ELI5. why is ml per floz different than g per oz

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Google tells me that there are 29.54 ml in a floz but only 28.35 g in an oz. I feel like these numbers should be the same. Why are they different?

In: 0

Grams are a measure of *mass*, while liters are a measure of *volume*. When you type in the grams to fl oz. conversion in Google, it automatically pulls a result for grams to *regular* ounces, which is a direct conversion of mass to weight. When you type in milliliters to fl oz., it pulls a result for ml to *fluid* ounces like you type.

If you look up a conversion tool for fluid ounces to grams you get the same number – https://www.inchcalculator.com/convert/fluid-ounce-to-gram/

0 views

Google tells me that there are 29.54 ml in a floz but only 28.35 g in an oz. I feel like these numbers should be the same. Why are they different?

In: 0

Grams are a measure of *mass*, while liters are a measure of *volume*. When you type in the grams to fl oz. conversion in Google, it automatically pulls a result for grams to *regular* ounces, which is a direct conversion of mass to weight. When you type in milliliters to fl oz., it pulls a result for ml to *fluid* ounces like you type.

If you look up a conversion tool for fluid ounces to grams you get the same number – https://www.inchcalculator.com/convert/fluid-ounce-to-gram/