• Uriel238 [all pronouns]@lemmy.blahaj.zone
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    24 hours ago

    You can’t convert them. Fluid ounces are volume. Regular ounces are weight (which isn’t quite the same as mass, though they’re used interchangeably on earth).

    1 fl oz = 1 oz when the substance is water (at slightly above freezing). Any other substance would involve a specific mass factor.