The prefix "micro" means 1/1,000,000, so 1 microliter = 0.001 milliliters. Alternatively, there are 1,000 microliters in milliliter. One microliter = 0.0000338 fluid ounces
Interactive Learning Paradigms Incorporated ILPI (Knowledge at the Speed of Light), The MSDS Hyper Glossary (Home Page of the Material Safety Data Sheet Hyper Glossary), ILPI, NJ, USA 2011. http://www.ilpi.com/msds/ref/index.html, (MSDS - Amer) {448}