HTML
<div id="rootwizard">
<div class="navbar">
<div class="navbar-inner">
<div class="container">
<ul>
<li><a href="#tab1" data-toggle="tab">First</a></li>
<li><a href="#tab2" data-toggle="tab">Second</a></li>
<li><a href="#tab3" data-toggle="tab">Third</a></li>
<li><a href="#tab4" data-toggle="tab">Forth</a></li>
<li><a href="#tab5" data-toggle="tab">Fifth</a></li>
<li><a href="#tab6" data-toggle="tab">Sixth</a></li>
<li><a href="#tab7" data-toggle="tab">Seventh</a></li>
</ul>
</div>
</div>
</div>
<div id="bar" class="progress">
<div class="progress-bar" role="progressbar" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100" style="width: 0%;"></div>
</div>
<div class="tab-content">
<div class="tab-pane" id="tab1">
1
</div>
<div class="tab-pane" id="tab2">
2
</div>
<div class="tab-pane" id="tab3">
3
</div>
<div class="tab-pane" id="tab4">
4
</div>
<div class="tab-pane" id="tab5">
5
</div>
<div class="tab-pane" id="tab6">
6
</div>
<div class="tab-pane" id="tab7">
7
</div>
<ul class="pager wizard">
<li class="previous first" style="display:none;"><a href="#">First</a></li>
<li class="previous"><a href="#">Previous</a></li>
<li class="next last" style="display:none;"><a href="#">Last</a></li>
<li class="next"><a href="#">Next</a></li>
</ul>
</div>
</div>
JS
$(document).ready(function() {
$('#rootwizard').bootstrapWizard({onTabShow: function(tab, navigation, index) {
var $total = navigation.find('li').length;
var $current = index+1;
var $percent = ($current/$total) * 100;
$('#rootwizard .progress-bar').css({width:$percent+'%'});
}});
});