Approximately how many milliliters are in 1 fluid ounce?

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Approximately how many milliliters are in 1 fluid ounce?

In the US customary system, one fluid ounce equals about 29.5735 milliliters. This comes from the standard conversion that 1 liter is 1000 milliliters and there are 33.814 US fluid ounces in a liter, so 1000 ÷ 33.814 ≈ 29.5735 mL per fluid ounce. When you round to two decimals, you get 29.57 mL, which is the closest precise value among the options. The other numbers are either far from the precise value or are rough approximations (for example, 30 mL is a rough round figure, but not as exact as 29.57).

In the US customary system, one fluid ounce equals about 29.5735 milliliters. This comes from the standard conversion that 1 liter is 1000 milliliters and there are 33.814 US fluid ounces in a liter, so 1000 ÷ 33.814 ≈ 29.5735 mL per fluid ounce. When you round to two decimals, you get 29.57 mL, which is the closest precise value among the options. The other numbers are either far from the precise value or are rough approximations (for example, 30 mL is a rough round figure, but not as exact as 29.57).

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