This is the home page for TopCode's BMI widget.
There are many BMI widgets around. The BMI calculation is a simple formula:
BMI = your-weight x your-height squared
What makes this calculator different is that its multi-national - users can choose whichever system of units they are familiar with.
To use the widget on your site, put this code snippet in your markup:
<iframe src="http://www.topcode.co.uk/tools/bmi/bmi_widget.php" width="210" height="298" frameborder="0" scrolling="no"> </iframe>