Converting ounces to grams is a common task in various fields, including cooking, science, and commerce. An ounce (oz) is a unit of mass in the imperial and US customary systems, defined as exactly 28.349523125 grams (g). To convert ounces to grams, multiply the number of ounces by 28.349523125. For example, 5 ounces equal approximately 141.7476 grams (5 × 28.349523125). Conversely, to convert grams to ounces, divide the number of grams by 28.349523125. This conversion is essential for accurate measurements, especially when dealing with international recipes or scientific data that require precise mass calculations.