The conversion factor
1 milliliter equals 0.033814 fluid ounces (US). Multiply your milliliters value by 0.033814 to get fluid ounces (US); divide to go back. For the reverse direction, use the fluid ounces (US) to milliliters converter or the full volume converter.
Where this conversion comes up
Mixing metric and imperial is a daily reality in travel, shipping, recipes, fitness apps, and spec sheets — this page gives the exact factor plus a scannable table for the values people actually need.