Fluid Ounces to Milliliters Converter
Common Conversions
| fl oz | mL |
|---|---|
| 0.5 | 14.79 |
| 1 | 29.57 |
| 2 | 59.15 |
| 4 | 118.3 |
| 8 | 236.6 |
| 12 | 354.9 |
| 16 | 473.2 |
| 24 | 709.8 |
| 32 | 946.4 |
| 64 | 1892.7 |
| 128 | 3785.4 |
Why this conversion matters in chemistry
US-retail liquids — cleaning chemicals, household acids, hobby reagents, supplement tinctures — get bottled in fluid ounces. Lab work runs in milliliters. The conversion factor is 29.5735 mL per US fl oz, exact through the legal definition. A 16 fl oz bottle is 473 mL, comfortably more than a 500 mL graduated cylinder will hold. The mental shortcut of "1 fl oz ≈ 30 mL" is within 1.5% and good enough for sizing a beaker; the full factor matters as soon as the calculation feeds into a quantitative analysis or a label-claim verification.
Formula
Worked Examples
One US fluid ounce — close to but not exactly 30 mL, which is the rounded figure most people memorize.
One US cup, useful when household-recipe volumes meet a chemistry calculation that wants mL.
A typical bottle size for US-supplied reagents and household chemicals — close to but not equal to a 500 mL bottle.
One US quart, about 5% short of a liter — the gap that the rough "a quart is a liter" approximation papers over.