Fluid ounces to mL

1. Units and Conversion 1.3) Volume 1.3.1) Volume - General

1.3.1.1) Fl. oz to mL Easy 1


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The label on a bottle claims the volume to be 20.5 fl.oz. Express it in mL.


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lb equals 606.2 kg

    Answer: 606.2 mL.
    • We know that, 1 fluid ounce (fl. oz.) equals 29.57 mL. In everyday application we may round it up to 30 mL, but in pharmaceutical calculation we have to use the 29.57 value
    • We can write: 1 fl. oz. = 29.57 mL
    • Therefore, 20.5 fl. oz. = 29.57 × 20.5 = 606.2 mL