  if (isNaN(value)) {
+    resultEl.textContent = "Veuillez entrer un nombre valide.";
+    return;
+  }
+
+  let result;
+
+  if (category === "temperature") {
+    if (from === to) result = value;
+    else if (from === "f") result = (value - 32) * 5 / 9;
+    else result = (value * 9 / 5) + 32;
+  } else {
+    const base = value * units[category][from];
+    result = base / units[category][to];
+  }
+
+  resultEl.textContent = `${result.toFixed(3)} ${to}`;
+}
+
+updateUnits();
+</script>
+
+</body>
+</html>