ajayver

This plugin adds a widget that allows your users to convert different ingredients to different measurements. The data is taken from two csv files: data/ingredients.csv and data/measurements.csv. You can add as much more ingredients or measurements as you like.

Converter

This plugin adds a widget that allows your users to convert different ingredients to different measurements.

staxxx

Adds recipe post type, alowing you to add and manage recipes on your website. Supports archives and comments and has easy recipe ingredients and instructions management. 
Create, manage and publish your best recipes on your own website of blog. WP-Recipe is built out of custom post type (recipe) with multiple taxonomy support, ratings and interchangable formats. 
This is not another “add recipe to post” plgin, this is a “recipy post type” plugin, with custom template files included!
Feature overview:
<ul>
<li>Add and manage ingredients</li>
<li>Add and manage cooking instructions</li>
<li>Recipe origin and meal type taxonomies (category)</li>
<li>Custom recipe tags</li>
</ul>
Future features:
<ul>
<li>Degraded HTML5 support (currently only html5 browsers are fully supported)</li>
<li>Multi Language support</li>
<li>General settings with unit type setting</li>
<li>hRecipe in templates</li>
<li>Export recipe to recireML and other interchangable file formats</li>
</ul>
Requirements:
<ul>
<li>WordPress 3.0 or newer</li>
<li>Browser HTML5 Support (currently only Google Chrome, Apple Safari and Opera). Degraded support is planned in the near future.</li>
<li>Recipe origin and meal type taxonomies (category)</li>
<li>Custom recipe tags</li>
</ul>

WP Recipes

Manage recipes on your own wordpress blog with WP-Recipe. Supports taxonomies, featured image, .

Converter vs WP Recipes