Thanks for starting this post, but how many of you emailed/called the authors, publishers, and food website, and asked them to properly convert to the Metric System? Yes, this American does use the Metric System, but I have notice that all the food sites in America does not convert the Metric System correctly, Sadly they do exact conversion, if they do offer it. But who is going to measure out odd ball units like 237 mL or 453 g? So I had to make an instructable of the proper way to do it... http://www.instructables.com/id/Metrication-of-Recipes-Simplified/ In essence this is what should happen... All cups and spoons are now Metric cups, 250 mL, and Metric spoons, 15 mL Replace one pound with 500 g Replace one ounce (dry and fluid) with 31.25 g or mL --- I got that number by dividing 500 g by 16 (lbs/16) and dividing one liter by 32 (qt/32), both equal 31.25 Use volume to weight calculators on the web, be remember the cups are now Metric cups, 250 mL - not 237 mL Of course convert in. to cm and °F to °C