1 newton is equal to 0.224808943871 pounds, or 1 joule/metre. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between pounds-force and joules/meter. Type in your own numbers in the form to convert the units!
Dairy refers to milk and any part of milk that comes from cows and other mammals. So to be dairy-free, a product must have no milk and no part of milk. Lactose, on the other hand, is merely an ingredient in milk, or a part of milk. It is the sugar component of dairy products. So a product that is dairy-free will not have lactose in it.
People with lactose intolerance can eat foods that contain casein and whey, which are milk proteins, not sugars. If a product is labeled lactose free, that does not mean it is necessarily dairy free. People who seek dairy free products may be vegan or have an allergy to dairy (usually the proteins, casein or whey). Vegans avoid all animal products, including eggs and dairy, for a variety of reasons, including health, religious or ethical views.