Converting pounds to ounces is straightforward: one pound equals 16 ounces. To perform the conversion, multiply the number of pounds by 16. For example, 5 pounds multiplied by 16 equals 80 ounces. This relationship is rooted in the avoirdupois system, the standard in the United States and the United Kingdom for measuring weight. Understanding this conversion is essential in various fields, including cooking, shipping, and personal weight measurements. For quick calculations, you can use online converters or refer to conversion tables.