🟠 Calculate corrected QT interval (QTc interval)

    <label>Heart Rate</label>
    <input type="number" class="form-control" id="heart-rate" required="">

    <label>QT Interval (in msec)</label>
    <input type="number" class="form-control" id="qt-interval" required="">

<button type="submit" class="btn btn-primary mt-3">Calculate</button>