TheRecipeManager provides information on measurement equivalents.
You can view the measure equivalents, by selecting 'Kitchen Helpers' from the 'View' menu, or by pressing the 'Ctrl' + 'k' keys. This opens up the Kitchen Helpers window. From there select the 'Equivalents' tab to view measurement equivalents for Dry/Liquid, Butter/Solid Fats, Granulated Sugar and Unsifted Flour