1 oz equals how many gm?

• A. 30 gm
• B. 28 gm
• C. 25 gm
• D. 32 gm

Answer: (B)

Converting ounces to grams uses a fixed factor: 1 ounce equals 28.3495 grams. In practical dosing, we round to the nearest gram, so 1 ounce is about 28 grams. That makes the option stating 28 grams the closest to the exact value (28.35 g). The other numbers are noticeably farther from 28.35 g and would introduce larger rounding differences in doses. If you need a bit more precision, remember 28.35 grams per ounce, or use 28 g for quick calculations.