Sandy McFadden

This is a great plugin which will help you keep track and brag about the progress you make as you start losing weight or getting healthy. 
You get to decide which measurements you want to keep track of and you can change them at any point.

Health Progress

Health Progress will add a widget and shortcode to your site which will display your starting measurements and progress as you get healthy.

Lucian Apostol

You can add the plugin as a widget, dragging and dropping it from the WordPress administration panel, Appearance->Widgets section, or with a short tag directly in your blog posts or pages using the [calotor] shortcode.
You can also add it directly into your template files.

Calotor Calorie Counter

Provide your visitors the ability to figure out their basal metabolic rate, based on their age, sex and weight.

Health Progress vs Calotor Calorie Counter