How many milliliters are in 1 ounce?

How many milliliters are in 1 ounce?

• A. 15 mL
• B. 60 mL
• C. 30 mL
• D. 45 mL

Answer: (C)

Converting volumes between units relies on the correct conversion factor. For liquids, 1 fluid ounce is about 29.5735 milliliters. In practice, we round to the nearest whole milliliter and commonly use 30 mL per ounce for quick estimates. This makes 30 mL the best match for 1 ounce. The other options are noticeably off: 15 mL is about half of the true value, 45 mL is roughly 1.5 times, and 60 mL is about double. If you need more precision, you’d use 29.57 mL, but 30 mL is the convenient standard for everyday calculations.

Converting volumes between units relies on the correct conversion factor. For liquids, 1 fluid ounce is about 29.5735 milliliters. In practice, we round to the nearest whole milliliter and commonly use 30 mL per ounce for quick estimates. This makes 30 mL the best match for 1 ounce.

The other options are noticeably off: 15 mL is about half of the true value, 45 mL is roughly 1.5 times, and 60 mL is about double. If you need more precision, you’d use 29.57 mL, but 30 mL is the convenient standard for everyday calculations.