How many grams are there in one ounce?

One ounce is equal to approximately 28.35 grams. This conversion is based on the definition of an ounce in the avoirdupois system, which is commonly used in the United States for measuring weight. The fact that one ounce is slightly more than 28 grams provides precision needed in contexts like cooking, nutrition, and pharmaceuticals, where accurate measurements are crucial.

The other values provided do not accurately reflect the ounce-to-gram conversion. Knowing that 28.35 grams is the accurate figure is vital for anyone working with measurements, ensuring that they can convert units effectively for various applications, such as in agriculture and pest control where precise dosing is required.