HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>height innerHeight outerHeight compare</title>
  <style>
    body { font-family: sans-serif; padding: 16px; }
    #box {
      width: 120px;
      padding: 12px;
      border: 4px solid #333;
      margin: 16px 0;
      background: #fef3c7;
    }
    #out { font-family: monospace; line-height: 1.9; }
  </style>
</head>
<body>
  <div id="box">Sample content</div>
  <div id="out"></div>
  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
  <script>
    var $box = $("#box");
    var lines = [
      ".height()              → " + $box.height() + "px (content)",
      ".innerHeight()         → " + $box.innerHeight() + "px (+ padding)",
      ".outerHeight()         → " + $box.outerHeight() + "px (+ border)",
      ".outerHeight(true)     → " + $box.outerHeight(true) + "px (+ margin)"
    ];
    $("#out").html(lines.join("<br>"));
  </script>
</body>
</html>

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jQuery height vs innerHeight vs outerHeight (Try It)